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Genetic structure of salsola junatovii (chenopodiaceae) in the northern edge of the taklimakan desert and conservational implications
Wen, Zhibin1; Xu, Zhe1,2; Shi, Xiaojun1,2; Zhang, Jie1,2; Zhang, Mingli1,3
刊名Biochemical systematics and ecology
2016-08-01
卷号67页码:86-94
关键词Salsola junatovii Intraspecific divergence Demographic expansion Gene flow Chenopodiaceae
ISSN号0305-1978
DOI10.1016/j.bse.2016.05.024
通讯作者Zhang, mingli(zhangml@ibcas.ac.cn)
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.
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Biochemistry & Molecular Biology ; Environmental Sciences & Ecology ; Evolutionary Biology
WOS类目Biochemistry & Molecular Biology ; Ecology ; Evolutionary Biology
语种英语
出版者PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号WOS:000379886100012
内容类型期刊论文
URI标识http://www.corc.org.cn/handle/1471x/2374558
专题中国科学院大学
通讯作者Zhang, Mingli
作者单位1.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Key Lab Biogeog & Bioresource Arid Land, CN-830011 Urumqi, Peoples R China
2.Univ Chinese Acad Sci, CN-100039 Beijing, 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.
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