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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
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GST,p < 0.001) and low levels of seed-based gene flow. C. debaoensis (Cycadaceae) is an endangered species restricted to the border of Guangxi and Yunnan province in southwest China. This species has been classified into two types: sand and karst, according to the soil matrix they grow on. We examined chloroplast sequence variation of the cpDNA sequences from 11 populations of this species. Significant population genetic differentiation was detected (GST= 0.684 and FST = 0.74160). There was marked genetic differentiation between populations in the sand and karst regions and no expansion was detected. Climate changes during glacial periods have had significant effects on the current distribution of cycads. The molecular phylogenetic data, together with the geographic distribution of the haplotypes, suggest that C. debaoensis experienced range contraction during glacial periods, and that the current populations are still confined to the original refugia in southwest China which have favorable habitats in glacial period. These results imply that small refugia were maintained in both sand and karst regions during the LGM (last glacial maximum). This species had no postglacial recolonization and only stayed in these refugia up to now. The low within-population diversity of C. debaoensis suggests that there were strong bottleneck events or founder effects within each separate region during the Quaternary climatic oscillations. Relatively high genetic and haplotype diversities were detected in the newly discovered populations, which located at intermediate locality of sand regions and had morphological variation; this is probably the consequence of the admixture of different haplotypes colonizing the area from separate sources. C. micholitzii occurs in the Annan Highlands in central Vietnam near the Laos border. C. bifida occurs in North Vietnam; its distribution extends across the border into adjacent localities in Guangxi and Yunnan in China. For the comparability between them,theywere considered as the same species C. micholitzii by many academicians. The cpDNA sequences from 11 populations showed that these very controversial species, C. micholitzii and C. bifida, is paraphyletic and should belong to the same species C. micholitzii. AMOVA analysis showed that the component of among-population within region/species (76.46%) was unexpectedly larger than the among-species/region component (14.97%), which also indicates that there is no justification for recognizing two species as C. micholitzii and C. bifida. This hypothesis was also supported by the geological data, especially the neotectonic history of the indo-china block, which started to move south since Oligocene and cause the geographic isolation of these two groups. Therefore, the most likely explanation to the phenotypic similarities between these two groups may be the retention of ancestral polymorphisms in the paraphyletic group due to incomplete lineage sorting. Furthermore, the similarities may also be ascribed to pollen-mediated gene flow among geographically proximate populations and/or phenotypic convergence under similar selection schemes in the same region. C.micholitzi had the higest genetic diversity (HT = 0.980,) and genetic differentiation (GST = 0.830, NST = 0.915) among the C. micholitzii complex. The high genetic diversity might be attributed to its long evolutionary history, highly diverse habitats. The ineffective mode of seed dispersal and dramatic neotectonic movement in the distribution range of this species could result in the high genetic differentiation. 2. Phylogeographic analysis based on nuclear ribosomal sequences, We sequenced the nrDNA ITS in all 27 populations sampled, 7 haplotypes were identified, among which C. micholitzii had 6, while C. multipinnata, C. longipetiolula and C. debaoensis shared the remaining one. Compared to chloroplast genes, nuclear genes had higher correlation between genetic and geographical distance, but lower interspecies differentiation (54.42% vs 25.24%). Phylogeographical structure of C. micholitzii and C.bifida based on ITS Variation was consistent with the morphology differentiation. This similar in nuclear gene should be ascribed to pollen-mediated gene flow among geographically proximate populations.Long-distance gene flow over the two groups was clearly interrupted, which brought on the nrDNA genetic differenciation between the geographically isolated groups, to a certain extent affected the morphological variation. 3. Interspecies relationships among Cycas micholitzii complex, We analysed chloroplast sequence variation of the atpB-rbcL and psbA-trnH intergenic spacers in 27 populations sampled of C. micholitzii complex, AMOVA analysis showed that the component of among-species/region component (59.21%). However, phylogenic analysis showed that the haplotypes of C. micholitzii complex couldn`t grouped into four clusters closely corresponding to the narrowly defined C. micholitzi, C. multipinnata, C. debaoensis and C. longipetiolula. We concluded that the conflict may result from several factors: firstly incomplete lineage sorting of C. micholitzii; secondly hybridization/introgression of sympatrically cycads, which would be supported by evidence base on nrDNA ITS sequences; thirdly intramolecular recombination in cpDNA of cycads; eventually the neotectonic movement in the distribution range of this 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Light International Fellowship for Chinese Botanists at Missouri Botanical Garden","jscount":"1","jsurl":"/simple-search?field1=all&rpp=10&accurate=false&advanced=false&sort_by=2&isNonaffiliated=false&search_type=-1&query1=Sympatric%2Bspeciation&order=desc&&fq=dc.project.title_filter%3AGlory%5C+Light%5C+International%5C+Fellowship%5C+for%5C+Chinese%5C+Botanists%5C+at%5C+Missouri%5C+Botanical%5C+Garden"},{"jsname":"Japan Society for the Promotion of Science[1264402271]","jscount":"1","jsurl":"/simple-search?field1=all&rpp=10&accurate=false&advanced=false&sort_by=2&isNonaffiliated=false&search_type=-1&query1=Sympatric%2Bspeciation&order=desc&&fq=dc.project.title_filter%3AJapan%5C+Society%5C+for%5C+the%5C+Promotion%5C+of%5C+Science%5C%5B1264402271%5C%5D"},{"jsname":"Kunming Institute of Botany, Chinese Academy of 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Evolutionary ecology of plant-plant interactions
期刊论文
出版物, 3111, 页码: 1-144
作者:
Zuo Z(作者)
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浏览/下载：246/4
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提交时间：2017/07/19
兰科玉凤花属近缘种花部性状及传粉系统的地理变异
学位论文
: 中国科学院大学, 2022
作者:
张海萍
Adobe PDF(6733Kb)
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浏览/下载：157/0
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提交时间：2024/05/14
性状变异，传粉者，生殖隔离，地理马赛克，物种共存
Character variation, Pollinator, Reproductive isolation, Geographic mosaic, Species coexistence
Multiple lines of evidence supports the two varieties of Halenia elliptica (Gentianaceae) as two species
期刊论文
PLANT DIVERSITY, 2022, 卷号: 44, 期号: 3, 页码: 290-299
作者:
Wu, Jin-Feng
;
Jia, Dong-Rui
;
Liu, Rui-Juan
;
Zhou, Zhi-Li
;
Wang, Lin-Lin
;
Chen, Min-Yu
;
Meng, Li-Hua
;
Duan, Yuan-Wen
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浏览/下载：38/11
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提交时间：2024/04/30
Halenia elliptica
Flowering phenology
Mating system
Reproductive isolation
Monophyly
Species delimitation
REPRODUCTIVE ISOLATION
PHYLOGENETIC ANALYSIS
FLORAL TRAITS
NUCLEAR
DIVERSIFICATION
DELIMITATION
CHLOROPLAST
ANGIOSPERMS
SPECIATION
RESOLVES
Arbuscular mycorrhizal trees influence the latitudinal beta-diversity gradient of tree communities in forests worldwide
期刊论文
NATURE COMMUNICATIONS, 2021, 卷号: 12, 期号: 1, 页码: 3137
作者:
Zhong,Yonglin
;
Chu,Chengjin
;
Myers,Jonathan A.
;
Gilbert,Gregory S.
;
Lutz,James A.
;
Stillhard,Jonas
;
Zhu,Kai
;
Thompson,Jill
;
Baltzer,Jennifer L.
;
He,Fangliang
;
LaManna,Joseph A.
;
Davies,Stuart J.
;
Aderson-Teixeira,Kristina J.
;
Burslem,David F. R. P.
;
Alonso,Alfonso
;
Chao,Kuo-Jung
;
Wang,Xugao
;
Gao,Lianming
;
Orwig,David A.
;
Yin,Xue
;
Sui,Xinghua
;
Su,Zhiyao
;
Abiem,Iveren
;
Bissiengou,Pulcherie
;
Bourg,Norm
;
Butt,Nathalie
;
Cao,Min
;
Chang-Yang,Chia-Hao
;
Chao,Wei-Chun
;
Chapman,Hazel
;
Chen,Yu-Yun
;
Coomes,David A.
;
Cordell,Susan
;
de Oliveira,Alexandre A.
;
Du,Hu
;
Fang,Suqin
;
Giardina,Christian P.
;
Hao,Zhanqing
;
Hector,Andrew
;
Hubbell,Stephen P.
;
Janik,David
;
Jansen,Patrick A.
;
Jiang,Mingxi
;
Jin,Guangze
;
Kenfack,David
;
Kral,Kamil
;
Larson,Andrew J.
;
Li,Buhang
;
Li,Xiankun
;
Li,Yide
;
Lian,Juyu
;
Lin,Luxiang
;
Liu,Feng
;
Liu,Yankun
;
Liu,Yu
;
Luan,Fuchen
;
Luo,Yahuang
;
Ma,Keping
;
Malhi,Yadvinder
;
McMahon,Sean M.
;
McShea,William
;
Memiaghe,Herve
;
Mi,Xiangcheng
;
Morecroft,Mike
;
Novotny,Vojtech
;
O'Brien,Michael J.
;
den Ouden,Jan
;
Parker,Geoffrey G.
;
Qiao,Xiujuan
;
Ren,Haibao
;
Reynolds,Glen
;
Samonil,Pavel
;
Sang,Weiguo
;
Shen,Guochun
;
Shen,Zhiqiang
;
Song,Guo-Zhang Michael
;
Sun,I-Fang
;
Tang,Hui
;
Tian,Songyan
;
Uowolo,Amanda L.
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Uriarte,Maria
;
Wang,Bin
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Wang,Xihua
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Wang,Youshi
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Weiblen,George D.
;
Wu,Zhihong
;
Xi,Nianxun
;
Xiang,Wusheng
;
Xu,Han
;
Xu,Kun
;
Ye,Wanhui
;
Yu,Mingjian
;
Zeng,Fuping
;
Zhang,Minhua
;
Zhang,Yingming
;
Zhu,Li
;
Zimmerman,Jess K.
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Adobe PDF(7895Kb)
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浏览/下载：294/178
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提交时间：2022/04/02
NEGATIVE DENSITY-DEPENDENCE
NESTEDNESS
TEMPERATURE
COMPONENTS
TURNOVER
PLANTS
FUNGI
ASSOCIATIONS
ECOLOGY
NETWORK
Deciphering the Taxonomic Delimitation of Ottelia acuminata (Hydrocharitaceae) Using Complete Plastomes as Super-Barcodes
期刊论文
FRONTIERS IN PLANT SCIENCE, 2021, 卷号: 12, 页码: 681270
作者:
Ji,Yunheng
;
Yang,Jin
;
Landis,Jacob B.
;
Wang,Shuying
;
Yang,Zhenyan
;
Zhang,Yonghong
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浏览/下载：171/81
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提交时间：2022/04/02
species boundary
molecular identification
DNA barcoding
taxonomy
threatened species
aquatic plant
SPECIES DELIMITATION
DNA BARCODES
MACROPHYTE DECLINE
CONSERVATION
GENOMES
BIODIVERSITY
GENETICS
MODEL
LAKES
SPP.
Speciation along the elevation gradient: Divergence of Roscoea species within the south slope of the Himalayas
期刊论文
MOLECULAR PHYLOGENETICS AND EVOLUTION, 2021, 卷号: 164, 页码: 107292
作者:
Zhao,Jian-Li
;
Paudel,Babu Ram
;
Yu,Xiang-Qin
;
Zhang,Jie
;
Li,Qing-Jun
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Adobe PDF(3604Kb)
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浏览/下载：89/9
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提交时间：2022/04/02
Climate changes
Elevation gradient
Mountain biodiversity
Speciation
The Himalayas
ASIAN MONSOONS
PLANT
BIODIVERSITY
EVOLUTION
UPLIFT
INTROGRESSION
POPULATIONS
PHYLOGENY
MOUNTAINS
FLY
Mating Systems in True Morels (Morchella)
期刊论文
MICROBIOLOGY AND MOLECULAR BIOLOGY REVIEWS, 2021, 卷号: 85, 期号: 3, 页码: e00220-20
作者:
Du,Xi-Hui
;
Yang,Zhu L.
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浏览/下载：82/17
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提交时间：2022/04/02
mating type
heterothallism
unisexual reproduction
pseudohomothallism
spatial competition
skewed distribution
mitospore
asexual reproduction
genome analysis
evolution
SEXUAL REPRODUCTION
NEUROSPORA-CRASSA
LIFE-CYCLE
HETEROKARYON INCOMPATIBILITY
VEGETATIVE INCOMPATIBILITY
SORDARIA-MACROSPORA
POPULATION-GENETICS
PODOSPORA-ANSERINA
PURE CULTURE
MODEL FUNGUS
Calanthe x yarlungzangboensis, a new natural hybrid in genus Calanthe (Orchidaceae) from China
期刊论文
PHYTOTAXA, 2021, 卷号: 518, 期号: 2, 页码: 167-174
作者:
Wu,Po-Po
;
Wang,Zi
;
Jia,Ning-Xia
;
Guo,Shi-Wei
;
Liu,Chang-Cheng
;
Jin,Xiao-Hua
;
Guo,Ke
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Adobe PDF(3322Kb)
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浏览/下载：102/10
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提交时间：2022/04/02
Calanthe
Eastern Himalayas
new hybrid
Orchidaceae
SP-NOV ORCHIDACEAE
EPIDENDROIDEAE
COLLABIEAE
YUNNAN
Hidden in plain view: an example from Ptilidium (Ptilidiaceae, Marchantiophyta)
期刊论文
PHYTOTAXA, 2021, 卷号: 510, 期号: 1, 页码: 29-42
作者:
Bakalin,Vadim
;
Vilnet,Anna
;
Klimova,Ksenia
;
Ma,Wen Zhang
;
Choi,Seung Se
;
Hentschel,Jorn
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Adobe PDF(3187Kb)
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浏览/下载：123/35
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提交时间：2022/04/02
Ptilidium
cryptic speciation
evolution
Sino-Himalaya
taxonomy
MAXIMUM-LIKELIHOOD
UNIVERSAL PRIMERS
LEAFY LIVERWORT
AMPLIFICATION
SCAPANIACEAE
SPECIATION
TAXA
Differential expressions of anthocyanin synthesis genes underlie flower color divergence in a sympatric Rhododendron sanguineum complex
期刊论文
BMC PLANT BIOLOGY, 2021, 卷号: 21, 期号: 1, 页码: 204
作者:
Ye,Lin-Jiang
;
Moller,Michael
;
Luo,Ya-Huang
;
Zou,Jia-Yun
;
Zheng,Wei
;
Wang,Yue-Hua
;
Liu,Jie
;
Zhu,An-Dan
;
Hu,Jin-Yong
;
Li,De-Zhu
;
Gao,Lian-Ming
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Adobe PDF(1937Kb)
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浏览/下载：238/125
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提交时间：2022/04/02
Anthocyanin synthesis
Comparative transcriptomics
Flower coloration
Gene expression
Rhododendron sanguineum complex
Sympatric speciation
RNA-SEQ DATA
TRANSCRIPTOME ANALYSIS
ANALYSIS REVEALS
BIOSYNTHESIS
GENERATION
ALIGNMENT
FLAVONOL
COPIGMENTATION
IDENTIFICATION
ACCUMULATION
