Refugial isolation and range expansions drive the genetic structure of Oxyria sinensis (Polygonaceae) in the Himalaya-Hengduan Mountains
Meng, Lihua1; Chen, Gang2; Li, Zhonghu3; Yang, Yongping4; Wang, Zhengkun1; Wang, Liuyang5; Meng,LH (reprint author),Yunnan Normal Univ,Sch Life Sci,Engn Res Ctr Sustainable Dev & Utilizat Biomass E,Minist Educ,Kunming 650092,Yunnan,Peoples R China.; menglihua@mails.gucas.ac.cn; lw157@duke.edu
2015-05-27
发表期刊SCIENTIFIC REPORTS
卷号5页码:10396
摘要The formation of the Mekong-Salween Divide and climatic oscillations in Pleistocene were the main drivers for the contemporary diversity and genetic structure of plants in the Himalaya-Hengduan Mountains (HHM). To identify the relative roles of the two historical events in shaping population history of plants in HHM, we investigated the phylogeographic pattern of Oxyria sinensis, a perennial plant endemic to the HHM. Sixteen chloroplast haplotypes were identified and were clustered into three phylogenetic clades. The age of the major clades was estimated to be in the Pleistocene, falling into several Pleistocene glacial stages and postdating the formation of the Mekong-Salween Divide. Range expansions occurred at least twice in the early and middle Pleistocene, but the spatial genetic distribution rarely changed since the Last Glacial Maximum. Our results suggest that temporary mountain glaciers may act as barriers in promoting the lineage divergence in Oxyria sinensis and that subsequential range expansions and secondary contacts might reshape the genetic distribution in geography and blur the boundary of population differentiation created in the earlier glacial stages. This study demonstrates that Pleistocene climatic change and mountain glaciers, rather than the Mekong-Salween Divide, play the primary role in shaping the spatial genetic structure of Oxyria sinensis.
资助信息Natural Science Foundation of China [31160084, 41101058]; Ph.D. Programs Foundation of Ministry of Education of China [20115303120001]
学科领域Multidisciplinary Sciences
DOI10.1038/srep10396
收录类别SCI
语种英语
WOS研究方向Science & Technology - Other Topics
WOS类目Multidisciplinary Sciences
WOS记录号WOS:000355535000001
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文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/21314
专题资源植物与生物技术所级重点实验室
通讯作者Meng,LH (reprint author),Yunnan Normal Univ,Sch Life Sci,Engn Res Ctr Sustainable Dev & Utilizat Biomass E,Minist Educ,Kunming 650092,Yunnan,Peoples R China.; menglihua@mails.gucas.ac.cn; lw157@duke.edu
作者单位1.Yunnan Normal Univ, Sch Life Sci, Engn Res Ctr Sustainable Dev & Utilizat Biomass E, Minist Educ, Kunming 650092, Yunnan, Peoples R China
2.Univ Rhode Isl, Grad Sch Oceanog, Kingston, RI 02881 USA
3.NW Univ Xian, Coll Life Sci, Key Lab Resource Biol & Biotechnol Western China, Minist Educ, Xian 710069, Shanxi, Peoples R China
4.Chinese Acad Sci, Kunming Inst Bot, Kunming 650204, Yunnan, Peoples R China
5.Duke Univ, Dept Biol, Durham, NC 27708 USA
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Meng, Lihua,Chen, Gang,Li, Zhonghu,et al. Refugial isolation and range expansions drive the genetic structure of Oxyria sinensis (Polygonaceae) in the Himalaya-Hengduan Mountains[J]. SCIENTIFIC REPORTS,2015,5:10396.
APA Meng, Lihua.,Chen, Gang.,Li, Zhonghu.,Yang, Yongping.,Wang, Zhengkun.,...&lw157@duke.edu.(2015).Refugial isolation and range expansions drive the genetic structure of Oxyria sinensis (Polygonaceae) in the Himalaya-Hengduan Mountains.SCIENTIFIC REPORTS,5,10396.
MLA Meng, Lihua,et al."Refugial isolation and range expansions drive the genetic structure of Oxyria sinensis (Polygonaceae) in the Himalaya-Hengduan Mountains".SCIENTIFIC REPORTS 5(2015):10396.
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