Genetic structure of Salsola junatovii (Chenopodiaceae) in the northern edge of the Taklimakan desert and conservational implications

doi:10.1016/j.bse.2016.05.024

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	Genetic structure of Salsola junatovii (Chenopodiaceae) in the northern edge of the Taklimakan desert and conservational implications
	Wen, Zhibin ; Xu, Zhe 2; Shi, Xiaojun 2; Zhang, Jie 2; Zhang, Mingli 1
刊名	BIOCHEMICAL SYSTEMATICS AND ECOLOGY
	2016
卷号	67 页码:86-94
关键词	Salsola junatovii Intraspecific divergence Demographic expansion Gene flow Chenopodiaceae
ISSN号	0305-1978
DOI	10.1016/j.bse.2016.05.024
文献子类	Article
英文摘要	Salsola junatovii Botsch. (Chenopodiaceae), a desert shrub endemic to the northern edge of the Taklimakan desert in China, is listed as an endangered species because of its narrow habitat requirements and a decline in numbers of individuals. In order to provide information on conservation strategies, we investigated the genetic patterns and evolutionary history of this species. Two cpDNA spacers, (psbA-trnH and psbK-psbI), and the nrITS sequence were employed in 116 individuals from 15 populations across the whole range of the species. A total of 7 haplotypes and 12 ribotypes were detected. Based on separate BEAST analyses, we suggest that intraspecific differentiation of S. junatovii occurred at 2.284-0.264 Ma for cpDNA haplotypes, and 1.304-0.1 Ma for nrITS ribotypes, both in the Pleistocene. Only mismatch analysis and neutrality tests for nrITS sequences over all populations were indicative of demographic expansion. Inconsistency between results from chloroplast and nuclear sequences was detected, apparently due to a stronger seed mediated gene flow among populations than pollen-mediated flow under the severe desert conditions. Based on genetic structure results, one population, KMS, with the highest number of unique genotypes, should be a conservation priority; another nine populations containing unique genotypes were suggested for ex situ conservation. (C) 2016 Elsevier Ltd. All rights reserved.
学科主题	Biochemistry & Molecular Biology ; Ecology ; Evolutionary Biology
电子版国际标准刊号	1873-2925
出版地	OXFORD
WOS关键词	CLIMATIC OSCILLATIONS ; TIBETAN PLATEAU ; NORTHWEST CHINA ; CHLOROPLAST GENOME ; STATISTICAL-METHOD ; CENTRAL-ASIA ; EVOLUTION ; QUATERNARY ; PHYLOGEOGRAPHY ; NUCLEAR
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000379886100012
资助机构	Xinjiang Uygur Autonomous Region Youth Science and Technology Innovative Personnel Training Project [2013731030]
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/24937]
专题	系统与进化植物学国家重点实验室
作者单位	1.Univ Chinese Acad Sci, CN-100039 Beijing, Peoples R China 2.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Key Lab Biogeog & Bioresource Arid Land, CN-830011 Urumqi, Peoples R China 3.Chinese Acad Sci, Inst Bot, CN-100093 Beijing, Peoples R China
推荐引用方式 GB/T 7714	Wen, Zhibin,Xu, Zhe,Shi, Xiaojun,et al. Genetic structure of Salsola junatovii (Chenopodiaceae) in the northern edge of the Taklimakan desert and conservational implications[J]. BIOCHEMICAL SYSTEMATICS AND ECOLOGY,2016,67:86-94.
APA	Wen, Zhibin,Xu, Zhe,Shi, Xiaojun,Zhang, Jie,&Zhang, Mingli.(2016).Genetic structure of Salsola junatovii (Chenopodiaceae) in the northern edge of the Taklimakan desert and conservational implications.BIOCHEMICAL SYSTEMATICS AND ECOLOGY,67,86-94.
MLA	Wen, Zhibin,et al."Genetic structure of Salsola junatovii (Chenopodiaceae) in the northern edge of the Taklimakan desert and conservational implications".BIOCHEMICAL SYSTEMATICS AND ECOLOGY 67(2016):86-94.