首页|Phylogeography of an alpine plant (Bupleurum smithii, Apiaceae) endemic to the Qinghai-Tibetan Plateau and adjacent regions inferred from chloroplast DNA sequence variation

Phylogeography of an alpine plant (Bupleurum smithii, Apiaceae) endemic to the Qinghai-Tibetan Plateau and adjacent regions inferred from chloroplast DNA sequence variation

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To obtain a better understanding of how Quaternary climatic oscillations influenced range distributions and intraspecific split of alpine plants on the Qinghai-Tibetan Plateau (QTP) and in adjacent regions,we investigated the extant phylogeographical structure of Bupleurum smithii in this area based on 22 populations and 103 individuals spanning the entire distribution region of this species using chloroplast DNA sequences.Two major haplotype lineages were identified,and at least two corresponding glacial refugia maintaining in the northeastern and eastern edge of the QTP during the Last Glacial Maximum were revealed.Secondary contact between populations and efficient gene flow were also found between two major haplotype lineages.In addition,based on the geographic distribution of haplotypes,we found that populations on the platform derived from individuals that recolonized this area from refugia situated at the northeastem and eastern edges of the QTP,and that B.smithii recolonized from southern to northern China during inter-and post-glacial periods.

Bupleurum smithiiphylogeographyQuaternary climatic oscillationQinghai-Tibetan Plateau

Cai ZHAO、Xiang-Guang MA、Qian-Long LIANG、Chang-Bao WANG、Xing-Jin HE

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Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, China

国家自然科学基金国家自然科学基金国家自然科学基金Doctoral Fund of the Ministry of Education of ChinaBasic Research Program from the Ministry of Science and Technology of ChinaSpecimen Platform of China,Teaching Specimens Sub-platform (http://mnh.scu.edu.cn/)

312702413107016631100161200901811100642007FY110100

2013

10.1111/jse.12005

植物分类学报
中国科学院植物研究所　中国植物学会

植物分类学报

CSTPCDCSCDSCI
影响因子：0.322
ISSN：1674-4918
年,卷(期)：2013.51(4)
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