Genetic diversity and geographic differentiation in endangered Ammopiptanthus (Leguminosae) populations in desert regions of northwest China as revealed by ISSR analysis

CORC > 新疆生态与地理研究所 > 中国科学院新疆生态与地理研究所 > 中国科学院新疆生态与地理研究所(2010年以前数据)

	Genetic diversity and geographic differentiation in endangered Ammopiptanthus (Leguminosae) populations in desert regions of northwest China as revealed by ISSR analysis
	Ge ; XJ ; Yu ; Y ; Yuan ; YM ; Huang ; HW ; Yan ; C
刊名	ANNALS OF BOTANY
	2005
卷号	95 期号:5 页码:843-851
关键词	CLONAL DIVERSITY MARKERS DESERTIFICATION POACEAE RARE RAPD
ISSN号	0305-7364
通讯作者	Ge, XJ, Chinese Acad Sci, S China Bot Garden, Guangzhou 510650, Peoples R China
中文摘要	center dot Background and Aims The desert legume genus Ammopiptanthus comprises two currently endangered species, A. mongolicus and A. nanus. Genetic variability and genetic differentiation between the two species and within each species were examined. center dot Methods Inter-simple sequence repeal. (ISSR) marker data were obtained and analysed with respect to genetic diversity, structure and gene flow. center dot Key Results Despite the morphological similarity between A. mongolicus and A. nanus, the two species are genetically distinct from each other, indicated by 63 % species-specific bands. Low genetic variability was detected for both population level (Shannon indices of diversity H-pop = 0. 106, percentage of polymorphic loci P = 18-55 % for A. mongolicus; H-pop = 0.070, P = 12-24 % for A. nanus) and species level (H-sp= 0. 1832, P= 39-39 % for A. mongolicus; H-sp = 0. 1026, P = 25-89 % for A. nanus). Moderate genetic differentiation was found based on different measures (AMOVA phi(ST) and Hickory theta(B)) in both A. mongolicus (0-3743-0-3744) and A. nanus (0-2162-0-2369). center dot Conclusions The significant genetic difference between the two species might be due to a possible vicariant evolutionary event from a single common ancestor through the fragmentation of their common ancestor's range. Conservation strategies for these two endangered species are proposed.
学科主题	植物分类学
收录类别	SCI
公开日期	2011-08-19
内容类型	期刊论文
源URL	[http://ir.xjlas.org/handle/365004/10528]
专题	新疆生态与地理研究所_中国科学院新疆生态与地理研究所(2010年以前数据)
推荐引用方式 GB/T 7714	Ge,XJ,Yu,et al. Genetic diversity and geographic differentiation in endangered Ammopiptanthus (Leguminosae) populations in desert regions of northwest China as revealed by ISSR analysis[J]. ANNALS OF BOTANY,2005,95(5):843-851.
APA	Ge.,XJ.,Yu.,Y.,Yuan.,...&C.(2005).Genetic diversity and geographic differentiation in endangered Ammopiptanthus (Leguminosae) populations in desert regions of northwest China as revealed by ISSR analysis.ANNALS OF BOTANY,95(5),843-851.
MLA	Ge,et al."Genetic diversity and geographic differentiation in endangered Ammopiptanthus (Leguminosae) populations in desert regions of northwest China as revealed by ISSR analysis".ANNALS OF BOTANY 95.5(2005):843-851.