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题名: Molecular phylogeography and conservation genetics of Sladenia celastrifolia inferred from chloroplast DNA sequence variation
作者: Lu, Xi1, 2; Chen, Li1, 3; Chen, Ya-Ping1, 2; null(彭华)1
刊名: JOURNAL OF SYSTEMATICS AND EVOLUTION
关键词: chloroplast DNA ; conservation ; genetic structure ; phylogeography ; Sladenia celastrifolia
英文摘要: The genetic variation and structure of Sladenia celastrifolia Kurz, a species of conservation concern, were investigated. Analyses of two chloroplast DNA loci (trnS-trnG and atpB-rbcL intergenic regions) were carried out for 24 populations of S. celastrifolia and five haplotypes were identified. High levels of genetic differentiation (G(ST) = 1, F-ST = 1) were detected, which may be a result of limited gene flow caused by geographic isolation. Analysis of molecular variance suggests that the existence of marked phylogeographical structure within the haplotype distribution is probably due to geographic barriers among populations. The haplotype network and mismatch distribution analyses did not detect any signals for recent population expansions in S. celastrifolia. Thus, it can be inferred that the species likely persisted in situ during climatic oscillations. Considering its genetic diversity and uniqueness, conservation strategies are further discussed for this species.
出版日期: 2014-07-01
卷号: 52, 期号:4, 页码:458-465
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/151853/18287
Appears in Collections:中国科学院东亚植物多样性与生物地理学重点实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Biodivers & Biogeog, Kunming 650201, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Southwest Forestry Univ, Kunming 650224, Peoples R China

Recommended Citation:
Lu,Xi;Chen,Li;Chen,Ya-Ping;Peng,Hua.Molecular phylogeography and conservation genetics of Sladenia celastrifolia inferred from chloroplast DNA sequence variation,JOURNAL OF SYSTEMATICS AND EVOLUTION,2014,52(4):458-465
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