Genetic structure of the endangered Leucomeris decora (Asteraceae) in China inferred from chloroplast and nuclear DNA markers

doi:10.1007/s10592-011-0281-2

	Genetic structure of the endangered Leucomeris decora (Asteraceae) in China inferred from chloroplast and nuclear DNA markers
	Zhao, Yu Juan 1,2; Gong, Xun1
通讯作者	Gong, X (reprint author), Chinese Acad Sci, Kunming Inst Bot, Key Lab Biodivers & Biogeog, Kunming 650204, Peoples R China, gongxun@mail.kib.ac.cn
	2012-02-01
发表期刊	CONSERVATION GENETICS
ISSN	1566-0621
卷号	13 期号:1 页码:271-281
摘要	The genetic variation and structure of Leucomeris decora, an endangered species in China were investigated. Analyses of three chloroplast DNA (cpDNA) regions (the rpl16 intron, trnQ-5' rps16 intergenic spacer and rpl32-trnL intergenic spacer) and one nuclear gene (GAPDH: encoding glyceraldehyde 3-phosphate dehydrogenase) were conducted on 11 L. decora populations. Low levels of cpDNA genetic diversity were found in this species and within populations, with the identification of 2 haplotypes in a total of 2,745 bp, while the level of genetic diversity revealed by the nuclear gene GAPDH was relatively high, indicating that random losses of genetic polymorphisms from populations may have occurred recently. High levels of genetic differentiation among populations for both markers were detected in L. decora, which could be a consequence of the limited gene flow caused by geographic isolation among populations. An analysis of molecular variance revealed at the nuclear locus suggested the presence of geographic structure within the haplotype distribution possibly due to geographical barriers among populations. The haplotype network and mismatch distribution analyses did not detect the signal for a recent population expansion in L. decora. L. decora may persist in situ during climatic oscillations. Based on the genetic diversity and uniqueness of the populations, conservation strategies are discussed for this endangered species.
关键词	Leucomeris Decora Chloroplast Dna Gapdh Genetic Structure Phylogeography Conservation
学科领域	Biodiversity Conservation ; Genetics & Heredity
DOI	10.1007/s10592-011-0281-2
收录类别	SCI
语种	英语
WOS记录号	WOS:000303475800022
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/10507
专题	资源植物与生物技术所级重点实验室
作者单位	1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Biodivers & Biogeog, Kunming 650204, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Yu Juan,Gong, Xun. Genetic structure of the endangered Leucomeris decora (Asteraceae) in China inferred from chloroplast and nuclear DNA markers[J]. CONSERVATION GENETICS,2012,13(1):271-281.
APA	Zhao, Yu Juan,&Gong, Xun.(2012).Genetic structure of the endangered Leucomeris decora (Asteraceae) in China inferred from chloroplast and nuclear DNA markers.CONSERVATION GENETICS,13(1),271-281.
MLA	Zhao, Yu Juan,et al."Genetic structure of the endangered Leucomeris decora (Asteraceae) in China inferred from chloroplast and nuclear DNA markers".CONSERVATION GENETICS 13.1(2012):271-281.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Zhao-2012-Genetic st（416KB）			开放获取	--	浏览下载