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Westwards and northwards dispersal of Triosteum himalayanum (Caprifoliaceae) from the Hengduan Mountains region based on chloroplast DNA phylogeography
Liu, Hai-rui1,3; Gao, Qing-bo1,2; Zhang, Fa-qi1; Khan, Gulzar1; Chen, Shi-long1
2018-05-11
发表期刊PEERJ
ISSN2167-8359
卷号6
文章类型Article
摘要The varying topography and environment that resulted from paleoorogeny and climate fluctuations of the Himalaya-Hengduan Mountains (HHM) areas had a considerable impact on the evolution of biota during the Quaternary. To understand the phylogeographic pattern and historical dynamics of Triosteum himalayanum (Caprifoliaceae), we sequenced three chloroplast DNA fragments (rbcL-accD, rps15-ycf1, and trnH-psbA) from 238 individuals representing 20 populations. Nineteen haplotypes (H1-H19) were identified based on 23 single-site mutations and eight indels. Most haplotypes were restricted to a single population or neighboring populations. Analysis of molecular variance revealed that variations among populations were much higher than that within populations for the overall gene pool, as well as for the East Himalayan group (EH group) and the North Hengduan group (NHM group), but not for the Hengduan Mountains group (HM group). Ecoregions representing relatively high genetic diversity or high frequencies of private haplotypes were discovered, suggesting that this alpine herbaceous plant underwent enhanced allopatric divergence in isolated and fragmented locations during the Quaternary glaciations. The current phylogeographic structure of T. himalayanum might be due to heterogeneous habitats and Quaternary climatic oscillations. Based on the phylogeographic structure of T. himalayanum populations, the phylogenetic relationship of identified haplotypes and palaeodistributional reconstruction, we postulated both westwards and northwards expansion from the HM group for this species. The westwards dispersal corridor could be long, narrowmountain areas and/or the Yarlung Zangbo Valley, while the northwards movement path could be south-north oriented mountains and low-elevation valleys.
关键词Chloroplast Dna Palaeodistributional Reconstruction Himalaya-hengduan Mountains Phylogeography Range Expansion
WOS标题词Science & Technology
DOI10.7717/peerj.4748
关键词[WOS]QINGHAI-TIBETAN PLATEAU ; CLIMATE-CHANGE ; MOLECULAR PHYLOGEOGRAPHY ; GENETIC DIFFERENTIATION ; EVOLUTIONARY HISTORY ; BIODIVERSITY HOTSPOT ; PICEA-LIKIANGENSIS ; QUATERNARY CLIMATE ; POPULATION-GROWTH ; ADJACENT REGIONS
收录类别SCI
语种英语
项目资助者National Natural Science Foundation of China(31110103911) ; Science and Technology Basic Work, Project of the Ministry of Science and Technology, China(2013FY112100 ; Applied Basic Research Programs of Qinghai Province, China(2016-ZJ-761) ; Youth Innovation Promotion Association CAS(2016378) ; CAS "Light of West China" Program ; Construction Project for Innovation Platform of Qinghai province(2017-ZJ-Y14) ; 2015FY110500)
WOS研究方向Science & Technology - Other Topics
WOS类目Multidisciplinary Sciences
WOS记录号WOS:000432018300005
出版者PEERJ INC
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://210.75.249.4/handle/363003/13849
专题中国科学院西北高原生物研究所
通讯作者Gao, Qing-bo; Chen, Shi-long
作者单位1.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining, Qinghai, Peoples R China
2.Qinghai Prov Key Lab Crop Mol Breeding, Xining, Qinghai, Peoples R China
3.Univ Chinese Acad Sci, Beijing, Peoples R China
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GB/T 7714
Liu, Hai-rui,Gao, Qing-bo,Zhang, Fa-qi,et al. Westwards and northwards dispersal of Triosteum himalayanum (Caprifoliaceae) from the Hengduan Mountains region based on chloroplast DNA phylogeography[J]. PEERJ,2018,6.
APA Liu, Hai-rui,Gao, Qing-bo,Zhang, Fa-qi,Khan, Gulzar,&Chen, Shi-long.(2018).Westwards and northwards dispersal of Triosteum himalayanum (Caprifoliaceae) from the Hengduan Mountains region based on chloroplast DNA phylogeography.PEERJ,6.
MLA Liu, Hai-rui,et al."Westwards and northwards dispersal of Triosteum himalayanum (Caprifoliaceae) from the Hengduan Mountains region based on chloroplast DNA phylogeography".PEERJ 6(2018).
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