High genetic diversity in a rare, narrowly endemic primrose species: Primula interjacens by ISSR analysis

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	High genetic diversity in a rare, narrowly endemic primrose species: Primula interjacens by ISSR analysis
	Xue, DW ; Ge, XJ ; Hao, G ; Zhang, CQ
通讯作者	zhangchangqin@mail.kib.ac.cn
	2004-10-01
发表期刊	ACTA BOTANICA SINICA
ISSN	1672-6650
卷号	46 期号:10 页码:1163-1169
摘要	Primula interjacens Chen (Primulaceae) is a rare and narrow endemic species of centralsouth of Yunnan Province in China. This species consists of two varieties: P. interjacens var. interjacens known with only one population, and P interjacens var. epilosa with two populations. Inter-simple sequence repeat (ISSR) marker was used to detect the genetic diversity of the three extant populations. We expected a low genetic diversity level, but our results revealed a high level of intraspecific genetic diversity (at population level: P = 59.75%, H-E = 0.236 8, and Hpop 0.345 9; at species level: P =75.47%, H-T= 0.320 5, and Hsp = 0.461 8), probably resulting from floral heteromorphism and preferring outcrossing. A moderate level of genetic differentiation among populations was detected based on Nei's genetic diversity analysis (26.13%) and Shannon's diversity index (25.09%). Although P interjacens var. interjacens and P interjacens var. epilosa were morphologically distinct, UPGMA cluster analysis showed that the two varieties had no distinct genetic differentiation and may be treated as a single taxon. Conservation measures are suggested, including in situ and ex situ strategies, based on the observed population genetic information.
关键词	Primula Interjacens Endemic Issr Genetic Diversity Variety Conservation Strategy
学科领域	Biochemistry & Molecular Biology ; Plant Sciences
收录类别	SCI
语种	英语
WOS记录号	WOS:000224622100005
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/13509
专题	离退休
作者单位	1.Chinese Acad Sci, Kunming Inst Bot, Kunming 650204, Peoples R China 2.Chinese Acad Sci, S China Bot Garden, Guangzhou 510650, Peoples R China
推荐引用方式 GB/T 7714	Xue, DW,Ge, XJ,Hao, G,et al. High genetic diversity in a rare, narrowly endemic primrose species: Primula interjacens by ISSR analysis[J]. ACTA BOTANICA SINICA,2004,46(10):1163-1169.
APA	Xue, DW,Ge, XJ,Hao, G,&Zhang, CQ.(2004).High genetic diversity in a rare, narrowly endemic primrose species: Primula interjacens by ISSR analysis.ACTA BOTANICA SINICA,46(10),1163-1169.
MLA	Xue, DW,et al."High genetic diversity in a rare, narrowly endemic primrose species: Primula interjacens by ISSR analysis".ACTA BOTANICA SINICA 46.10(2004):1163-1169.

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