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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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0.05). For some populations, germination capacity in 12-h photoperiod was significantly higher than that in completed darkness(W-FD: P < 0.01, W-JD: P < 0.05).Genetic variation within and among six populations was assessed using AFLP markers. Genetic diversity was higher at species level (PPL = 69.19%, HE = 0.221) than at population level (PPL = 26.22%, HE = 0.095, Is =0.140), and populations in southeast Yunnan were strongly differentiated from those in southwest Yunnan (Nei’s GST = 0.575; FST = 0.655). UPGMA analysis demonstrated a clear genetic division between the two populations from DeHong (SW Yunnan; D-JD and D-HG) and the four from WenShan (SE Yunnan; W-FD, W-LH, W-ML, and W-MG). Within-population genetic variation was significantly correlated with population isolation (r(PPL) = -0.94, P = 0.006; r(HE) = -0.85, P = 0.032; r(Is) = -0.87, P = 0.025), but not with population size (r(PPL) = 0.63, P = 0.178; r(HE) = 0.54, P = 0.268; r(Is) = 0.56, P = 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species, usually called tree ferns, are considered as relicts of a time when dinosaurs were common. In recent several decades, the number of Cyatheaceae plants decreases dramatically. In order to find the reasons and provide directions for protecting these endangered plants, the biological characteristics of Cyatheaceae were surveyed. Using AFLP and cpDNA sequence variations, the genetic diversity and phylogeography of Sphaeropteris brunoniana were also analyzed. Based on these findings, implications for conservation strategies were discussed for this relict tree fern. Main results of the dissertation were summarized as follows, (1) Cyatheaceae plants have extensive distribution in Yunnan, China, and most of them distribute in southeast of Yunnan. In southeast, they usually inhabit margins of evergreen broad-leaved forests or secondary coniferous forests; however, the population update is very different and the age structure is unscientific. The spore of Cyatheaceae is trilete, radially symmetrical, and perinous. The spores of Alsophila species feature a ridged perine and a granular, verrucate or smooth exine. The spores of S. brunoniana are characterized by an incipient granular outermost layer and a verrucate exine. The metaphase chromosome numbers of gametophytes in the three examined species, viz. A. podophylla, A. gigantea and A. austro-yunnanensis, are 69, indicating that they are diploid and do not display variety in chromosome number. The chemical constituents of S. brunoniana are main simple and familiar compounds, such as saccharides, fatty acids and alcohols, and stigmasterols. (2) An unexpectedly high level of nDNA genetic diversity and low cpDNA diversity were detected in S. brunoniana. (3) This study showed that the genetic differentiation among populations within regions was low and between regions was significant. (4) There were several refugia of S. brunoniana in Yunnan during glacial periods. The Hainan populations were likely new colonizations and originated from Southeast Asia. (5) To retain existing genetic diversity, whether in situ or ex situ conservation or collection of germplasm is used, the populations of the two regions should be considered equally. Furthermore, ex situ conservation of this species should be preferably conducted on large populations.","jscount":"1","jsurl":"/simple-search?field1=all&rpp=10&accurate=false&advanced=false&sort_by=2&isNonaffiliated=false&search_type=-1&query1=Hainan&order=desc&&fq=dc.project.title_filter%3ACyatheaceae%5C+species%2C%5C+usually%5C+called%5C+tree%5C+ferns%2C%5C+are%5C+considered%5C+as%5C+relicts%5C+of%5C+a%5C+time%5C+when%5C+dinosaurs%5C+were%5C+common.%5C+In%5C+recent%5C+several%5C+decades%2C%5C+the%5C+number%5C+of%5C+Cyatheaceae%5C+plants%5C+decreases%5C+dramatically.%5C+In%5C+order%5C+to%5C+find%5C+the%5C+reasons%5C+and%5C+provide%5C+directions%5C+for%5C+protecting%5C+these%5C+endangered%5C+plants%2C%5C+the%5C+biological%5C+characteristics%5C+of%5C+Cyatheaceae%5C+were%5C+surveyed.%5C+Using%5C+AFLP%5C+and%5C+cpDNA%5C+sequence%5C+variations%2C%5C+the%5C+genetic%5C+diversity%5C+and%5C+phylogeography%5C+of%5C+Sphaeropteris%5C+brunoniana%5C+were%5C+also%5C+analyzed.%5C+Based%5C+on%5C+these%5C+findings%2C%5C+implications%5C+for%5C+conservation%5C+strategies%5C+were%5C+discussed%5C+for%5C+this%5C+relict%5C+tree%5C+fern.%5C+Main%5C+results%5C+of%5C+the%5C+dissertation%5C+were%5C+summarized%5C+as%5C+follows%2C%5C+%5C%281%5C%29%5C+Cyatheaceae%5C+plants%5C+have%5C+extensive%5C+distribution%5C+in%5C+Yunnan%2C%5C+China%2C%5C+and%5C+most%5C+of%5C+them%5C+distribute%5C+in%5C+southeast%5C+of%5C+Yunnan.%5C+In%5C+southeast%2C%5C+they%5C+usually%5C+inhabit%5C+margins%5C+of%5C+evergreen%5C+broad%5C-leaved%5C+forests%5C+or%5C+secondary%5C+coniferous%5C+forests%5C%3B%5C+however%2C%5C+the%5C+population%5C+update%5C+is%5C+very%5C+different%5C+and%5C+the%5C+age%5C+structure%5C+is%5C+unscientific.%5C+The%5C+spore%5C+of%5C+Cyatheaceae%5C+is%5C+trilete%2C%5C+radially%5C+symmetrical%2C%5C+and%5C+perinous.%5C+The%5C+spores%5C+of%5C+Alsophila%5C+species%5C+feature%5C+a%5C+ridged%5C+perine%5C+and%5C+a%5C+granular%2C%5C+verrucate%5C+or%5C+smooth%5C+exine.%5C+The%5C+spores%5C+of%5C+S.%5C+brunoniana%5C+are%5C+characterized%5C+by%5C+an%5C+incipient%5C+granular%5C+outermost%5C+layer%5C+and%5C+a%5C+verrucate%5C+exine.%5C+The%5C+metaphase%5C+chromosome%5C+numbers%5C+of%5C+gametophytes%5C+in%5C+the%5C+three%5C+examined%5C+species%2C%5C+viz.%5C+A.%5C+podophylla%2C%5C+A.%5C+gigantea%5C+and%5C+A.%5C+austro%5C-yunnanensis%2C%5C+are%5C+69%2C%5C+indicating%5C+that%5C+they%5C+are%5C+diploid%5C+and%5C+do%5C+not%5C+display%5C+variety%5C+in%5C+chromosome%5C+number.%5C+The%5C+chemical%5C+constituents%5C+of%5C+S.%5C+brunoniana%5C+are%5C+main%5C+simple%5C+and%5C+familiar%5C+compounds%2C%5C+such%5C+as%5C+saccharides%2C%5C+fatty%5C+acids%5C+and%5C+alcohols%2C%5C+and%5C+stigmasterols.%5C+%5C%282%5C%29%5C+An%5C+unexpectedly%5C+high%5C+level%5C+of%5C+nDNA%5C+genetic%5C+diversity%5C+and%5C+low%5C+cpDNA%5C+diversity%5C+were%5C+detected%5C+in%5C+S.%5C+brunoniana.%5C+%5C%283%5C%29%5C+This%5C+study%5C+showed%5C+that%5C+the%5C+genetic%5C+differentiation%5C+among%5C+populations%5C+within%5C+regions%5C+was%5C+low%5C+and%5C+between%5C+regions%5C+was%5C+significant.%5C+%5C%284%5C%29%5C+There%5C+were%5C+several%5C+refugia%5C+of%5C+S.%5C+brunoniana%5C+in%5C+Yunnan%5C+during%5C+glacial%5C+periods.%5C+The%5C+Hainan%5C+populations%5C+were%5C+likely%5C+new%5C+colonizations%5C+and%5C+originated%5C+from%5C+Southeast%5C+Asia.%5C+%5C%285%5C%29%5C+To%5C+retain%5C+existing%5C+genetic%5C+diversity%2C%5C+whether%5C+in%5C+situ%5C+or%5C+ex%5C+situ%5C+conservation%5C+or%5C+collection%5C+of%5C+germplasm%5C+is%5C+used%2C%5C+the%5C+populations%5C+of%5C+the%5C+two%5C+regions%5C+should%5C+be%5C+considered%5C+equally.%5C+Furthermore%2C%5C+ex%5C+situ%5C+conservation%5C+of%5C+this%5C+species%5C+should%5C+be%5C+preferably%5C+conducted%5C+on%5C+large%5C+populations."},{"jsname":"lastIndexed","jscount":"2025-06-04"}],"资助项目","dc.project.title_filter")'>
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The identity of Dinochloa species and enumeration of Melocalamus (Poaceae: Bambusoideae) in China
期刊论文
PLANT DIVERSITY, 2023, 卷号: 45, 期号: 2, 页码: 133-146
作者:
Liu,Jing-Xia
;
Xu,Zu-Chang
;
Zhang,Yu-Xiao
;
Zhou,Meng-Yuan
;
Li,De-Zhu
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ddRAD
Melocalamus orenudus
Melocalamus puberulus
Melocalamus utilis
New combinations
Lectotypification
GRAMINEAE
NUCLEAR
STACKS
GENE
Essential oil components in the seed masses of Amomum xanthioides and its related species from Southeast Asia and China
期刊论文
JOURNAL OF NATURAL MEDICINES, 2022, 卷号: 76, 期号: 2, 页码: 435-450
作者:
Sone, Mikako
;
Komatsu, Katsuko
;
Zhu, Shu
;
Cheng, Xiao
;
Ketphanh, Sounthone
;
Kawahara, Nobuo
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Amomi Semen
Amomum seeds
Amomi Fructus
Amomum xanthioides
Essential oil
ZINGIBERACEAE
First macrofossil record of Icacinaceae in East Asia (early Oligocene, Wenshan Basin) and its ecological implications
期刊论文
JOURNAL OF SYSTEMATICS AND EVOLUTION, 2022, 卷号: 60, 期号: 2, 页码: 445-455
作者:
Del Rio,Cedric
;
Huang,Jian
;
Stull,Gregory W.
;
Allemand,Remi
;
Zhou,Zhe-Kun
;
Su,Tao
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China
endocarps
Icacinaceae Iodes
Oligocene
paleoclimate
NORTH-AMERICA
SOUTHWEST CHINA
FOSSIL RECORD
EOCENE
FRUITS
MIOCENE
PALEOCENE
WOOD
PALEOGEOGRAPHY
HEMISPHERE
Geographic factors and climatic fluctuation drive the genetic structure and demographic history of Cycas taiwaniana (Cycadaceae), an endemic endangered species to Hainan Island in China
期刊论文
ECOLOGY AND EVOLUTION, 2022, 卷号: 12, 期号: 11, 页码: e9508
作者:
Wu, Li-Xin
;
Xu, Hai-Yan
;
Jian, Shu-Guang
;
Gong, Xun
;
Feng, Xiu-Yan
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板蓝的民族植物学调查与产蓝机制研究
学位论文
, 2021
作者:
张俪斌
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提交时间:2024/03/20
资源植物板蓝(Strobilanthes cusia)可持续利用的价值链研究
学位论文
, 2021
作者:
邱祖川
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民族民间传统植物靛蓝质量评价研究
学位论文
, 2021
作者:
施宇茹
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Comprehensive Review of Tolypocladium and Description of a Novel Lineage from Southwest China
期刊论文
PATHOGENS, 2021, 卷号: 10, 期号: 11, 页码: 1389
作者:
Yu,Feng-Ming
;
Thilini Chethana,Kandawatte Wedaralalage
;
Wei,De-Ping
;
Liu,Jian-Wei
;
Zhao,Qi
;
Tang,Song-Ming
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Li,Lu
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Hyde,Kevin David
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new taxon
diversity
ecology
host shift
multi-gene
mycoparasite
taxonomic key
SP-NOV
PHYLOGENETIC-RELATIONSHIPS
CORDYCEPS
FUNGI
DIVERSIFICATION
PERFORMANCE
EVOLUTION
PATHOGEN
NUCLEAR
SOIL
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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species boundary
molecular identification
DNA barcoding
taxonomy
threatened species
aquatic plant
SPECIES DELIMITATION
DNA BARCODES
MACROPHYTE DECLINE
CONSERVATION
GENOMES
BIODIVERSITY
GENETICS
MODEL
LAKES
SPP.
Colletotrichum dracaenigenum, a new species on Dracaena fragrans
期刊论文
PHYTOTAXA, 2021, 卷号: 491, 期号: 2, 页码: 143-157
作者:
Chaiwan,Napalai
;
Tibpromma,Saowaluck
;
Jayawardena,Ruvishika S.
;
Mapook,Ausana
;
Wanasinghe,Dhanushka N.
;
Mortimer,Peter E.
;
Lumyong,Saisamorn
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Hyde,Kevin D.
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Morphology
Multi-locus
Novel species
Phylogeny
Taxonomy
FUNGI
DIVERSITY
SPP.
ANTHRACNOSE
FAMILIES
GENERA