×
验证码:
换一张
忘记密码？
记住我
×
登录
中文版
|
English
中国科学院昆明植物研究所知识管理系统
Knowledge Management System of Kunming Institute of Botany,CAS
登录
注册
ALL
ORCID
题名
作者
学科领域
关键词
资助项目
文献类型
出处
收录类别
出版者
发表日期
存缴日期
学科门类
学习讨论厅
图片搜索
粘贴图片网址
首页
研究单元&专题
作者
文献类型
学科分类
知识图谱
新闻&公告
在结果中检索
研究单元&专题
昆明植物所硕博研... [185]
作者
杨丽娥 [2]
胡茜 [1]
李国栋 [1]
刘珉璐 [1]
张雪梅 [1]
刘菲 [1]
更多...
文献类型
学位论文 [185]
发表日期
2022 [6]
2020 [9]
2018 [6]
2017 [8]
2016 [7]
2015 [3]
更多...
语种
中文 [162]
出处
资助项目
GST, p < 0.01). At the regional level, Chinese and Japanese L. hodgsonii had a similar estimate of genetic diversity (China: Hd = 0.847, HT = 0.869; Japan: Hd = 0.766, HT = 0.867). Populations from China and Japan possess unique sets of haplotypes, and no haplotypes were shared between the regions. Furthermore, both the phyloegenetic and network analyses recovered the haplotypes of China and Japan as two distinct clades. Thus, we suggested the disjunct distribution of L. hodgsonii in China and Japan may present the climatic vicariant relicts of the ancient widely distributed populations. After divergence, this species within each region experienced independent evolutionary process. In China, L. hodgsonii was distributed around the Sichuan Basin. This distribution range can be divided into five regions. They were Jiajin Mountain region, E’mei Mountain region, Yunnan-Guizhou Plateau region, Wushan-Wuling Mountain region and Qinling Mountain region. Twelve haplotypes were indentified within these regions. Each region had its own specific haplotypes, which had different ancestry in the network. We deduced that Chinese L. hodgsonii might survive the LGM in multiple isolated refugia around the Sichuan Basin. In Japan, L. hodgsonii was disjunctively distributed in northern Honshu and Hokkaido. Seven haplotypes were identified within this region. However, the genetic diversity in Honshu (Hd = 0.821) was much higher than that in Hokkaido (Hd = 0.513). And all haplotypes in Hokkaido were derived from Honshu. This haplotype distribution suggested that the northern Honshu could have served as refuge in Japan. Nested clade analysis (NCA) indicated multiple forces including the vicariance and long-distance dispersal affected the disjunctive distribution among populations of L. hodgsonii in Japan.2. The phylogeography of L. tongolensis，Ligularia tongolensis was distributed along the Jinshajiang watershed, Yalongjiang watershed and Wumeng Mountain. In order to deduce the demographic history of this species, we sequenced two chloroplast DNA (cpDNA) intergenic spacers (trnQ-5’rps16, trnL-rpl32) in 140 individuals from 14 populations of three groups (Jinshajiang vs. Yalongjiang vs. Wumeng) within this species range. High levels of haplotype diversity (Hd = 0.814) and total genetic diversity (HT = 0.862) were detected at the species level, based on a total oftwelve haplotypes identified. However, the intrapopulation diversity (HS = 0.349) was low, which led to the high levels of genetic divergence (GST = 0.595, NST = 0.614, FST = 0.597). In consideration of the speciation of L. tongolensis resulting from the uplifts of the Qinghai-Tibetan Plateau (QTP), we thought the present genetic structure of L. tongolensis was shaped by the fragmentation of ancestral populations during the courses of QTP uplifts. This was further supported by the absence of IBD tests (r = –0.291, p = 0.964), which suggest that the differentiation had not occurred in accordance with the isolation by distance model. The genetic differentiation in L. tongolensis appears to be associated with historical events. Meanwhile, H2 and H5, the dominant haplotypes that located on internal nodes and deviated from extinct ancestral haplotype in the network, were detected to be shared between Jinshajiang and Yalongjiang groups. We deduced that ancestral populations of this species might have had a continuous distribution range, which was then fragmented and isolated by the following tectonic events. Finally, the ancestral polymorphism, H2 and H5, were randomly allocated in Jinshajiang watershed and Yalongjiang watershed. Meanwhile, H5 was the dominant haplotype in Jinshajiang watershed; H7 was the domiant haplotype in Yalongjiang watershed and Wumeng Mountain. This haplotype distribution pattern indicated that each group might have served as a refuge for L. tongolensis during the Quaternary Glaciation. Postglacial demographic expansion was supported by unimodal mismatch distribution and star-like phylogenies, with expansion ages of 274 ka B. P. for this species","jscount":"1","jsurl":"/simple-search?field1=all&rpp=10&accurate=false&advanced=false&fq=location.comm.id%3A1&sort_by=2&isNonaffiliated=false&search_type=-1&query1=%25E7%25B3%25BB%25E7%25BB%259F%25E6%25BC%2594%25E5%258C%2596&order=desc&&fq=dc.project.title_filter%3AThe%5C+origin%5C+center%5C+and%5C+diversity%5C+center%5C+of%5C+the%5C+genus%5C+Ligularia%5C+were%5C+considered%5C+to%5C+be%5C+central%5C+China%5C+and%5C+Hengduan%5C+Mountains%5C+Region%5C+%5C%28HMR%5C%29%5C+of%5C+China%2C%5C+respectively.%5C+In%5C+this%5C+research%2C%5C+we%5C+studied%5C+the%5C+phylogeographic%5C+pattern%5C+of%5C+L.%5C+hodgsonii%5C+and%5C+L.%5C+tongolensis%2C%5C+which%5C+was%5C+distributed%5C+in%5C+the%5C+origin%5C+center%5C+and%5C+diversity%5C+center%2C%5C+respectively.%5C+We%5C+aimed%5C+to%5C+infer%5C+the%5C+evolutionary%5C+process%5C+of%5C+Ligularia%5C+species.%5C+1.%5C+The%5C+phylogeography%5C+of%5C+L.%5C+hodgsonii%EF%BC%8CHere%2C%5C+we%5C+investigated%5C+the%5C+phylogeographic%5C+history%5C+of%5C+L.%5C+hodgsonii%5C+disjunctively%5C+distributed%5C+in%5C+China%5C+and%5C+Japan.%5C+Two%5C+hundred%5C+and%5C+eighty%5C+individuals%5C+were%5C+collected%5C+from%5C+29%5C+natural%5C+populations%2C%5C+23%5C+located%5C+in%5C+China%5C+and%5C+6%5C+in%5C+Japan.%5C+A%5C+total%5C+of%5C+19%5C+haplotypes%5C+were%5C+identified%5C+with%5C+the%5C+combination%5C+of%5C+three%5C+chloroplast%5C+DNA%5C+%5C%28cpDNA%5C%29%5C+sequences%5C+variations%5C+%5C%28trnQ%5C-5%E2%80%99rps16%2C%5C+trnL%5C-rpl32%5C+and%5C+psbA%5C-trnH%5C%29.%5C+At%5C+the%5C+species%5C+level%2C%5C+a%5C+high%5C+level%5C+of%5C+haplotype%5C+diversity%5C+%5C%28Hd%5C%29%5C+and%C2%A0total%5C+genetic%5C+diversity%5C+%5C%28HT%5C%29%5C+was%5C+detected.%5C+However%2C%5C+the%5C+average%5C+intrapopulation%5C+diversity%5C+%5C%28HS%5C%29%5C+was%5C+very%5C+low.%5C+Consequently%2C%5C+the%5C+population%5C+differentiation%5C%28NST%5C+%3D%5C+0.989%2C%5C+GST%5C+%3D%5C+0.933%5C+%5C%29%5C+was%5C+pronounced%5C+with%5C+a%5C+significant%5C+phylogeographic%5C+structure%5C+%5C%28NST%5C+%3E%5C+GST%2C%5C+p%5C+%3C%5C+0.01%5C%29.%5C+At%5C+the%5C+regional%5C+level%2C%5C+Chinese%5C+and%5C+Japanese%5C+L.%5C+hodgsonii%5C+had%5C+a%5C+similar%5C+estimate%5C+of%5C+genetic%5C+diversity%5C+%5C%28China%5C%3A%5C+Hd%5C+%3D%5C+0.847%2C%5C+HT%5C+%3D%5C+0.869%5C%3B%5C+Japan%5C%3A%5C+Hd%5C+%3D%5C+0.766%2C%5C+HT%5C+%3D%5C+0.867%5C%29.%5C+Populations%5C+from%5C+China%5C+and%5C+Japan%5C+possess%5C+unique%5C+sets%5C+of%5C+haplotypes%2C%5C+and%5C+no%5C+haplotypes%5C+were%5C+shared%5C+between%5C+the%5C+regions.%5C+Furthermore%2C%5C+both%5C+the%5C+phyloegenetic%5C+and%5C+network%5C+analyses%5C+recovered%5C+the%5C+haplotypes%5C+of%5C+China%5C+and%5C+Japan%5C+as%5C+two%5C+distinct%5C+clades.%5C+Thus%2C%5C+we%5C+suggested%5C+the%5C+disjunct%5C+distribution%5C+of%5C+L.%5C+hodgsonii%5C+in%5C+China%5C+and%5C+Japan%5C+may%5C+present%5C+the%5C+climatic%5C+vicariant%5C+relicts%5C+of%5C+the%5C+ancient%5C+widely%5C+distributed%5C+populations.%5C+After%5C+divergence%2C%5C+this%5C+species%5C+within%5C+each%5C+region%5C+experienced%5C+independent%5C+evolutionary%5C+process.%5C+In%5C+China%2C%5C+L.%5C+hodgsonii%5C+was%5C+distributed%5C+around%5C+the%5C+Sichuan%5C+Basin.%5C+This%5C+distribution%5C+range%5C+can%5C+be%5C+divided%5C+into%5C+five%5C+regions.%5C+They%5C+were%5C+Jiajin%5C+Mountain%5C+region%2C%5C+E%E2%80%99mei%5C+Mountain%5C+region%2C%5C+Yunnan%5C-Guizhou%5C+Plateau%5C+region%2C%5C+Wushan%5C-Wuling%5C+Mountain%5C+region%5C+and%5C+Qinling%5C+Mountain%5C+region.%5C+Twelve%5C+haplotypes%5C+were%5C+indentified%5C+within%5C+these%5C+regions.%5C+Each%5C+region%5C+had%5C+its%5C+own%5C+specific%5C+haplotypes%2C%5C+which%5C+had%5C+different%5C+ancestry%5C+in%5C+the%5C+network.%5C+We%5C+deduced%5C+that%5C+Chinese%5C+L.%5C+hodgsonii%5C+might%5C+survive%5C+the%5C+LGM%5C+in%5C+multiple%5C+isolated%5C+refugia%5C+around%5C+the%5C+Sichuan%5C+Basin.%5C+In%5C+Japan%2C%5C+L.%5C+hodgsonii%5C+was%5C+disjunctively%5C+distributed%5C+in%5C+northern%5C+Honshu%5C+and%5C+Hokkaido.%5C+Seven%5C+haplotypes%5C+were%5C+identified%5C+within%5C+this%5C+region.%5C+However%2C%5C+the%5C+genetic%5C+diversity%5C+in%5C+Honshu%5C+%5C%28Hd%5C+%3D%5C+0.821%5C%29%5C+was%5C+much%5C+higher%5C+than%5C+that%5C+in%5C+Hokkaido%5C+%5C%28Hd%5C+%3D%5C+0.513%5C%29.%5C+And%5C+all%5C+haplotypes%5C+in%5C+Hokkaido%5C+were%5C+derived%5C+from%5C+Honshu.%5C+This%5C+haplotype%5C+distribution%5C+suggested%5C+that%5C+the%5C+northern%5C+Honshu%5C+could%5C+have%5C+served%5C+as%5C+refuge%5C+in%5C+Japan.%5C+Nested%5C+clade%5C+analysis%5C+%5C%28NCA%5C%29%5C+indicated%5C+multiple%5C+forces%5C+including%5C+the%5C+vicariance%5C+and%5C+long%5C-distance%5C+dispersal%5C+affected%5C+the%5C+disjunctive%5C+distribution%5C+among%5C+populations%5C+of%5C+L.%5C+hodgsonii%5C+in%5C+Japan.2.%5C+The%5C+phylogeography%5C+of%5C+L.%5C+tongolensis%EF%BC%8CLigularia%5C+tongolensis%5C+was%5C+distributed%5C+along%5C+the%5C+Jinshajiang%5C+watershed%2C%5C+Yalongjiang%5C+watershed%5C+and%5C+Wumeng%5C+Mountain.%5C+In%5C+order%5C+to%5C+deduce%5C+the%5C+demographic%5C+history%5C+of%5C+this%5C+species%2C%5C+we%5C+sequenced%5C+two%5C+chloroplast%5C+DNA%5C+%5C%28cpDNA%5C%29%5C+intergenic%5C+spacers%5C+%5C%28trnQ%5C-5%E2%80%99rps16%2C%5C+trnL%5C-rpl32%5C%29%5C+in%5C+140%5C+individuals%5C+from%5C+14%5C+populations%5C+of%5C+three%5C+groups%5C+%5C%28Jinshajiang%5C+vs.%5C+Yalongjiang%5C+vs.%5C+Wumeng%5C%29%5C+within%5C+this%5C+species%5C+range.%5C+High%5C+levels%5C+of%5C+haplotype%5C+diversity%5C+%5C%28Hd%5C+%3D%5C+0.814%5C%29%5C+and%5C+total%5C+genetic%5C+diversity%5C+%5C%28HT%5C+%3D%5C+0.862%5C%29%5C+were%5C+detected%5C+at%5C+the%5C+species%5C+level%2C%5C+based%5C+on%5C+a%5C+total%5C+oftwelve%5C+haplotypes%5C+identified.%5C+However%2C%5C+the%5C+intrapopulation%5C+diversity%5C+%5C%28HS%5C+%3D%5C+0.349%5C%29%5C+was%5C+low%2C%5C+which%5C+led%5C+to%5C+the%5C+high%5C+levels%5C+of%5C+genetic%5C+divergence%5C+%5C%28GST%5C+%3D%5C+0.595%2C%5C+NST%5C+%3D%5C+0.614%2C%5C+FST%5C+%3D%5C+0.597%5C%29.%5C+In%5C+consideration%5C+of%5C+the%5C+speciation%5C+of%5C+L.%5C+tongolensis%5C+resulting%5C+from%5C+the%5C+uplifts%5C+of%5C+the%5C+Qinghai%5C-Tibetan%5C+Plateau%5C+%5C%28QTP%5C%29%2C%5C+we%5C+thought%5C+the%5C+present%5C+genetic%5C+structure%5C+of%5C+L.%5C+tongolensis%5C+was%5C+shaped%5C+by%5C+the%5C+fragmentation%5C+of%5C+ancestral%5C+populations%5C+during%5C+the%5C+courses%5C+of%5C+QTP%5C+uplifts.%5C+This%5C+was%5C+further%5C+supported%5C+by%5C+the%5C+absence%5C+of%5C+IBD%5C+tests%5C+%5C%28r%5C+%3D%5C+%E2%80%930.291%2C%5C+p%5C+%3D%5C+0.964%5C%29%2C%5C+which%5C+suggest%5C+that%5C+the%5C+differentiation%5C+had%5C+not%5C+occurred%5C+in%5C+accordance%5C+with%5C+the%5C+isolation%5C+by%5C+distance%5C+model.%5C+The%5C+genetic%5C+differentiation%5C+in%5C+L.%5C+tongolensis%5C+appears%5C+to%5C+be%5C+associated%5C+with%5C+historical%5C+events.%5C+Meanwhile%2C%5C+H2%5C+and%5C+H5%2C%5C+the%5C+dominant%5C+haplotypes%5C+that%5C+located%5C+on%5C+internal%5C+nodes%5C+and%5C+deviated%5C+from%5C+extinct%5C+ancestral%5C+haplotype%5C+in%5C+the%5C+network%2C%5C+were%5C+detected%5C+to%5C+be%5C+shared%5C+between%5C+Jinshajiang%5C+and%5C+Yalongjiang%5C+groups.%5C+We%5C+deduced%5C+that%5C+ancestral%5C+populations%5C+of%5C+this%5C+species%5C+might%5C+have%5C+had%5C+a%5C+continuous%5C+distribution%5C+range%2C%5C+which%5C+was%5C+then%5C+fragmented%5C+and%5C+isolated%5C+by%5C+the%5C+following%5C+tectonic%5C+events.%5C+Finally%2C%5C+the%5C+ancestral%5C+polymorphism%2C%5C+H2%5C+and%5C+H5%2C%5C+were%5C+randomly%5C+allocated%5C+in%5C+Jinshajiang%5C+watershed%5C+and%5C+Yalongjiang%5C+watershed.%5C+Meanwhile%2C%5C+H5%5C+was%5C+the%5C+dominant%5C+haplotype%5C+in%5C+Jinshajiang%5C+watershed%5C%3B%5C+H7%5C+was%5C+the%5C+domiant%5C+haplotype%5C+in%5C+Yalongjiang%5C+watershed%5C+and%5C+Wumeng%5C+Mountain.%5C+This%5C+haplotype%5C+distribution%5C+pattern%5C+indicated%5C+that%5C+each%5C+group%5C+might%5C+have%5C+served%5C+as%5C+a%5C+refuge%5C+for%5C+L.%5C+tongolensis%5C+during%5C+the%5C+Quaternary%5C+Glaciation.%5C+Postglacial%5C+demographic%5C+expansion%5C+was%5C+supported%5C+by%5C+unimodal%5C+mismatch%5C+distribution%5C+and%5C+star%5C-like%5C+phylogenies%2C%5C+with%5C+expansion%5C+ages%5C+of%5C+274%5C+ka%5C+B.%5C+P.%5C+for%5C+this%5C+species"},{"jsname":"The relationship between leaf physiognomy and climate is widely used to reconstruct paleoclimates of Cenozoic floras. Previous works demonstrate that LMA show regional constraints. Until now, no equation has been set up directly from Chinese forests. This relationship is exhaustively studied based on 50 samples from mesic to humid forests across China. Models including Leaf Margin Analysis (LMA), Single Linear regression for Precipitation, and Climate Leaf Analysis Multivariate Program (CLAMP), are set up and used to quantitatively reconstruct paleoclimates of Chinese Neogene floras. Meanwhile, a paleoflora, i.e., Yangjie flora, which belongs to the Upper Pliocene Sanying formation in West Yunnan Province, is studied. The species assemblage, paleoclimate and paleoecology of Yangjie flora are discussed. Conclusions in this dissertation are as following: 1. Chinese leaf physiognomy-climate models based on regression analyses，LMA is a widely used method that applies present-day linear correlation between the proportion of woody dicotyledonous species with untoothed leaves (P) and mean annual temperature (MAT) to estimate paleotemperatures from fossil leaf floras. The Chinese data indicate that P shows a strong linear correlation with MAT, but the actual relationship is slightly different from those recognized from other regions. Among all currently used LMA equations, the one resulting from North and Central American and Japanese data, rather than the widely used East Asian LMA equation, yields the closest values to the actual MATs of the Chinese samples (mean absolute error = 1.9°C). A new equation derived from the Chinese forests is therefore developed, where MAT = 1.038 + 27.6 × P. This study not only demonstrates the similarity of the relationship between P and MAT in the Northern Hemisphere, but also improves the reliability of LMA for paleoclimate reconstructions of Chinese paleofloras. Besides, regression analyses are used to explore the relationship between leaf physiognomy and precipitation. In contrast to former studies, entire leaf margin shows the highest correlation with the Growing Season Precipitation (GSP). A new equation is proposed: GSP = 228.0 + 1707.0 × P. 2. The new calibrated CLAMP dataset – PHYSGCHINA，CLAMP, which is based on canonical correspondence analysis, is improved by the inclusion of 50 Chinese samples. The result indicates that, new calibrated data from 50 Chinese sample sites are situated away from the former 144 samples in the physiognomic space, which may be caused by the unique characters of leaf physiognomy under monsoon condition. Therefore, a new calibrated CLAMP dataset, i.e., PHYSGCHINA, is set up based on 50 new Chinese samples, and 144 former samples from PHYSG3BRC. This new dataset could improve the accuracy of paleoclimate reconstructions for floras under the monsoon climate condition. When it is applied to Chinese Neogene floras, PHYSGCHINA could improve the accuracy of paleoclimate parameters, especially parameters related to precipitation. 3. Paleoclimate reconstructions of Chinese Cenozoic floras，Paleoclimates of Chinese Cenozoic floras are reconstructed using leaf physiognomy- climate models being set up in this study. The Chinese paleoclimate history in Eocene is similar to the trend from worldwide record. That is, hot climate presented in early Eocene and early Middle Eocene, and then, climate cooled down from late Middle Eocene to Late Eocene in China. Moreover, paleoclimates of two Late Miocene floras from Yunnan province, i.e., Xiaolongtan flora and Bangmai flora, are reconstructed using different models. The results indicate that, temperature of Yunnan is slightly higher than that in nowadays, but the precipitation is much higher than that at present day, which may be caused by the uplift of Hengduan Mountain. 4. Late Pliocene Yangjie flora in West Yunnan Province, China，A Late Pliocene Yangjie flora form Yongping County, western Yunnan province, which belongs to Sanying formation, is studied in this dissertation. Yangjie flora is dominated by Quercus sect. Heterobalanus (Oerst.) Menits. (evergreen sclerophyllous oaks), and this forest type is quite common in SW China at present. The discovery of Yangjie flora provides evidence that, vegetations of Yunnan in Miocene were dominated by evergreen forests, and the dominant families were Fabaceae, Fagaceae and Lauraceae. In Pliocene, this vegetation type changed gradually to evergreen sclerophyllous oak forests. This vegetation change may have been caused by the uplift of Hengduan Mountain in Neogene. A polypodiaceous fern, Drynaria callispora sp. nov., is described from the upper Pliocene Sanying Formation in western Yunnan Province, southwestern China. The species with well-preserved pinnae and in situ spores is the first convincing Drynaria fossil record. Detailed morphological investigation reveals that D. callispora is characterized by 1) pinnatifid fronds with entire-margined pinnae having straight or zigzag secondary veins; 2) finer venation showing void quadrangular areoles, but occasionally with one unbranched veinlet; 3) one row of circular sori on each side of the strong primary vein; and 4) in situ spores with verrucate exospores elliptical in polar view and bean-shaped in equatorial view. A morphological comparison shows that D. callispora is significantly different from all the fossil species previously identified as drynarioids. A phylogenetic analysis of D. callispora supports that the fossil is closely related to D. sinica Diels and D. mollis Bedd., two extant species distributing in the Himalayas. The discovery of the new fern indicates that the genus Drynaria became diversified in its modern distribution region no later than the late Pliocene and had retained the similar ecology to that of many modern drynarioid ferns ever since. 5. Paleoclimate reconstruction of Yangjie flora，LMA, Single Linear Regression for Precipitation and PHYSGCHINA are applied to reconstruct paleoclimate of Yangjie flora. MAT calculated by LMA and CLAMP is 22.0 ± 2.4°C and 20.0 ± 1.4°C, respectively, and GSP calculated by Single Linear Regression for Precipitation and PHYSGCHINA is 1521.9 ± 131.3 mm and 2084.7 ± 223.1 mm, respectively All methods agree that, both temperature and precipitation were higher in Late Pliocene than in nowadays. Meanwhile, precipitation parameters calculated by CLAMP gets high values. 6. Preliminary study of insect herbivory in Yangjie flora，Insect herbivory on leaves of Quercus preguyavaefolia Tao and Q. presenescens Zhou, two dominant species in Yangjie flora, is reported by the preliminary research. Each of these two species has a high diversity of insect damage. Among all damage types, margin feeding and surface feeding are most common, and skeletonization, piercing and sucking, and galling are less found. Most of these damage types belonge to the high host specialization (HS = 1). However, the proportion of leaves without insect damage in Q. presenescens is much higher than that in Q. preguyavaefolia. According to the log-log linear regression model, both Quercus preguyavaefolia and Q. presenescens have very high leaf mass per area (with 184.8 ± 6.7 g/m2 and 155.3 ± 10.7 g/m2, respectively). The high diversity of insect herbivory demonstrates a warm climate in the Late Pliocene of West Yunnan Province.","jscount":"1","jsurl":"/simple-search?field1=all&rpp=10&accurate=false&advanced=false&fq=location.comm.id%3A1&sort_by=2&isNonaffiliated=false&search_type=-1&query1=%25E7%25B3%25BB%25E7%25BB%259F%25E6%25BC%2594%25E5%258C%2596&order=desc&&fq=dc.project.title_filter%3AThe%5C+relationship%5C+between%5C+leaf%5C+physiognomy%5C+and%5C+climate%5C+is%5C+widely%5C+used%5C+to%5C+reconstruct%5C+paleoclimates%5C+of%5C+Cenozoic%5C+floras.%5C+Previous%5C+works%5C+demonstrate%5C+that%5C+LMA%5C+show%5C+regional%5C+constraints.%5C+Until%5C+now%2C%5C+no%5C+equation%5C+has%5C+been%5C+set%5C+up%5C+directly%5C+from%5C+Chinese%5C+forests.%5C+This%5C+relationship%5C+is%5C+exhaustively%5C+studied%5C+based%5C+on%5C+50%5C+samples%5C+from%5C+mesic%5C+to%5C+humid%5C+forests%5C+across%5C+China.%5C+Models%5C+including%5C+Leaf%5C+Margin%5C+Analysis%5C+%5C%28LMA%5C%29%2C%5C+Single%5C+Linear%5C+regression%5C+for%5C+Precipitation%2C%5C+and%5C+Climate%5C+Leaf%5C+Analysis%5C+Multivariate%5C+Program%5C+%5C%28CLAMP%5C%29%2C%5C+are%5C+set%5C+up%5C+and%5C+used%5C+to%5C+quantitatively%5C+reconstruct%5C+paleoclimates%5C+of%5C+Chinese%5C+Neogene%5C+floras.%5C+Meanwhile%2C%5C+a%5C+paleoflora%2C%5C+i.e.%2C%5C+Yangjie%5C+flora%2C%5C+which%5C+belongs%5C+to%5C+the%5C+Upper%5C+Pliocene%5C+Sanying%5C+formation%5C+in%5C+West%5C+Yunnan%5C+Province%2C%5C+is%5C+studied.%5C+The%5C+species%5C+assemblage%2C%5C+paleoclimate%5C+and%5C+paleoecology%5C+of%5C+Yangjie%5C+flora%5C+are%5C+discussed.%5C+Conclusions%5C+in%5C+this%5C+dissertation%5C+are%5C+as%5C+following%5C%3A%5C+1.%5C+Chinese%5C+leaf%5C+physiognomy%5C-climate%5C+models%5C+based%5C+on%5C+regression%5C+analyses%EF%BC%8CLMA%5C+is%5C+a%5C+widely%5C+used%5C+method%5C+that%5C+applies%5C+present%5C-day%5C+linear%5C+correlation%5C+between%5C+the%5C+proportion%5C+of%5C+woody%5C+dicotyledonous%5C+species%5C+with%5C+untoothed%5C+leaves%5C+%5C%28P%5C%29%5C+and%5C+mean%5C+annual%5C+temperature%5C+%5C%28MAT%5C%29%5C+to%5C+estimate%5C+paleotemperatures%5C+from%5C+fossil%5C+leaf%5C+floras.%5C+The%5C+Chinese%5C+data%5C+indicate%5C+that%5C+P%5C+shows%5C+a%5C+strong%5C+linear%5C+correlation%5C+with%5C+MAT%2C%5C+but%5C+the%5C+actual%5C+relationship%5C+is%5C+slightly%5C+different%5C+from%5C+those%5C+recognized%5C+from%5C+other%5C+regions.%5C+Among%5C+all%5C+currently%5C+used%5C+LMA%5C+equations%2C%5C+the%5C+one%5C+resulting%5C+from%5C+North%5C+and%5C+Central%5C+American%5C+and%5C+Japanese%5C+data%2C%5C+rather%5C+than%5C+the%5C+widely%5C+used%5C+East%5C+Asian%5C+LMA%5C+equation%2C%5C+yields%5C+the%5C+closest%5C+values%5C+to%5C+the%5C+actual%5C+MATs%5C+of%5C+the%5C+Chinese%5C+samples%5C+%5C%28mean%5C+absolute%5C+error%5C+%3D%5C+1.9%C2%B0C%5C%29.%5C+A%5C+new%5C+equation%5C+derived%5C+from%5C+the%5C+Chinese%5C+forests%5C+is%5C+therefore%5C+developed%2C%5C+where%5C+MAT%5C+%3D%5C+1.038%5C+%5C%2B%5C+27.6%5C+%C3%97%5C+P.%5C+This%5C+study%5C+not%5C+only%5C+demonstrates%5C+the%5C+similarity%5C+of%5C+the%5C+relationship%5C+between%5C+P%5C+and%5C+MAT%5C+in%5C+the%5C+Northern%5C+Hemisphere%2C%5C+but%5C+also%5C+improves%5C+the%5C+reliability%5C+of%5C+LMA%5C+for%5C+paleoclimate%5C+reconstructions%5C+of%5C+Chinese%5C+paleofloras.%5C+Besides%2C%5C+regression%5C+analyses%5C+are%5C+used%5C+to%5C+explore%5C+the%5C+relationship%5C+between%5C+leaf%5C+physiognomy%5C+and%5C+precipitation.%5C+In%5C+contrast%5C+to%5C+former%5C+studies%2C%5C+entire%5C+leaf%5C+margin%5C+shows%5C+the%5C+highest%5C+correlation%5C+with%5C+the%5C+Growing%5C+Season%5C+Precipitation%5C+%5C%28GSP%5C%29.%5C+A%5C+new%5C+equation%5C+is%5C+proposed%5C%3A%5C+GSP%5C+%3D%5C+228.0%5C+%5C%2B%5C+1707.0%5C+%C3%97%5C+P.%5C+2.%5C+The%5C+new%5C+calibrated%5C+CLAMP%5C+dataset%5C+%E2%80%93%5C+PHYSGCHINA%EF%BC%8CCLAMP%2C%5C+which%5C+is%5C+based%5C+on%5C+canonical%5C+correspondence%5C+analysis%2C%5C+is%5C+improved%5C+by%5C+the%5C+inclusion%5C+of%5C+50%5C+Chinese%5C+samples.%5C+The%5C+result%5C+indicates%5C+that%2C%5C+new%5C+calibrated%5C+data%5C+from%5C+50%5C+Chinese%5C+sample%5C+sites%5C+are%5C+situated%5C+away%5C+from%5C+the%5C+former%5C+144%5C+samples%5C+in%5C+the%5C+physiognomic%5C+space%2C%5C+which%5C+may%5C+be%5C+caused%5C+by%5C+the%5C+unique%5C+characters%5C+of%5C+leaf%5C+physiognomy%5C+under%5C+monsoon%5C+condition.%5C+Therefore%2C%5C+a%5C+new%5C+calibrated%5C+CLAMP%5C+dataset%2C%5C+i.e.%2C%5C+PHYSGCHINA%2C%5C+is%5C+set%5C+up%5C+based%5C+on%5C+50%5C+new%5C+Chinese%5C+samples%2C%5C+and%5C+144%5C+former%5C+samples%5C+from%5C+PHYSG3BRC.%5C+This%5C+new%5C+dataset%5C+could%5C+improve%5C+the%5C+accuracy%5C+of%5C+paleoclimate%5C+reconstructions%5C+for%5C+floras%5C+under%5C+the%5C+monsoon%5C+climate%5C+condition.%5C+When%5C+it%5C+is%5C+applied%5C+to%5C+Chinese%5C+Neogene%5C+floras%2C%5C+PHYSGCHINA%5C+could%5C+improve%5C+the%5C+accuracy%5C+of%5C+paleoclimate%5C+parameters%2C%5C+especially%5C+parameters%5C+related%5C+to%5C+precipitation.%5C+3.%5C+Paleoclimate%5C+reconstructions%5C+of%5C+Chinese%5C+Cenozoic%5C+floras%EF%BC%8CPaleoclimates%5C+of%5C+Chinese%5C+Cenozoic%5C+floras%5C+are%5C+reconstructed%5C+using%5C+leaf%5C+physiognomy%5C-%5C+climate%5C+models%5C+being%5C+set%5C+up%5C+in%5C+this%5C+study.%5C+The%5C+Chinese%5C+paleoclimate%5C+history%5C+in%5C+Eocene%5C+is%5C+similar%5C+to%5C+the%5C+trend%5C+from%5C+worldwide%5C+record.%5C+That%5C+is%2C%5C+hot%5C+climate%5C+presented%5C+in%5C+early%5C+Eocene%5C+and%5C+early%5C+Middle%5C+Eocene%2C%5C+and%5C+then%2C%5C+climate%5C+cooled%5C+down%5C+from%5C+late%5C+Middle%5C+Eocene%5C+to%5C+Late%5C+Eocene%5C+in%5C+China.%5C+Moreover%2C%5C+paleoclimates%5C+of%5C+two%5C+Late%5C+Miocene%5C+floras%5C+from%5C+Yunnan%5C+province%2C%5C+i.e.%2C%5C+Xiaolongtan%5C+flora%5C+and%5C+Bangmai%5C+flora%2C%5C+are%5C+reconstructed%5C+using%5C+different%5C+models.%5C+The%5C+results%5C+indicate%5C+that%2C%5C+temperature%5C+of%5C+Yunnan%5C+is%5C+slightly%5C+higher%5C+than%5C+that%5C+in%5C+nowadays%2C%5C+but%5C+the%5C+precipitation%5C+is%5C+much%5C+higher%5C+than%5C+that%5C+at%5C+present%5C+day%2C%5C+which%5C+may%5C+be%5C+caused%5C+by%5C+the%5C+uplift%5C+of%5C+Hengduan%5C+Mountain.%5C+4.%5C+Late%5C+Pliocene%5C+Yangjie%5C+flora%5C+in%5C+West%5C+Yunnan%5C+Province%2C%5C+China%EF%BC%8CA%5C+Late%5C+Pliocene%5C+Yangjie%5C+flora%5C+form%5C+Yongping%5C+County%2C%5C+western%5C+Yunnan%5C+province%2C%5C+which%5C+belongs%5C+to%5C+Sanying%5C+formation%2C%5C+is%5C+studied%5C+in%5C+this%5C+dissertation.%5C+Yangjie%5C+flora%5C+is%5C+dominated%5C+by%5C+Quercus%5C+sect.%5C+Heterobalanus%5C+%5C%28Oerst.%5C%29%5C+Menits.%5C+%5C%28evergreen%5C+sclerophyllous%5C+oaks%5C%29%2C%5C+and%5C+this%5C+forest%5C+type%5C+is%5C+quite%5C+common%5C+in%5C+SW%5C+China%5C+at%5C+present.%5C+The%5C+discovery%5C+of%5C+Yangjie%5C+flora%5C+provides%5C+evidence%5C+that%2C%5C+vegetations%5C+of%5C+Yunnan%5C+in%5C+Miocene%5C+were%5C+dominated%5C+by%5C+evergreen%5C+forests%2C%5C+and%5C+the%5C+dominant%5C+families%5C+were%5C+Fabaceae%2C%5C+Fagaceae%5C+and%5C+Lauraceae.%5C+In%5C+Pliocene%2C%5C+this%5C+vegetation%5C+type%5C+changed%5C+gradually%5C+to%5C+evergreen%5C+sclerophyllous%5C+oak%5C+forests.%5C+This%5C+vegetation%5C+change%5C+may%5C+have%5C+been%5C+caused%5C+by%5C+the%5C+uplift%5C+of%5C+Hengduan%5C+Mountain%5C+in%5C+Neogene.%5C+A%5C+polypodiaceous%5C+fern%2C%5C+Drynaria%5C+callispora%5C+sp.%5C+nov.%2C%5C+is%5C+described%5C+from%5C+the%5C+upper%5C+Pliocene%5C+Sanying%5C+Formation%5C+in%5C+western%5C+Yunnan%5C+Province%2C%5C+southwestern%5C+China.%5C+The%5C+species%5C+with%5C+well%5C-preserved%5C+pinnae%5C+and%5C+in%5C+situ%5C+spores%5C+is%5C+the%5C+first%5C+convincing%5C+Drynaria%5C+fossil%5C+record.%5C+Detailed%5C+morphological%5C+investigation%5C+reveals%5C+that%5C+D.%5C+callispora%5C+is%5C+characterized%5C+by%5C+1%5C%29%5C+pinnatifid%5C+fronds%5C+with%5C+entire%5C-margined%5C+pinnae%5C+having%5C+straight%5C+or%5C+zigzag%5C+secondary%5C+veins%5C%3B%5C+2%5C%29%5C+finer%5C+venation%5C+showing%5C+void%5C+quadrangular%5C+areoles%2C%5C+but%5C+occasionally%5C+with%5C+one%5C+unbranched%5C+veinlet%5C%3B%5C+3%5C%29%5C+one%5C+row%5C+of%5C+circular%5C+sori%5C+on%5C+each%5C+side%5C+of%5C+the%5C+strong%5C+primary%5C+vein%5C%3B%5C+and%5C+4%5C%29%5C+in%5C+situ%5C+spores%5C+with%5C+verrucate%5C+exospores%5C+elliptical%5C+in%5C+polar%5C+view%5C+and%5C+bean%5C-shaped%5C+in%5C+equatorial%5C+view.%5C+A%5C+morphological%5C+comparison%5C+shows%5C+that%5C+D.%5C+callispora%5C+is%5C+significantly%5C+different%5C+from%5C+all%5C+the%5C+fossil%5C+species%5C+previously%5C+identified%5C+as%5C+drynarioids.%5C+A%5C+phylogenetic%5C+analysis%5C+of%5C+D.%5C+callispora%5C+supports%5C+that%5C+the%5C+fossil%5C+is%5C+closely%5C+related%5C+to%5C+D.%5C+sinica%5C+Diels%5C+and%5C+D.%5C+mollis%5C+Bedd.%2C%5C+two%5C+extant%5C+species%5C+distributing%5C+in%5C+the%5C+Himalayas.%5C+The%5C+discovery%5C+of%5C+the%5C+new%5C+fern%5C+indicates%5C+that%5C+the%5C+genus%5C+Drynaria%5C+became%5C+diversified%5C+in%5C+its%5C+modern%5C+distribution%5C+region%5C+no%5C+later%5C+than%5C+the%5C+late%5C+Pliocene%5C+and%5C+had%5C+retained%5C+the%5C+similar%5C+ecology%5C+to%5C+that%5C+of%5C+many%5C+modern%5C+drynarioid%5C+ferns%5C+ever%5C+since.%5C+5.%5C+Paleoclimate%5C+reconstruction%5C+of%5C+Yangjie%5C+flora%EF%BC%8CLMA%2C%5C+Single%5C+Linear%5C+Regression%5C+for%5C+Precipitation%5C+and%5C+PHYSGCHINA%5C+are%5C+applied%5C+to%5C+reconstruct%5C+paleoclimate%5C+of%5C+Yangjie%5C+flora.%5C+MAT%5C+calculated%5C+by%5C+LMA%5C+and%5C+CLAMP%5C+is%5C+22.0%5C+%C2%B1%5C+2.4%C2%B0C%5C+and%5C+20.0%5C+%C2%B1%5C+1.4%C2%B0C%2C%5C+respectively%2C%5C+and%5C+GSP%5C+calculated%5C+by%5C+Single%5C+Linear%5C+Regression%5C+for%5C+Precipitation%5C+and%5C+PHYSGCHINA%5C+is%5C+1521.9%5C+%C2%B1%5C+131.3%5C+mm%5C+and%5C+2084.7%5C+%C2%B1%5C+223.1%5C+mm%2C%5C+respectively%5C+All%5C+methods%5C+agree%5C+that%2C%5C+both%5C+temperature%5C+and%5C+precipitation%5C+were%5C+higher%5C+in%5C+Late%5C+Pliocene%5C+than%5C+in%5C+nowadays.%5C+Meanwhile%2C%5C+precipitation%5C+parameters%5C+calculated%5C+by%5C+CLAMP%5C+gets%5C+high%5C+values.%5C+6.%5C+Preliminary%5C+study%5C+of%5C+insect%5C+herbivory%5C+in%5C+Yangjie%5C+flora%EF%BC%8CInsect%5C+herbivory%5C+on%5C+leaves%5C+of%5C+Quercus%5C+preguyavaefolia%5C+Tao%5C+and%5C+Q.%5C+presenescens%5C+Zhou%2C%5C+two%5C+dominant%5C+species%5C+in%5C+Yangjie%5C+flora%2C%5C+is%5C+reported%5C+by%5C+the%5C+preliminary%5C+research.%5C+Each%5C+of%5C+these%5C+two%5C+species%5C+has%5C+a%5C+high%5C+diversity%5C+of%5C+insect%5C+damage.%5C+Among%5C+all%5C+damage%5C+types%2C%5C+margin%5C+feeding%5C+and%5C+surface%5C+feeding%5C+are%5C+most%5C+common%2C%5C+and%5C+skeletonization%2C%5C+piercing%5C+and%5C+sucking%2C%5C+and%5C+galling%5C+are%5C+less%5C+found.%5C+Most%5C+of%5C+these%5C+damage%5C+types%5C+belonge%5C+to%5C+the%5C+high%5C+host%5C+specialization%5C+%5C%28HS%5C+%3D%5C+1%5C%29.%5C+However%2C%5C+the%5C+proportion%5C+of%5C+leaves%5C+without%5C+insect%5C+damage%5C+in%5C+Q.%5C+presenescens%5C+is%5C+much%5C+higher%5C+than%5C+that%5C+in%5C+Q.%5C+preguyavaefolia.%5C+According%5C+to%5C+the%5C+log%5C-log%5C+linear%5C+regression%5C+model%2C%5C+both%5C+Quercus%5C+preguyavaefolia%5C+and%5C+Q.%5C+presenescens%5C+have%5C+very%5C+high%5C+leaf%5C+mass%5C+per%5C+area%5C+%5C%28with%5C+184.8%5C+%C2%B1%5C+6.7%5C+g%5C%2Fm2%5C+and%5C+155.3%5C+%C2%B1%5C+10.7%5C+g%5C%2Fm2%2C%5C+respectively%5C%29.%5C+The%5C+high%5C+diversity%5C+of%5C+insect%5C+herbivory%5C+demonstrates%5C+a%5C+warm%5C+climate%5C+in%5C+the%5C+Late%5C+Pliocene%5C+of%5C+West%5C+Yunnan%5C+Province."},{"jsname":"Through investigating sympatric distribution of Rhododendron irroratum, examing the variation of floral characters and sequencing the ITS and other chloroplast segements, we find that (1) R. irroratum might be of hybrid origin, with its maternal parent R. delavayi or R. decorum. (2) The ancestral haplotype of R. irroratum might be identical to that of R. decorum, and it is under ongoing introgression from R. delavayi. 1. The natural distribution, Seven distribution sites of R. irroratum in Guizhou and Yunnan province were investigated. The result shows that R. irroratum is sympatric with R. delavayi, R. decorum and R. agastum. R. delavayi is widespread across the above-mentioned seven sites, whereas R. agastum is scarce in DaPingDi, HuaDianBa and HeQing sites. R. irroratum and R. agastum distribute at the higher elevation compared to that of R. decorum, while R. delavayi is of widespread distribution across both regions of R. decorum and R. irroratum.2. Floral variation of R. irroratum among populations, The floral characters remain vary within and among populations except for the stamen number and the petal number. Seven floral characters correlates with each other among populations, of 28 different combinations, 26 reveal significant correlation, and 23 extremely significant correlation. The PCA analysis shows that the first two components account for 52.18% of the total variation. The dendrogram tree is divided into four main parts, roughly representing the respective populations, which is constructed using 22 R. irroratum individuals. 3. Putative Development and the transferability test of SSR makers, Fifteen microsatellite loci were developed and characterized in R. delavayi. The average allele number of these microsatellites was 4 per locus, ranging from 3 to 6. The ranges of expected (HE) and observed (HO) heterozygosities were 0.0365-0.7091 and 0.0263-0.9512, respectively. Seven loci (R-111, R-112, R-147, R-299, R-320, R-335, and R-544) deviated significantly from the HWE (P﹤0.01). No significant linkage disequilibrium was detected between locus pairs except for three locus pairs: R-299 and R-544, R-166 and R-320, R-111 and R-320. Cross-species amplification in R. agastum, R. decorum, and R. irroratum showed that a subset of these markers holds promise for congeneric species study.4. ITS, matK, trnH-psbA and rbcL sequences. R. delavayi has six sites different from that of R. decorum in its ITS region, whereas R. agastum reveals double peaks at the corresponding sites and R. irroratum is identical to that of R. delavayi. The chloroplast segements show that some R. irroratum individuals share the same haplotype with R. delavayi and others share them with R. decorum.","jscount":"1","jsurl":"/simple-search?field1=all&rpp=10&accurate=false&advanced=false&fq=location.comm.id%3A1&sort_by=2&isNonaffiliated=false&search_type=-1&query1=%25E7%25B3%25BB%25E7%25BB%259F%25E6%25BC%2594%25E5%258C%2596&order=desc&&fq=dc.project.title_filter%3AThrough%5C+investigating%5C+sympatric%5C+distribution%5C+of%5C+Rhododendron%5C+irroratum%2C%5C+examing%5C+the%5C+variation%5C+of%5C+floral%5C+characters%5C+and%5C+sequencing%5C+the%5C+ITS%5C+and%5C+other%5C+chloroplast%5C+segements%2C%5C+we%5C+find%5C+that%5C+%5C%281%5C%29%5C+R.%5C+irroratum%5C+might%5C+be%5C+of%5C+hybrid%5C+origin%2C%5C+with%5C+its%5C+maternal%5C+parent%5C+R.%5C+delavayi%5C+or%5C+R.%5C+decorum.%5C+%5C%282%5C%29%5C+The%5C+ancestral%5C+haplotype%5C+of%5C+R.%5C+irroratum%5C+might%5C+be%5C+identical%5C+to%5C+that%5C+of%5C+R.%5C+decorum%2C%5C+and%5C+it%5C+is%5C+under%5C+ongoing%5C+introgression%5C+from%5C+R.%5C+delavayi.%5C+1.%5C+The%5C+natural%5C+distribution%2C%5C+Seven%5C+distribution%5C+sites%5C+of%5C+R.%5C+irroratum%5C+in%5C+Guizhou%5C+and%5C+Yunnan%5C+province%5C+were%5C+investigated.%5C+The%5C+result%5C+shows%5C+that%5C+R.%5C+irroratum%5C+is%5C+sympatric%5C+with%5C+R.%5C+delavayi%2C%5C+R.%5C+decorum%5C+and%5C+R.%5C+agastum.%5C+R.%5C+delavayi%5C+is%5C+widespread%5C+across%5C+the%5C+above%5C-mentioned%5C+seven%5C+sites%2C%5C+whereas%5C+R.%5C+agastum%5C+is%5C+scarce%5C+in%5C+DaPingDi%2C%5C+HuaDianBa%5C+and%5C+HeQing%5C+sites.%5C+R.%5C+irroratum%5C+and%5C+R.%5C+agastum%5C+distribute%5C+at%5C+the%5C+higher%5C+elevation%5C+compared%5C+to%5C+that%5C+of%5C+R.%5C+decorum%2C%5C+while%5C+R.%5C+delavayi%5C+is%5C+of%5C+widespread%5C+distribution%5C+across%5C+both%5C+regions%5C+of%5C+R.%5C+decorum%5C+and%5C+R.%5C+irroratum.2.%5C+Floral%5C+variation%5C+of%5C+R.%5C+irroratum%5C+among%5C+populations%2C%5C+The%5C+floral%5C+characters%5C+remain%5C+vary%5C+within%5C+and%5C+among%5C+populations%5C+except%5C+for%5C+the%5C+stamen%5C+number%5C+and%5C+the%5C+petal%5C+number.%5C+Seven%5C+floral%5C+characters%5C+correlates%5C+with%5C+each%5C+other%5C+among%5C+populations%2C%5C+of%5C+28%5C+different%5C+combinations%2C%5C+26%5C+reveal%5C+significant%5C+correlation%2C%5C+and%5C+23%5C+extremely%5C+significant%5C+correlation.%5C+The%5C+PCA%5C+analysis%5C+shows%5C+that%5C+the%5C+first%5C+two%5C+components%5C+account%5C+for%5C+52.18%25%5C+of%5C+the%5C+total%5C+variation.%5C+The%5C+dendrogram%5C+tree%5C+is%5C+divided%5C+into%5C+four%5C+main%5C+parts%2C%5C+roughly%5C+representing%5C+the%5C+respective%5C+populations%2C%5C+which%5C+is%5C+constructed%5C+using%5C+22%5C+R.%5C+irroratum%5C+individuals.%5C+3.%5C+Putative%5C+Development%5C+and%5C+the%5C+transferability%5C+test%5C+of%5C+SSR%5C+makers%2C%5C+Fifteen%5C+microsatellite%5C+loci%5C+were%5C+developed%5C+and%5C+characterized%5C+in%5C+R.%5C+delavayi.%5C+The%5C+average%5C+allele%5C+number%5C+of%5C+these%5C+microsatellites%5C+was%5C+4%5C+per%5C+locus%2C%5C+ranging%5C+from%5C+3%5C+to%5C+6.%5C+The%5C+ranges%5C+of%5C+expected%5C+%5C%28HE%5C%29%5C+and%5C+observed%5C+%5C%28HO%5C%29%5C+heterozygosities%5C+were%5C+0.0365%5C-0.7091%5C+and%5C+0.0263%5C-0.9512%2C%5C+respectively.%5C+Seven%5C+loci%5C+%5C%28R%5C-111%2C%5C+R%5C-112%2C%5C+R%5C-147%2C%5C+R%5C-299%2C%5C+R%5C-320%2C%5C+R%5C-335%2C%5C+and%5C+R%5C-544%5C%29%5C+deviated%5C+significantly%5C+from%5C+the%5C+HWE%5C+%5C%28P%EF%B9%A40.01%5C%29.%5C+No%5C+significant%5C+linkage%5C+disequilibrium%5C+was%5C+detected%5C+between%5C+locus%5C+pairs%5C+except%5C+for%5C+three%5C+locus%5C+pairs%5C%3A%5C+R%5C-299%5C+and%5C+R%5C-544%2C%5C+R%5C-166%5C+and%5C+R%5C-320%2C%5C+R%5C-111%5C+and%5C+R%5C-320.%5C+Cross%5C-species%5C+amplification%5C+in%5C+R.%5C+agastum%2C%5C+R.%5C+decorum%2C%5C+and%5C+R.%5C+irroratum%5C+showed%5C+that%5C+a%5C+subset%5C+of%5C+these%5C+markers%5C+holds%5C+promise%5C+for%5C+congeneric%5C+species%5C+study.4.%5C+ITS%2C%5C+matK%2C%5C+trnH%5C-psbA%5C+and%5C+rbcL%5C+sequences.%5C+R.%5C+delavayi%5C+has%5C+six%5C+sites%5C+different%5C+from%5C+that%5C+of%5C+R.%5C+decorum%5C+in%5C+its%5C+ITS%5C+region%2C%5C+whereas%5C+R.%5C+agastum%5C+reveals%5C+double%5C+peaks%5C+at%5C+the%5C+corresponding%5C+sites%5C+and%5C+R.%5C+irroratum%5C+is%5C+identical%5C+to%5C+that%5C+of%5C+R.%5C+delavayi.%5C+The%5C+chloroplast%5C+segements%5C+show%5C+that%5C+some%5C+R.%5C+irroratum%5C+individuals%5C+share%5C+the%5C+same%5C+haplotype%5C+with%5C+R.%5C+delavayi%5C+and%5C+others%5C+share%5C+them%5C+with%5C+R.%5C+decorum."},{"jsname":"Trigonobalanus doichangensis is an endangered plant. In this paper, the megasporogenesis and development of female gametophyte, seed morphological traits and seed germination, seed conservation, micropropagation and acclimatization of this species were studied. Combined with the published results of cytology, molecular genetics and other researches,the mechanisms of extinction, basic biology and technology of germplasm conservation and acclimatization of T. doichangensis were discussed. The main results are summarized as follows:1. Megasporogenesis and development of female gametophyte，Stamens exist under the stigma of T. doichangensis, and the pollen is aborted on the later development stage of pistil, therefore, the pistillate flower in function is hermaphrodite flower in morphology. The ovule is anatropous, bitegmic and crassinucellate. The primary archesporium is hypodermal and single-celled and the sporogenous cell of the nucellus functions directly as a megaspore mother cell which goes meiosis to form a linear tetrad. The chalazal megaspore of the tetrad is functional. The development of embryo sac conforms to the polygonum type. There are six ovules in the ovary of T. doichangensis, and only one develops into a seed in normal fruits. In the process of megasporogenesis and development of female gametophyte, there are several links of abortion, and 93.3% of mature embryo sacs is aborted.2. Morphological characters and germination of seeds，Most of the variation occurred among individual trees within populations in seed morphological traits (length, width and 1000-seed weight) and germination-related indices (germination percentage, germination index and vigor index). In addition, the variation in percentage of well-developed seeds among populations and among individual trees within populations is equal, each accounting for 48%. Each of seed morphological traits has significantly positive correlation with each other (p < 0.01), but they have no significant correlation with percentage of well-developed seeds and germination-related indices. In the same batch of seeds of T. doichangensis, there are light-colored and dark-colored seed coats, and development of light-colored seeds is significantly poorer than that of dark-colored seeds.The sensitivity of seeds to high temperature varys in different stages of seed imbibition. In each stage, heat acclimatization don’t increase germination percentage, germination index and fresh weight of seedlings. If the distilled water is substituted by solution of SA during seed imbibition, seed germination and germination index after heat shock are not significantly different from control, but they are significantly higher than that of other treatments. Moreover, when the seeds are treatmented with SA, the fresh weight of seedlings is significantly higher than that of control and other treatments.3. Seed conservation，Seeds of T. doichangensis belong to orthodox seeds which can tolerate certain level of dehydration. The condition of low temperature and low water content of seeds is conducive to seed conservation.Germination of fresh seeds shows significant variation among populations, howerer, germination of the seeds after storage for one year in room temperature shows no significant variation among populations.High temperature and high relative humidity damages the seeds more severely than high temperature does. In addition, low water content of seeds enable the seeds to be more tolerant to high temperature.The electrical conductivity, dehydrogenase activity and germination percentage have no significant correlation with each other.4. Micropropagation and in vitro conservation，Cotyledonary nodes are a kind of efficient explants. Low salt media are conducive to shoot propagation and root induction.The maximum multiplication rate (20-25 shoots/explant within 4 months) is achieved on quarter-strength Murashige and Skoog (1/4 MS) medium supplemented with 1 mg·L-1 6-benzyladenine (6-BA) and 0.05 mg·L-1 α-naphthaleneacetic acid (NAA).Rooting is promoted by auxins, however, IBA alone or low concentrations of NAA are preferable due to small amount of callus induced. The research has established an efficient protocol for micropropagation of T. doichangensis, and it provides technology support for in vitro conservation of special germplasm of the species.5. Acclimatization，Quercus variabilis, Cyclobalanopsis glaucoides and T. doichangensis belong to the family of Fagaceae, and the natural distribution ranges of the 3 species are decreasing in turn. The research suggests that the ranges of temperature tolerance of the 3 species are decreasing corresponding to their distribution ranges.The high and low semi-lethal temperature of one-year old T. doichangensis is 49.5℃ and -5℃ respectively. It suggests that T. doichangensis has a wide range of basic temperature tolerance. Short-term heat and cold acclimatization cannot expand the range of temperature tolerance. It can be inferred that T. doichangensis may lack induced tolerance to temperature. Under proper conditions, ABA can increase the cold tolerance, and SA can increase the heat tolerance of leaf discs of T. doichangensis.","jscount":"1","jsurl":"/simple-search?field1=all&rpp=10&accurate=false&advanced=false&fq=location.comm.id%3A1&sort_by=2&isNonaffiliated=false&search_type=-1&query1=%25E7%25B3%25BB%25E7%25BB%259F%25E6%25BC%2594%25E5%258C%2596&order=desc&&fq=dc.project.title_filter%3ATrigonobalanus%5C+doichangensis%5C+is%5C+an%5C+endangered%5C+plant.%5C+In%5C+this%5C+paper%2C%5C+the%5C+megasporogenesis%5C+and%5C+development%5C+of%5C+female%5C+gametophyte%2C%5C+seed%5C+morphological%5C+traits%5C+and%5C+seed%5C+germination%2C%5C+seed%5C+conservation%2C%5C+micropropagation%5C+and%5C+acclimatization%5C+of%5C+this%5C+species%5C+were%5C+studied.%5C+Combined%5C+with%5C+the%5C+published%5C+results%5C+of%5C+cytology%2C%5C+molecular%5C+genetics%5C+and%5C+other%5C+researches%2Cthe%5C+mechanisms%5C+of%5C+extinction%2C%5C+basic%5C+biology%5C+and%5C+technology%5C+of%5C+germplasm%5C+conservation%5C+and%5C+acclimatization%5C+of%5C+T.%5C+doichangensis%5C+were%5C+discussed.%5C+The%5C+main%5C+results%5C+are%5C+summarized%5C+as%5C+follows%5C%3A1.%5C+Megasporogenesis%5C+and%5C+development%5C+of%5C+female%5C+gametophyte%EF%BC%8CStamens%5C+exist%5C+under%5C+the%5C+stigma%5C+of%5C+T.%5C+doichangensis%2C%5C+and%5C+the%5C+pollen%5C+is%5C+aborted%5C+on%5C+the%5C+later%5C+development%5C+stage%5C+of%5C+pistil%2C%5C+therefore%2C%5C+the%5C+pistillate%5C+flower%5C+in%5C+function%5C+is%5C+hermaphrodite%5C+flower%5C+in%5C+morphology.%5C+The%5C+ovule%5C+is%5C+anatropous%2C%5C+bitegmic%5C+and%5C+crassinucellate.%5C+The%5C+primary%5C+archesporium%5C+is%5C+hypodermal%5C+and%5C+single%5C-celled%5C+and%5C+the%5C+sporogenous%5C+cell%5C+of%5C+the%5C+nucellus%5C+functions%5C+directly%5C+as%5C+a%5C+megaspore%5C+mother%5C+cell%5C+which%5C+goes%5C+meiosis%5C+to%5C+form%5C+a%5C+linear%5C+tetrad.%5C+The%5C+chalazal%5C+megaspore%5C+of%5C+the%5C+tetrad%5C+is%5C+functional.%5C+The%5C+development%5C+of%5C+embryo%5C+sac%5C+conforms%5C+to%5C+the%5C+polygonum%5C+type.%5C+There%5C+are%5C+six%5C+ovules%5C+in%5C+the%5C+ovary%5C+of%5C+T.%5C+doichangensis%2C%5C+and%5C+only%5C+one%5C+develops%5C+into%5C+a%5C+seed%5C+in%5C+normal%5C+fruits.%5C+In%5C+the%5C+process%5C+of%5C+megasporogenesis%5C+and%5C+development%5C+of%5C+female%5C+gametophyte%2C%5C+there%5C+are%5C+several%5C+links%5C+of%5C+abortion%2C%5C+and%5C+93.3%25%5C+of%5C+mature%5C+embryo%5C+sacs%5C+is%5C+aborted.2.%5C+Morphological%5C+characters%5C+and%5C+germination%5C+of%5C+seeds%EF%BC%8CMost%5C+of%5C+the%5C+variation%5C+occurred%5C+among%5C+individual%5C+trees%5C+within%5C+populations%5C+in%5C+seed%5C+morphological%5C+traits%5C+%5C%28length%2C%5C+width%5C+and%5C+1000%5C-seed%5C+weight%5C%29%5C+and%5C+germination%5C-related%5C+indices%5C+%5C%28germination%5C+percentage%2C%5C+germination%5C+index%5C+and%5C+vigor%5C+index%5C%29.%5C+In%5C+addition%2C%5C+the%5C+variation%5C+in%5C+percentage%5C+of%5C+well%5C-developed%5C+seeds%5C+among%5C+populations%5C+and%5C+among%5C+individual%5C+trees%5C+within%5C+populations%5C+is%5C+equal%2C%5C+each%5C+accounting%5C+for%5C+48%25.%5C+Each%5C+of%5C+seed%5C+morphological%5C+traits%5C+has%5C+significantly%5C+positive%5C+correlation%5C+with%5C+each%5C+other%5C+%5C%28p%5C+%3C%5C+0.01%5C%29%2C%5C+but%5C+they%5C+have%5C+no%5C+significant%5C+correlation%5C+with%5C+percentage%5C+of%5C+well%5C-developed%5C+seeds%5C+and%5C+germination%5C-related%5C+indices.%5C+In%5C+the%5C+same%5C+batch%5C+of%5C+seeds%5C+of%5C+T.%5C+doichangensis%2C%5C+there%5C+are%5C+light%5C-colored%5C+and%5C+dark%5C-colored%5C+seed%5C+coats%2C%5C+and%5C+development%5C+of%5C+light%5C-colored%5C+seeds%5C+is%5C+significantly%5C+poorer%5C+than%5C+that%5C+of%5C+dark%5C-colored%5C+seeds.The%5C+sensitivity%5C+of%5C+seeds%5C+to%5C+high%5C+temperature%5C+varys%5C+in%5C+different%5C+stages%5C+of%5C+seed%5C+imbibition.%5C+In%5C+each%5C+stage%2C%5C+heat%5C+acclimatization%5C+don%E2%80%99t%5C+increase%5C+germination%5C+percentage%2C%5C+germination%5C+index%5C+and%5C+fresh%5C+weight%5C+of%5C+seedlings.%5C+If%5C+the%5C+distilled%5C+water%5C+is%5C+substituted%5C+by%5C+solution%5C+of%5C+SA%5C+during%5C+seed%5C+imbibition%2C%5C+seed%5C+germination%5C+and%5C+germination%5C+index%5C+after%5C+heat%5C+shock%5C+are%5C+not%5C+significantly%5C+different%5C+from%5C+control%2C%5C+but%5C+they%5C+are%5C+significantly%5C+higher%5C+than%5C+that%5C+of%5C+other%5C+treatments.%5C+Moreover%2C%5C+when%5C+the%5C+seeds%5C+are%5C+treatmented%5C+with%5C+SA%2C%5C+the%5C+fresh%5C+weight%5C+of%5C+seedlings%5C+is%5C+significantly%5C+higher%5C+than%5C+that%5C+of%5C+control%5C+and%5C+other%5C+treatments.3.%5C+Seed%5C+conservation%EF%BC%8CSeeds%5C+of%5C+T.%5C+doichangensis%5C+belong%5C+to%5C+orthodox%5C+seeds%5C+which%5C+can%5C+tolerate%5C+certain%5C+level%5C+of%5C+dehydration.%5C+The%5C+condition%5C+of%5C+low%5C+temperature%5C+and%5C+low%5C+water%5C+content%5C+of%5C+seeds%5C+is%5C+conducive%5C+to%5C+seed%5C+conservation.Germination%5C+of%5C+fresh%5C+seeds%5C+shows%5C+significant%5C+variation%5C+among%5C+populations%2C%5C+howerer%2C%5C+germination%5C+of%5C+the%5C+seeds%5C+after%5C+storage%5C+for%5C+one%5C+year%5C+in%5C+room%5C+temperature%5C+shows%5C+no%5C+significant%5C+variation%5C+among%5C+populations.High%5C+temperature%5C+and%5C+high%5C+relative%5C+humidity%5C+damages%5C+the%5C+seeds%5C+more%5C+severely%5C+than%5C+high%5C+temperature%5C+does.%5C+In%5C+addition%2C%5C+low%5C+water%5C+content%5C+of%5C+seeds%5C+enable%5C+the%5C+seeds%5C+to%5C+be%5C+more%5C+tolerant%5C+to%5C+high%5C+temperature.The%5C+electrical%5C+conductivity%2C%5C+dehydrogenase%5C+activity%5C+and%5C+germination%5C+percentage%5C+have%5C+no%5C+significant%5C+correlation%5C+with%5C+each%5C+other.4.%5C+Micropropagation%5C+and%5C+in%5C+vitro%5C+conservation%EF%BC%8CCotyledonary%5C+nodes%5C+are%5C+a%5C+kind%5C+of%5C+efficient%5C+explants.%5C+Low%5C+salt%5C+media%5C+are%5C+conducive%5C+to%5C+shoot%5C+propagation%5C+and%5C+root%5C+induction.The%5C+maximum%5C+multiplication%5C+rate%5C+%5C%2820%5C-25%5C+shoots%5C%2Fexplant%5C+within%5C+4%5C+months%5C%29%5C+is%5C+achieved%5C+on%5C+quarter%5C-strength%5C+Murashige%5C+and%5C+Skoog%5C+%5C%281%5C%2F4%5C+MS%5C%29%5C+medium%5C+supplemented%5C+with%5C+1%5C+mg%C2%B7L%5C-1%5C+6%5C-benzyladenine%5C+%5C%286%5C-BA%5C%29%5C+and%5C+0.05%5C+mg%C2%B7L%5C-1%5C+%CE%B1%5C-naphthaleneacetic%5C+acid%5C+%5C%28NAA%5C%29.Rooting%5C+is%5C+promoted%5C+by%5C+auxins%2C%5C+however%2C%5C+IBA%5C+alone%5C+or%5C+low%5C+concentrations%5C+of%5C+NAA%5C+are%5C+preferable%5C+due%5C+to%5C+small%5C+amount%5C+of%5C+callus%5C+induced.%5C+The%5C+research%5C+has%5C+established%5C+an%5C+efficient%5C+protocol%5C+for%5C+micropropagation%5C+of%5C+T.%5C+doichangensis%2C%5C+and%5C+it%5C+provides%5C+technology%5C+support%5C+for%5C+in%5C+vitro%5C+conservation%5C+of%5C+special%5C+germplasm%5C+of%5C+the%5C+species.5.%5C+Acclimatization%EF%BC%8CQuercus%5C+variabilis%2C%5C+Cyclobalanopsis%5C+glaucoides%5C+and%5C+T.%5C+doichangensis%5C+belong%5C+to%5C+the%5C+family%5C+of%5C+Fagaceae%2C%5C+and%5C+the%5C+natural%5C+distribution%5C+ranges%5C+of%5C+the%5C+3%5C+species%5C+are%5C+decreasing%5C+in%5C+turn.%5C+The%5C+research%5C+suggests%5C+that%5C+the%5C+ranges%5C+of%5C+temperature%5C+tolerance%5C+of%5C+the%5C+3%5C+species%5C+are%5C+decreasing%5C+corresponding%5C+to%5C+their%5C+distribution%5C+ranges.The%5C+high%5C+and%5C+low%5C+semi%5C-lethal%5C+temperature%5C+of%5C+one%5C-year%5C+old%5C+T.%5C+doichangensis%5C+is%5C+49.5%E2%84%83%5C+and%5C+%5C-5%E2%84%83%5C+respectively.%5C+It%5C+suggests%5C+that%5C+T.%5C+doichangensis%5C+has%5C+a%5C+wide%5C+range%5C+of%5C+basic%5C+temperature%5C+tolerance.%5C+Short%5C-term%5C+heat%5C+and%5C+cold%5C+acclimatization%5C+cannot%5C+expand%5C+the%5C+range%5C+of%5C+temperature%5C+tolerance.%5C+It%5C+can%5C+be%5C+inferred%5C+that%5C+T.%5C+doichangensis%5C+may%5C+lack%5C+induced%5C+tolerance%5C+to%5C+temperature.%5C+Under%5C+proper%5C+conditions%2C%5C+ABA%5C+can%5C+increase%5C+the%5C+cold%5C+tolerance%2C%5C+and%5C+SA%5C+can%5C+increase%5C+the%5C+heat%5C+tolerance%5C+of%5C+leaf%5C+discs%5C+of%5C+T.%5C+doichangensis."},{"jsname":"Tupistra pingbianensis J. L. Huang & X. Z. Liu, is a newly described perennial herb narrowly distributed in South-east Yunnan, China. It belongs to genera Tupistra Ker Gawler(Liliaceae). It usually occurs on outcrops of bare rock, or occasionally as an epiphyte on tree trunks covered with humus and moss. T. pingbianensis is unusual in that it exhibits rarity according to three different ways of measuring rarity, i.e. it has a small geographical range, is a habitat specialist, and always has low abundance where it occurs. Because of this, T. pingbianensis has been listed as an endangered species and catalogued in the Chinese Species Red List. In order to discuss the causes of rarity of T. pingbianensis, the multidisciplinary investigations of the seed and seedling establishment, cytology, breeding system, and population genetic structure of the endangered T. pingbianensis were performed in this thesis. Besides, the corresponding conservation strategies were also proposed according to the above-mentioned. The main results are summarized as follows:1. Biological traits of T. pingbianensis,T. pingbianensis is a perennial herbaceous with a creeping rhizome, thick basal leaves, and an inflorescence that is a terminal spike. Florescence is from November to December, while fruiting occurs between November and December in the next year. Reproduction and spread also occurs clonally via rhizomes, most seeds simply fall from the mother plant and germinate where they land. It occurs on outcrops of bare rock, or occasionally as an epiphyte on tree trunks covered with humus and moss, which are naturally rare habitat. Throughout its small geographical range, T. pingbianensis occurs as discrete, small populations size. 2. Seed germination traits of T. pingbianensis,Seed morphology was observed and effects of substrates soil types, light, sowing depth on germination percentage of the species T. pingbianensis were investigated primarily. The results showed that the average seed size was (1.17±0.02) cm × (0.79±0.01) cm × (0.77±0.01) cm (length × width × thickness), per-hundred-seed-weight was about 35.03±0.12g. Among the three different substrates soil types and sowing depths, seeds of T. pingbianensis germinate best in alkalescence soil and shallow sowing depth (2cm). It could germinate in the both light and dark, but the germination rate can be accelerated by light obviously. Its seed has high germination rate not just in greenhouse, but also in the field. We considered that this is a good strategy to expand its population in the special habit.3. Karyotype evolution status of T. pingbianensis,The karyotype of total eight species in Campylandra, Tupistra and Aspidistra from China were reported. Considering Tupistra has the similar morphological character with Campylandra but resemble Aspidistra in karyotype. The results support the earlier study that Tupistra is a transition between Compylandra and Aspidistra. Besides, our results also showes that the T. pingbianensis and T. fungilliformis has higher karyotype asymmetry than other species in this genera, which means these species have higher karyotype evolution status. 4. Reproduction ecology of T. pingbianensis, The flower phenology, pollinators of T. pingbianensis were documented herein. We also examined the breeding system of T. pingbianensis and seed fitness traits to determine what forms of pollination and mating occur in this naturally rare species, and is there evidence of inbreeding depression in its populations. The results shows that the flowers opened 10-15 days, which suggest stigma and pollen can keep high vitality for a long time (10-15 days). The only pollinators observed on T. pingbianensis flowers were ants (Aphaenogaster smythiesii Forel,Formicidea), springtail (Hypogastrura sp., Hypogastruridae, Collembola) and one species of beetles (Anomala corpulenta Motsch, Rutelidae). These pollinators generally have restricted movement capacities and hence promote geitonogamy or mating between individuals in close proximity within populations. The results of out crossing index (OCI) pollination experiments in our study suggest that T. pingbianensis has an animal-pollinated, mixed selfing and outcrossing breeding systems. However, a pollination experiment also fail to detect significant inbreeding depression upon F1 fruit set, seed weight and germinate rate fitness-traits. Since naturally rare species T. pingbianensis is not seriously genetically impoverished and likely to have adapted to tolerating a high level of inbreeding early in its history. 5. Conservation genetic of T. pingbianensis, The levels and partitioning of genetic diversity were investigated in Tupistra pingbianensis. Here genetic diversity and patterns of genetic variation within and among 11 populations were analyzed using AFLP markers with 97 individuals across its whole geographical range. High levels of genetic variation were revealed both at the species level (P99 = 96.012%; Ht = 0.302) and at the population level (P99 = 51.41%; Hs = 0.224). Strong genetic differentiation among populations was also detected (FST = 0.2961; ⍬Ⅱ= 0.281), which corresponded to results reported for typical animal-pollinated, mixed selfing and outcrossing plant species. Special habitat and its life history traits may play an important role in shaping the genetic diversity and the genetic structure of this species. Based on the special habitat in T. pingbianensis, the most suitable strategy for its conservation is the protection of its habitat. Moreover, given the observed strong genetic differentiation among populations of T. pingbianensis, the preservation of genetic diversity in this species will require the protection of many populations as possible to maintain the current levels of genetic variability.","jscount":"1","jsurl":"/simple-search?field1=all&rpp=10&accurate=false&advanced=false&fq=location.comm.id%3A1&sort_by=2&isNonaffiliated=false&search_type=-1&query1=%25E7%25B3%25BB%25E7%25BB%259F%25E6%25BC%2594%25E5%258C%2596&order=desc&&fq=dc.project.title_filter%3ATupistra%5C+pingbianensis%5C+J.%5C+L.%5C+Huang%5C+%5C%26%5C+X.%5C+Z.%5C+Liu%2C%5C+is%5C+a%5C+newly%5C+described%5C+perennial%5C+herb%5C+narrowly%5C+distributed%5C+in%5C+South%5C-east%5C+Yunnan%2C%5C+China.%5C+It%5C+belongs%5C+to%5C+genera%5C+Tupistra%5C+Ker%5C+Gawler%5C%28Liliaceae%5C%29.%5C+It%5C+usually%5C+occurs%5C+on%5C+outcrops%5C+of%5C+bare%5C+rock%2C%5C+or%5C+occasionally%5C+as%5C+an%5C+epiphyte%5C+on%5C+tree%5C+trunks%5C+covered%5C+with%5C+humus%5C+and%5C+moss.%5C+T.%5C+pingbianensis%5C+is%5C+unusual%5C+in%5C+that%5C+it%5C+exhibits%5C+rarity%5C+according%5C+to%5C+three%5C+different%5C+ways%5C+of%5C+measuring%5C+rarity%2C%5C+i.e.%5C+it%5C+has%5C+a%5C+small%5C+geographical%5C+range%2C%5C+is%5C+a%5C+habitat%5C+specialist%2C%5C+and%5C+always%5C+has%5C+low%5C+abundance%5C+where%5C+it%5C+occurs.%5C+Because%5C+of%5C+this%2C%5C+T.%5C+pingbianensis%5C+has%5C+been%5C+listed%5C+as%5C+an%5C+endangered%5C+species%5C+and%5C+catalogued%5C+in%5C+the%5C+Chinese%5C+Species%5C+Red%5C+List.%5C+In%5C+order%5C+to%5C+discuss%5C+the%5C+causes%5C+of%5C+rarity%5C+of%5C+T.%5C+pingbianensis%2C%5C+the%5C+multidisciplinary%5C+investigations%5C+of%5C+the%5C+seed%5C+and%5C+seedling%5C+establishment%2C%5C+cytology%2C%5C+breeding%5C+system%2C%5C+and%5C+population%5C+genetic%5C+structure%5C+of%5C+the%5C+endangered%5C+T.%5C+pingbianensis%5C+were%5C+performed%5C+in%5C+this%5C+thesis.%5C+Besides%2C%5C+the%5C+corresponding%5C+conservation%5C+strategies%5C+were%5C+also%5C+proposed%5C+according%5C+to%5C+the%5C+above%5C-mentioned.%5C+The%5C+main%5C+results%5C+are%5C+summarized%5C+as%5C+follows%5C%3A1.%5C+Biological%5C+traits%5C+of%5C+T.%5C+pingbianensis%2CT.%5C+pingbianensis%5C+is%5C+a%5C+perennial%5C+herbaceous%5C+with%5C+a%5C+creeping%5C+rhizome%2C%5C+thick%5C+basal%5C+leaves%2C%5C+and%5C+an%5C+inflorescence%5C+that%5C+is%5C+a%5C+terminal%5C+spike.%5C+Florescence%5C+is%5C+from%5C+November%5C+to%5C+December%2C%5C+while%5C+fruiting%5C+occurs%5C+between%5C+November%5C+and%5C+December%5C+in%5C+the%5C+next%5C+year.%5C+Reproduction%5C+and%5C+spread%5C+also%5C+occurs%5C+clonally%5C+via%5C+rhizomes%2C%5C+most%5C+seeds%5C+simply%5C+fall%5C+from%5C+the%5C+mother%5C+plant%5C+and%5C+germinate%5C+where%5C+they%5C+land.%5C+It%5C+occurs%5C+on%5C+outcrops%5C+of%5C+bare%5C+rock%2C%5C+or%5C+occasionally%5C+as%5C+an%5C+epiphyte%5C+on%5C+tree%5C+trunks%5C+covered%5C+with%5C+humus%5C+and%5C+moss%2C%5C+which%5C+are%5C+naturally%5C+rare%5C+habitat.%5C+Throughout%5C+its%5C+small%5C+geographical%5C+range%2C%5C+T.%5C+pingbianensis%5C+occurs%5C+as%5C+discrete%2C%5C+small%5C+populations%5C+size.%5C+2.%5C+Seed%5C+germination%5C+traits%5C+of%5C+T.%5C+pingbianensis%2CSeed%5C+morphology%5C+was%5C+observed%5C+and%5C+effects%5C+of%5C+substrates%5C+soil%5C+types%2C%5C+light%2C%5C+sowing%5C+depth%5C+on%5C+germination%5C+percentage%5C+of%5C+the%5C+species%5C+T.%5C+pingbianensis%5C+were%5C+investigated%5C+primarily.%5C+The%5C+results%5C+showed%5C+that%5C+the%5C+average%5C+seed%5C+size%5C+was%5C+%5C%281.17%C2%B10.02%5C%29%5C+cm%5C+%C3%97%5C+%5C%280.79%C2%B10.01%5C%29%5C+cm%5C+%C3%97%5C+%5C%280.77%C2%B10.01%5C%29%5C+cm%5C+%5C%28length%5C+%C3%97%5C+width%5C+%C3%97%5C+thickness%5C%29%2C%5C+per%5C-hundred%5C-seed%5C-weight%5C+was%5C+about%5C+35.03%C2%B10.12g.%5C+Among%5C+the%5C+three%5C+different%5C+substrates%5C+soil%5C+types%5C+and%5C+sowing%5C+depths%2C%5C+seeds%5C+of%5C+T.%5C+pingbianensis%5C+germinate%5C+best%5C+in%5C+alkalescence%5C+soil%5C+and%5C+shallow%5C+sowing%5C+depth%5C+%5C%282cm%5C%29.%5C+It%5C+could%5C+germinate%5C+in%5C+the%5C+both%5C+light%5C+and%5C+dark%2C%5C+but%5C+the%5C+germination%5C+rate%5C+can%5C+be%5C+accelerated%5C+by%5C+light%5C+obviously.%5C+Its%5C+seed%5C+has%5C+high%5C+germination%5C+rate%5C+not%5C+just%5C+in%5C+greenhouse%2C%5C+but%5C+also%5C+in%5C+the%5C+field.%5C+We%5C+considered%5C+that%5C+this%5C+is%5C+a%5C+good%5C+strategy%5C+to%5C+expand%5C+its%5C+population%5C+in%5C+the%5C+special%5C+habit.3.%5C+Karyotype%5C+evolution%5C+status%5C+of%5C+T.%5C+pingbianensis%2CThe%5C+karyotype%5C+of%5C+total%5C+eight%5C+species%5C+in%5C+Campylandra%2C%5C+Tupistra%5C+and%5C+Aspidistra%5C+from%5C+China%5C+were%5C+reported.%5C+Considering%5C+Tupistra%5C+has%5C+the%5C+similar%5C+morphological%5C+character%5C+with%5C+Campylandra%5C+but%5C+resemble%5C+Aspidistra%5C+in%5C+karyotype.%5C+The%5C+results%5C+support%5C+the%5C+earlier%5C+study%5C+that%5C+Tupistra%5C+is%5C+a%5C+transition%5C+between%5C+Compylandra%5C+and%5C+Aspidistra.%5C+Besides%2C%5C+our%5C+results%5C+also%5C+showes%5C+that%5C+the%5C+T.%5C+pingbianensis%5C+and%5C+T.%5C+fungilliformis%5C+has%5C+higher%5C+karyotype%5C+asymmetry%5C+than%5C+other%5C+species%5C+in%5C+this%5C+genera%2C%5C+which%5C+means%5C+these%5C+species%5C+have%5C+higher%5C+karyotype%5C+evolution%5C+status.%5C+4.%5C+Reproduction%5C+ecology%5C+of%5C+T.%5C+pingbianensis%2C%5C+The%5C+flower%5C+phenology%2C%5C+pollinators%5C+of%5C+T.%5C+pingbianensis%5C+were%5C+documented%5C+herein.%5C+We%5C+also%5C+examined%5C+the%5C+breeding%5C+system%5C+of%5C+T.%5C+pingbianensis%5C+and%5C+seed%5C+fitness%5C+traits%5C+to%5C+determine%5C+what%5C+forms%5C+of%5C+pollination%5C+and%5C+mating%5C+occur%5C+in%5C+this%5C+naturally%5C+rare%5C+species%2C%5C+and%5C+is%5C+there%5C+evidence%5C+of%5C+inbreeding%5C+depression%5C+in%5C+its%5C+populations.%5C+The%5C+results%5C+shows%5C+that%5C+the%5C+flowers%5C+opened%5C+10%5C-15%5C+days%2C%5C+which%5C+suggest%5C+stigma%5C+and%5C+pollen%5C+can%5C+keep%5C+high%5C+vitality%5C+for%5C+a%5C+long%5C+time%5C+%5C%2810%5C-15%5C+days%5C%29.%5C+The%5C+only%5C+pollinators%5C+observed%5C+on%5C+T.%5C+pingbianensis%5C+flowers%5C+were%5C+ants%5C+%5C%28Aphaenogaster%5C+smythiesii%5C+Forel%2CFormicidea%5C%29%2C%5C+springtail%5C+%5C%28Hypogastrura%5C+sp.%2C%5C+Hypogastruridae%2C%5C+Collembola%5C%29%5C+and%5C+one%5C+species%5C+of%5C+beetles%5C+%5C%28Anomala%5C+corpulenta%5C+Motsch%2C%5C+Rutelidae%5C%29.%5C+These%5C+pollinators%5C+generally%5C+have%5C+restricted%5C+movement%5C+capacities%5C+and%5C+hence%5C+promote%5C+geitonogamy%5C+or%5C+mating%5C+between%5C+individuals%5C+in%5C+close%5C+proximity%5C+within%5C+populations.%5C+The%5C+results%5C+of%5C+out%5C+crossing%5C+index%5C+%5C%28OCI%5C%29%5C+pollination%5C+experiments%5C+in%5C+our%5C+study%5C+suggest%5C+that%5C+T.%5C+pingbianensis%5C+has%5C+an%5C+animal%5C-pollinated%2C%5C+mixed%5C+selfing%5C+and%5C+outcrossing%5C+breeding%5C+systems.%5C+However%2C%5C+a%5C+pollination%5C+experiment%5C+also%5C+fail%5C+to%5C+detect%5C+significant%5C+inbreeding%5C+depression%5C+upon%5C+F1%5C+fruit%5C+set%2C%5C+seed%5C+weight%5C+and%5C+germinate%5C+rate%5C+fitness%5C-traits.%5C+Since%5C+naturally%5C+rare%5C+species%5C+T.%5C+pingbianensis%5C+is%5C+not%5C+seriously%5C+genetically%5C+impoverished%5C+and%5C+likely%5C+to%5C+have%5C+adapted%5C+to%5C+tolerating%5C+a%5C+high%5C+level%5C+of%5C+inbreeding%5C+early%5C+in%5C+its%5C+history.%5C+5.%5C+Conservation%5C+genetic%5C+of%5C+T.%5C+pingbianensis%2C%5C+The%5C+levels%5C+and%5C+partitioning%5C+of%5C+genetic%5C+diversity%5C+were%5C+investigated%5C+in%5C+Tupistra%5C+pingbianensis.%5C+Here%5C+genetic%5C+diversity%5C+and%5C+patterns%5C+of%5C+genetic%5C+variation%5C+within%5C+and%5C+among%5C+11%5C+populations%5C+were%5C+analyzed%5C+using%5C+AFLP%5C+markers%5C+with%5C+97%5C+individuals%5C+across%5C+its%5C+whole%5C+geographical%5C+range.%5C+High%5C+levels%5C+of%5C+genetic%5C+variation%5C+were%5C+revealed%5C+both%5C+at%5C+the%5C+species%5C+level%5C+%5C%28P99%5C+%3D%5C+96.012%25%5C%3B%5C+Ht%5C+%3D%5C+0.302%5C%29%5C+and%5C+at%5C+the%5C+population%5C+level%5C+%5C%28P99%5C+%3D%5C+51.41%25%5C%3B%5C+Hs%5C+%3D%5C+0.224%5C%29.%5C+Strong%5C+genetic%5C+differentiation%5C+among%5C+populations%5C+was%5C+also%5C+detected%5C+%5C%28FST%5C+%3D%5C+0.2961%5C%3B%5C+%E2%8D%AC%E2%85%A1%3D%5C+0.281%5C%29%2C%5C+which%5C+corresponded%5C+to%5C+results%5C+reported%5C+for%5C+typical%5C+animal%5C-pollinated%2C%5C+mixed%5C+selfing%5C+and%5C+outcrossing%5C+plant%5C+species.%5C+Special%5C+habitat%5C+and%5C+its%5C+life%5C+history%5C+traits%5C+may%5C+play%5C+an%5C+important%5C+role%5C+in%5C+shaping%5C+the%5C+genetic%5C+diversity%5C+and%5C+the%5C+genetic%5C+structure%5C+of%5C+this%5C+species.%5C+Based%5C+on%5C+the%5C+special%5C+habitat%5C+in%5C+T.%5C+pingbianensis%2C%5C+the%5C+most%5C+suitable%5C+strategy%5C+for%5C+its%5C+conservation%5C+is%5C+the%5C+protection%5C+of%5C+its%5C+habitat.%5C+Moreover%2C%5C+given%5C+the%5C+observed%5C+strong%5C+genetic%5C+differentiation%5C+among%5C+populations%5C+of%5C+T.%5C+pingbianensis%2C%5C+the%5C+preservation%5C+of%5C+genetic%5C+diversity%5C+in%5C+this%5C+species%5C+will%5C+require%5C+the%5C+protection%5C+of%5C+many%5C+populations%5C+as%5C+possible%5C+to%5C+maintain%5C+the%5C+current%5C+levels%5C+of%5C+genetic%5C+variability."},{"jsname":"Xiaozhongdian, a town of Shangri-la County, Diqing Prefecture, was chosen as the main field site for studying the structure and characters of traditional agricultural ecosystem, by using approaches of ethnobotany, cultural anthropology and ecology. Combined with interviewing exercises in Hanpi village, Jiantang Township, this paper also discussed the impact of traditional management on the biocultural diversity. The results showed: Traditional agroecosystem in Shangri-la is an integrated system with three subsystems, which are farming, forest and grazing subsystem. The seasonal shifting grazing activity in Shangri-la, following the natural season change and the recover process of plants, is a sustainable management that protects the local biodiversity. However, along with the decay of shifting grazing tradition recently, the local Tibetans turned to use grass land and forest which is close to villages as the main grazing lands. It increased the pasturing pressure to these areas and caused productivity decreasing and biodiversity. As a symbolic part of Tibetan culture in Shangri-la, the sacred mountain culture has played a significant role in biodiversity conservation by restricting human’s behavior. The Tibetan traditional culture, indigenous knowledge and traditional ecosystem management in Shangri-la has contributed to the biodiversity conservation in this area. However, this research indicated that under the pressure of mainstream culture and market economy, traditional knowledge is vanishing; old crop land races are decreasing; diverse land use management is inclining to be single and seasonal shifting grazing tradition is fading away. The change of diversity to singularity might cause some negative impacts on the local environment and ecosystem. In this paper, advices were also given on how to combine Tibetan traditional knowledge and management experiences into sustainable development of modern agriculture. In this thesis, genetic diversity of Musella lasiocarpa (Franch.) C. Y. Wu ex H. W. Li, a plant endemic to southwest China, was also discussed through the approach of SSR markers. The wild populations of M. lasiocarpa are very rare now due to the habitat fragment and long time human’s disturbance. By conducting broad field investigation, we have found 5 wild populations near the boarder of Yunnan and Sichuan province. Seventeen microsatellite markers were isolated from M. lasiocarpa by using FIASCO method. 8 primers were selected to do the further genetic population structure and genetic diversity analysis. The results showed that genetic diversity of M. lasiocarpa’s wild populations is higher than cultivated populations. The genetic diversity difference between wild and cultivated populations is related to the different reproduction systems. Adopting the way of asexuality reproduction, the genetic basis of cultivated populations become narrow that decrease the genetic diversity. AMOVA analysis showed that 37.19% genetic differentiation is among populations and 62.81% is within population. Genetic differentiation among different populations is related to the limited gene communication. POPGENE analysis indicated that there is very little gene flow among different populations (0.4916), which is the main reason of high genetic differentiation among M. lasiocarpa populations.","jscount":"1","jsurl":"/simple-search?field1=all&rpp=10&accurate=false&advanced=false&fq=location.comm.id%3A1&sort_by=2&isNonaffiliated=false&search_type=-1&query1=%25E7%25B3%25BB%25E7%25BB%259F%25E6%25BC%2594%25E5%258C%2596&order=desc&&fq=dc.project.title_filter%3AXiaozhongdian%2C%5C+a%5C+town%5C+of%5C+Shangri%5C-la%5C+County%2C%5C+Diqing%5C+Prefecture%2C%5C+was%5C+chosen%5C+as%5C+the%5C+main%5C+field%5C+site%5C+for%5C+studying%5C+the%5C+structure%5C+and%5C+characters%5C+of%5C+traditional%5C+agricultural%5C+ecosystem%2C%5C+by%5C+using%5C+approaches%5C+of%5C+ethnobotany%2C%5C+cultural%5C+anthropology%5C+and%5C+ecology.%5C+Combined%5C+with%5C+interviewing%5C+exercises%5C+in%5C+Hanpi%5C+village%2C%5C+Jiantang%5C+Township%2C%5C+this%5C+paper%5C+also%5C+discussed%5C+the%5C+impact%5C+of%5C+traditional%5C+management%5C+on%5C+the%5C+biocultural%5C+diversity.%5C+The%5C+results%5C+showed%5C%3A%5C+Traditional%5C+agroecosystem%5C+in%5C+Shangri%5C-la%5C+is%5C+an%5C+integrated%5C+system%5C+with%5C+three%5C+subsystems%2C%5C+which%5C+are%5C+farming%2C%5C+forest%5C+and%5C+grazing%5C+subsystem.%5C+The%5C+seasonal%5C+shifting%5C+grazing%5C+activity%5C+in%5C+Shangri%5C-la%2C%5C+following%5C+the%5C+natural%5C+season%5C+change%5C+and%5C+the%5C+recover%5C+process%5C+of%5C+plants%2C%5C+is%5C+a%5C+sustainable%5C+management%5C+that%5C+protects%5C+the%5C+local%5C+biodiversity.%5C+However%2C%5C+along%5C+with%5C+the%5C+decay%5C+of%5C+shifting%5C+grazing%5C+tradition%5C+recently%2C%5C+the%5C+local%5C+Tibetans%5C+turned%5C+to%5C+use%5C+grass%5C+land%5C+and%5C+forest%5C+which%5C+is%5C+close%5C+to%5C+villages%5C+as%5C+the%5C+main%5C+grazing%5C+lands.%5C+It%5C+increased%5C+the%5C+pasturing%5C+pressure%5C+to%5C+these%5C+areas%5C+and%5C+caused%5C+productivity%5C+decreasing%5C+and%5C+biodiversity.%5C+As%5C+a%5C+symbolic%5C+part%5C+of%5C+Tibetan%5C+culture%5C+in%5C+Shangri%5C-la%2C%5C+the%5C+sacred%5C+mountain%5C+culture%5C+has%5C+played%5C+a%5C+significant%5C+role%5C+in%5C+biodiversity%5C+conservation%5C+by%5C+restricting%5C+human%E2%80%99s%5C+behavior.%5C+The%5C+Tibetan%5C+traditional%5C+culture%2C%5C+indigenous%5C+knowledge%5C+and%5C+traditional%5C+ecosystem%5C+management%5C+in%5C+Shangri%5C-la%5C+has%5C+contributed%5C+to%5C+the%5C+biodiversity%5C+conservation%5C+in%5C+this%5C+area.%5C+However%2C%5C+this%5C+research%5C+indicated%5C+that%5C+under%5C+the%5C+pressure%5C+of%5C+mainstream%5C+culture%5C+and%5C+market%5C+economy%2C%5C+traditional%5C+knowledge%5C+is%5C+vanishing%5C%3B%5C+old%5C+crop%5C+land%5C+races%5C+are%5C+decreasing%5C%3B%5C+diverse%5C+land%5C+use%5C+management%5C+is%5C+inclining%5C+to%5C+be%5C+single%5C+and%5C+seasonal%5C+shifting%5C+grazing%5C+tradition%5C+is%5C+fading%5C+away.%5C+The%5C+change%5C+of%5C+diversity%5C+to%5C+singularity%5C+might%5C+cause%5C+some%5C+negative%5C+impacts%5C+on%5C+the%5C+local%5C+environment%5C+and%5C+ecosystem.%5C+In%5C+this%5C+paper%2C%5C+advices%5C+were%5C+also%5C+given%5C+on%5C+how%5C+to%5C+combine%5C+Tibetan%5C+traditional%5C+knowledge%5C+and%5C+management%5C+experiences%5C+into%5C+sustainable%5C+development%5C+of%5C+modern%5C+agriculture.%5C+In%5C+this%5C+thesis%2C%5C+genetic%5C+diversity%5C+of%5C+Musella%5C+lasiocarpa%5C+%5C%28Franch.%5C%29%5C+C.%5C+Y.%5C+Wu%5C+ex%5C+H.%5C+W.%5C+Li%2C%5C+a%5C+plant%5C+endemic%5C+to%5C+southwest%5C+China%2C%5C+was%5C+also%5C+discussed%5C+through%5C+the%5C+approach%5C+of%5C+SSR%5C+markers.%5C+The%5C+wild%5C+populations%5C+of%5C+M.%5C+lasiocarpa%5C+are%5C+very%5C+rare%5C+now%5C+due%5C+to%5C+the%5C+habitat%5C+fragment%5C+and%5C+long%5C+time%5C+human%E2%80%99s%5C+disturbance.%5C+By%5C+conducting%5C+broad%5C+field%5C+investigation%2C%5C+we%5C+have%5C+found%5C+5%5C+wild%5C+populations%5C+near%5C+the%5C+boarder%5C+of%5C+Yunnan%5C+and%5C+Sichuan%5C+province.%5C+Seventeen%5C+microsatellite%5C+markers%5C+were%5C+isolated%5C+from%5C+M.%5C+lasiocarpa%5C+by%5C+using%5C+FIASCO%5C+method.%5C+8%5C+primers%5C+were%5C+selected%5C+to%5C+do%5C+the%5C+further%5C+genetic%5C+population%5C+structure%5C+and%5C+genetic%5C+diversity%5C+analysis.%5C+The%5C+results%5C+showed%5C+that%5C+genetic%5C+diversity%5C+of%5C+M.%5C+lasiocarpa%E2%80%99s%5C+wild%5C+populations%5C+is%5C+higher%5C+than%5C+cultivated%5C+populations.%5C+The%5C+genetic%5C+diversity%5C+difference%5C+between%5C+wild%5C+and%5C+cultivated%5C+populations%5C+is%5C+related%5C+to%5C+the%5C+different%5C+reproduction%5C+systems.%5C+Adopting%5C+the%5C+way%5C+of%5C+asexuality%5C+reproduction%2C%5C+the%5C+genetic%5C+basis%5C+of%5C+cultivated%5C+populations%5C+become%5C+narrow%5C+that%5C+decrease%5C+the%5C+genetic%5C+diversity.%5C+AMOVA%5C+analysis%5C+showed%5C+that%5C+37.19%25%5C+genetic%5C+differentiation%5C+is%5C+among%5C+populations%5C+and%5C+62.81%25%5C+is%5C+within%5C+population.%5C+Genetic%5C+differentiation%5C+among%5C+different%5C+populations%5C+is%5C+related%5C+to%5C+the%5C+limited%5C+gene%5C+communication.%5C+POPGENE%5C+analysis%5C+indicated%5C+that%5C+there%5C+is%5C+very%5C+little%5C+gene%5C+flow%5C+among%5C+different%5C+populations%5C+%5C%280.4916%5C%29%2C%5C+which%5C+is%5C+the%5C+main%5C+reason%5C+of%5C+high%5C+genetic%5C+differentiation%5C+among%5C+M.%5C+lasiocarpa%5C+populations."},{"jsname":"lastIndexed","jscount":"2024-09-26"}],"资助项目","dc.project.title_filter")'>
Begonia se... [1]
Craigia yu... [1]
Cyatheacea... [1]
Cycas mich... [1]
Cytology s... [1]
In the pre... [1]
更多...
收录类别
资助机构
×
知识图谱
KIB OpenIR
开始提交
已提交作品
待认领作品
已认领作品
未提交全文
收藏管理
QQ客服
官方微博
反馈留言
浏览/检索结果:
共185条，第1-10条
帮助
限定条件
专题：昆明植物所硕博研究生毕业学位论文
第一作者的第一单位
第一作者单位
通讯作者单位
已选(
0
)
清除
条数/页：
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
排序方式：
请选择
发表日期升序
发表日期降序
WOS被引频次升序
WOS被引频次降序
题名升序
题名降序
提交时间升序
提交时间降序
作者升序
作者降序
期刊影响因子升序
期刊影响因子降序
报春花属植物交配系统转变研究
学位论文
: 中国科学院大学, 2022
作者:
钟莉
Adobe PDF(13585Kb)
|
收藏
|
浏览/下载：117/0
|
提交时间：2024/05/14
报春花属，交配系统，二型花柱，同型花柱，自交综合征，遗传多样性，性状演化
Primula, mating system, distyly, homostyly, genetic diversity, selfing syndrome, trait evolution
唇形科叶绿体系统发育基因组学研究 ——兼论假野芝麻属的系统学位置
学位论文
: 中国科学院大学, 2022
作者:
赵飞
Adobe PDF(10432Kb)
|
收藏
|
浏览/下载：164/0
|
提交时间：2024/05/14
唇形科，野芝麻亚科，假野芝麻属，族间关系，系统发育基因组学
Lamiaceae, Lamioideae, Paralamium, tribe relationships, phylogenomic
广义红豆杉科系统发育基因组学与生物地理学研究
学位论文
: 中国科学院大学, 2022
作者:
汪洁
Adobe PDF(7773Kb)
|
收藏
|
浏览/下载：77/0
|
提交时间：2024/05/14
广义红豆杉科，叶绿体基因组，二代条形码，系统发育基因组学，生物地理
Taxaceae s.l., Plastomes, Super-barcoding, Phylogenomics, Biogeography
叶绿体全基因组序列在香薷属（唇 形科）系统发育中的应用
学位论文
: 中国科学院大学, 2022
作者:
孙增朋
Adobe PDF(18540Kb)
|
收藏
|
浏览/下载：32/0
|
提交时间：2024/05/14
香薷属
Elsholtzia
叶绿体基因组
Plastomes
系统发育重建
Phylogenetic reconstruction
生物地理学
Biogeography
高变区
Highly variable region
青藏高原广义黑瘤衣属地衣分类及系统发育研究
学位论文
: 中国科学院大学, 2022
作者:
艾敏
Adobe PDF(11866Kb)
|
收藏
|
浏览/下载：33/0
|
提交时间：2024/05/14
系统发育分析，物种界定，模式标本原产地，鳞饼衣属
Phylogenetic analyses, species identification, type localities, Dimelaena
唇形科野芝麻亚科的叶绿体系统发育基因组学研究
学位论文
: 中国科学院大学, 2022
作者:
武忆雯
Adobe PDF(8993Kb)
|
收藏
|
浏览/下载：36/0
|
提交时间：2024/05/14
野芝麻亚科，刺蕊草族，假野芝麻属，糙苏族，分子系统学
Lamioideae, Pogostemoneae, Paralamium, Phlomideae, molecular phylogenetic study.
滇缅泰地区巨竹属（禾本科：竹亚科）的分类修订
学位论文
, 2020
作者:
许祖昌
Adobe PDF(15131Kb)
|
收藏
|
浏览/下载：96/0
|
提交时间：2023/11/02
报春花属植物交配系统转变的遗传效应
学位论文
, 2020
作者:
王昕嘉
Adobe PDF(5349Kb)
|
收藏
|
浏览/下载：119/0
|
提交时间：2023/11/02
来江藤属系统发育及花性状演化
学位论文
, 2020
作者:
陈哲
Adobe PDF(9131Kb)
|
收藏
|
浏览/下载：63/1
|
提交时间：2023/11/02
人参属的系统发育及羽叶三七复合群的遗传关系研究
学位论文
, 2020
作者:
周明媚
Adobe PDF(8151Kb)
|
收藏
|
浏览/下载：67/0
|
提交时间：2023/11/02
