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题名: The population genetic structure and diversification of Aristolochia delavayi (Aristolochiaceae), an endangered species of the dry hot valleys of the Jinsha River, southwestern China
作者: Yang, Zhi-Yun1; null(伊廷双)2; Zeng, Liang-Qin1; null(龚洵)1
刊名: BOTANY-BOTANIQUE
关键词: Aristolochia delavayi ; ISSR ; phylogeographic ; Hengduan Mountains ; conservation ; contraction
英文摘要: Aristolochia delavayi Franch. is an endangered species of the dry hot valleys of the Jinsha River, southwestern China. The genetic diversity and structure of the species and the occurrence of gene flow were investigated with eight inter-simple sequence repeat (ISSR) markers and four plastid loci (matK, trnL-trnT, rps4-trnT, and trnC-rpoB). The analysis of ISSR markers indicated that the genetic diversity of the species is relatively high (PPB = 84.71%). Similarly, a high gene diversity of H-T = 0.833 was found based on the four plastid loci. It is possible that this species previously maintained a large effective population size and that the current relict distribution of the species is a result of large-scale fragmentation and habitat destruction. The origin of the species at approximately 3.407 million years ago and the ensuing intraspecific divergence are generally consistent with the history of two major glaciations in this region. Conservation measures are urgently needed to increase the genetic diversity and population size of this species through both in-and ex-situ action.
出版日期: 2014-08-01
卷号: 92, 期号:8, 页码:579-587
语种: 英语
收录类别: SCI
学科分类: Plant Sciences
ISSN号: 1916-2790
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/18406
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, Yunnan, Peoples R China
2.Chinese Acad Sci, Kunming Inst Bot, Germplasm Bank Wild Species, Key Lab Biodivers & Biogeog,Plant Germplasm & Gen, Kunming 650201, Yunnan, Peoples R China

Recommended Citation:
Yang,Zhi-Yun;Yi,Ting-Shuang;Zeng,Liang-Qin;Gong,Xun.The population genetic structure and diversification of Aristolochia delavayi (Aristolochiaceae), an endangered species of the dry hot valleys of the Jinsha River, southwestern China,BOTANY-BOTANIQUE,2014,92(8):579-587
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