干旱区生态环境知识资源中心(Arid): Mating system and genetic diversity of a rare desert legume Ammopiptanthus nanus (Leguminosae)

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	Mating system and genetic diversity of a rare desert legume Ammopiptanthus nanus (Leguminosae)
	Guo-Qing CHEN; Hong-Wen HUANG; Daniel J CRAWFORD; Bo-Rong PAN; Xue-Jun GE
来源期刊	Journal of Systematics and Evolution
ISSN	1674-4918
出版年	2009
卷号	47 期号:1 页码:57-66
英文摘要	Ammopiptanthus nanus is an endangered evergreen shrub endemic to the deserts of central Asia and plays an important role in delaying further desertification. We examined allozyme variation and AFLP diversity in A. Nanus populations and investigated the mating system of this species using progeny arrays assayed for poly-morphic allozyme loci. Mating system analysis in the Keyi'eryongke'er population showed low levels of out-crossing, and strong inbreeding depression. Low levels of genetic variation were detected at both population (allozyme, Pp=14.0%,A=1.14, He=0.031; AFLP, Pp=14.5%, Shannon's information index I=0.063) and species (allozyme, Pp=21.1%,A=1.21, He=0.040; AFLP, Pp=20.9%, I=0.083) levels; while moderate genetic differentia-tion existed among populations, as indicated by allozymes (GST=0.081) and AFLP (GST=0.151-0.193). Founder effect, bottlenecks in evolutionary history, the mixed mating system and co-ancestry may have influenced the level of genetic diversity in A. Nanus. Markers of both types provide new insights for conservation management, indicating that the Biao'ertuokuoyi and Keyi'eryongke'er populations should be given priority for in situ conser-vation and regarded as seed sources for ex situ conservation.
英文关键词	AFLP, allozyme, Ammopiptanthus, conservation, endangered plant, genetic structure, outcrossing rate.
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Forestry
CSCD记录号	CSCD:3556649
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/334999
作者单位	Guo-Qing CHEN, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, Guangdong 510650, China.; Hong-Wen HUANG, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, Guangdong 510650, China.; Xue-Jun GE, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, Guangdong 510650, China.; Daniel J CRAWFORD, The University of Kansas, Lawrence, KS, KS 66045, USA.; Bo-Rong PAN, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, Xinjiang 830011, China.
推荐引用方式 GB/T 7714	Guo-Qing CHEN,Hong-Wen HUANG,Daniel J CRAWFORD,et al. Mating system and genetic diversity of a rare desert legume Ammopiptanthus nanus (Leguminosae)[J],2009,47(1):57-66.
APA	Guo-Qing CHEN,Hong-Wen HUANG,Daniel J CRAWFORD,Bo-Rong PAN,&Xue-Jun GE.(2009).Mating system and genetic diversity of a rare desert legume Ammopiptanthus nanus (Leguminosae).Journal of Systematics and Evolution,47(1),57-66.
MLA	Guo-Qing CHEN,et al."Mating system and genetic diversity of a rare desert legume Ammopiptanthus nanus (Leguminosae)".Journal of Systematics and Evolution 47.1(2009):57-66.