Understanding population structure and historical demography in a conservation context: population genetics of an endangered fern

doi:10.1111/j.1472-4642.2008.00484.x

CORC > 武汉植物园 > 中国科学院武汉植物园

	Understanding population structure and historical demography in a conservation context: population genetics of an endangered fern
	Kang, Ming 3,4; Huang, Hongwen 3; Jiang, Mingxi 4; Lowe, Andrew J.1
刊名	DIVERSITY AND DISTRIBUTIONS
	2008-09-01
卷号	14 期号:5 页码:799-807
关键词	Adiantum reniforme var sinense assignment test conservation endangered fern equilibrium gene flow isolation by distance microsatellite
ISSN号	1366-9516
DOI	10.1111/j.1472-4642.2008.00484.x
英文摘要	The construction of the world's largest hydroelectric scheme across the Yangtze River, the Three Gorges Dams (TGD), in the centre of a southern-central Chinese biodiversity hot spot, the Three Gorges Reservoir Area (TGRA), has attracted international concern and conservation action. To examine whether landscape changes to date have impacted regional flora, and to establish long-term monitoring baselines, we assessed the distribution and dynamics of an endangered and TGRA endemic fern, Adiantum reniforme var. sinense. For eight nuclear microsatellites, high levels of genetic diversity (H(E) = 0.653-0.781) and slightly elevated inbreeding (F(IS) = 0.077-0.197) were found across 13 surveyed populations. The population history of this fern is characterized by a balance of gene flow and genetic drift, where historical dispersal, inferred from coalescent (F = 0.129) and genetic differentiation (F(ST) = 0.094 and R(ST) = 0.180) approaches, is moderate, reflecting an isolation by distance relationship. Importantly, most populations exhibited mutation-drift disequilibrium, suggesting a recent population decline, which is congruent with the known demographic history of the species following dam-related activities. Based on these results, populations of A. reniforme var. sinense are expected to lose genetic diversity and increase genetic structure as dam-related activities decrease size and increase genetic isolation of remnants.
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
语种	英语
出版者	WILEY-BLACKWELL
WOS记录号	WOS:000258376800008
内容类型	期刊论文
源URL	[http://202.127.146.157/handle/2RYDP1HH/1081]
专题	中国科学院武汉植物园
通讯作者	Kang, Ming
作者单位	1.Univ Adelaide, Sch Earth & Environm Sci, Adelaide, SA 5000, Australia 2.State Herbarium, Adelaide, SA, Australia 3.Chinese Acad Sci, S China Bot Garden, Guangzhou 510650, Guangdong, Peoples R China 4.Chinese Acad Sci, Wuhan Bot Garden, Wuhan 430074, Peoples R China 5.Univ Adelaide, Sch Earth & Environm Sci, Adelaide, SA 5000, Australia
推荐引用方式 GB/T 7714	Kang, Ming,Huang, Hongwen,Jiang, Mingxi,et al. Understanding population structure and historical demography in a conservation context: population genetics of an endangered fern[J]. DIVERSITY AND DISTRIBUTIONS,2008,14(5):799-807.
APA	Kang, Ming,Huang, Hongwen,Jiang, Mingxi,&Lowe, Andrew J..(2008).Understanding population structure and historical demography in a conservation context: population genetics of an endangered fern.DIVERSITY AND DISTRIBUTIONS,14(5),799-807.
MLA	Kang, Ming,et al."Understanding population structure and historical demography in a conservation context: population genetics of an endangered fern".DIVERSITY AND DISTRIBUTIONS 14.5(2008):799-807.