Low genetic diversity and high genetic differentiation in the critically endangered Omphalogramma souliei (Primulaceae): implications for its conservation
Huang, Yuan; Zhang, Chang-Qin; Li, De-Zhu
通讯作者dzl@mail.kib.ac.cn
2009-03-01
发表期刊JOURNAL OF SYSTEMATICS AND EVOLUTION
ISSN0529-1526
卷号47期号:2页码:103-109
摘要Omphalogramma souliei Franch. is an endangered perennial herb only distributed in alpine areas of SW China. ISSR markers were applied to determine the genetic variation and genetic structure of 60 individuals of three populations of O. souliei in NW Yunnan, China. The genetic diversity at the species level is low with P = 42.5% (percentage of polymorphic bands) and Hsp=0.1762 (total genetic diversity). However, a high level of genetic differentiation among populations was detected based on different measures (Nei's genetic diversity analysis: Gst=0.6038; AMOVA analysis: Fst=0.6797). Low level of genetic diversity within populations and significant genetic differentiation among populations might be due to the mixed mating system in which xenogamy predominated and autogamy played an assistant role in O. souliei. The genetic drift due to small population size and limited current gene flow also resulted in significant genetic differentiation. The assessment of genetic variation and differentiation of the endangered species provides important information for conservation on a genetic basis. Conservation strategies for this rare endemic species are proposed.
关键词Genetic Differentiation Genetic Diversity Issr Markers Mating System Omphalogramma Souliei
学科领域Plant Sciences
DOI10.1111/j.1759-6831.2009.00008.x
收录类别SCI
语种英语
WOS记录号WOS:000264959200002
引用统计
文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/2711
专题中国科学院东亚植物多样性与生物地理学重点实验室
作者单位Chinese Acad Sci, Kunming Inst Bot, Key Lab Biodivers & Biogeog, Kunming 650204, Peoples R China
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Huang, Yuan,Zhang, Chang-Qin,Li, De-Zhu. Low genetic diversity and high genetic differentiation in the critically endangered Omphalogramma souliei (Primulaceae): implications for its conservation[J]. JOURNAL OF SYSTEMATICS AND EVOLUTION,2009,47(2):103-109.
APA Huang, Yuan,Zhang, Chang-Qin,&Li, De-Zhu.(2009).Low genetic diversity and high genetic differentiation in the critically endangered Omphalogramma souliei (Primulaceae): implications for its conservation.JOURNAL OF SYSTEMATICS AND EVOLUTION,47(2),103-109.
MLA Huang, Yuan,et al."Low genetic diversity and high genetic differentiation in the critically endangered Omphalogramma souliei (Primulaceae): implications for its conservation".JOURNAL OF SYSTEMATICS AND EVOLUTION 47.2(2009):103-109.
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