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题名: Phylogeography of an alpine plant Ligularia vellerea (Asteraceae) in the Hengduan Mountains
作者: Yang, Zhi-Yun1; null(伊廷双)2; Pan, Yue-Zhi1; null(龚洵)1
刊名: JOURNAL OF SYSTEMATICS AND EVOLUTION
关键词: geographical distance ; Hengduan Mountains region ; Ligularia vellerea ; phylogeography
英文摘要: The Hengduan Mountains region is considered to be an important reservoir and a differentiation center for temperate and alpine plants during the Cenozoic. To reveal the effects of extreme topography and climate on an organism's population genetic structure in this region, a phylogeographic study has been carried out for Ligularia vellerea. We sequenced two chloroplast DNA fragments, trnH-psbA and trnL-rpl32, for 157 individuals of 15 populations and a total of 14 haplotypes were identified. These haplotypes clustered into five clades and each of them was mainly distributed in the restricted regions. A strong phylogeographic structure of this species was detected (NST= 0.851, GST= 0.713; NST > GST, P < 0.01). The strong population differentiation in L. vellerea could be attributed to the repeated glacial/interglacial cycles during the Pleistocene, which has been further enhanced by restricted gene flow caused by the complicated topography in the Hengduan Mountains region that formed during the uplift of the QinghaiTibet Plateau.
出版日期: 2012-07-01
卷号: 50, 期号:4, 页码:316-324
DOI标识: 10.1111/j.1759-6831.2012.00199.x
语种: 英语
收录类别: SCI
学科分类: Plant Sciences
ISSN号: 1674-4918
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/15129
Appears in Collections:资源植物与生物技术所级重点实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Econ Plants & Biotechnol, Kunming 650201, Peoples R China
2.Chinese Acad Sci, Plant Germplasm & Genom Ctr, Germplasm Bank Wild Species, Key Lab Biodivers & Biogeog,Kunming Inst Bot, Kunming 650201, Peoples R China

Recommended Citation:
Yang, Zhi-Yun; Yi, Ting-Shuang; Pan, Yue-Zhi; Gong, Xun.Phylogeography of an alpine plant Ligularia vellerea (Asteraceae) in the Hengduan Mountains,JOURNAL OF SYSTEMATICS AND EVOLUTION,2012,50(4):316-324
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