An unstructured phylogeographic pattern with extensive gene flow in an endemic bird of South China: Collared finchbill (Spizixos semitorques)

Bin Gao, Lijiang Yu, Yanhua Qu, Gang Song, Chuanyin Dai, Ruiying Zhang, Zuohua Yin, Kaifeng Wang, Xuebin Gao, Shou Hsien Li, Fumin Lei

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    7 引文 斯高帕斯(Scopus)

    摘要

    Recent phylogeographical studies indicated that glacial oscillations played a key role on the phylogeographic pattern of extant species. As most studies have previously been carried out on heavily ice-covered regions, such as in European and North American regions, potential effects of climatic oscillations on species that are distributed on ice-free regions are less known. To address this, we investigated the phylogeographic pattern of an avian species endemic to South China, which was not glaciated during the Pleistocene glaciations. By using 2142 bp mitochondrial DNA, we identified 89 haplotypes defined by 39 polymorphic sites. A combination of high haplotype diversity (0.786-1.00) and low nucleotide diversity (0.00132-0.00252) was detected among geographic populations. Explicit genetic divergence was observed between S. s. semitorques and S. s. cinereicapillus but not detected among geographic populations of S. s. semitorques. Divergence time of the two subspecies was dated back to 87 Kyr which is congruent with the interglacial MIS 5. A weak phylogeographic structure due to strong gene flow among geographic populations was identified in this species, suggesting complex topography of South China has not formed barriers for this species.

    原文英語
    頁(從 - 到)3635-3647
    頁數13
    期刊International journal of molecular sciences
    12
    發行號6
    DOIs
    出版狀態已發佈 - 2011 六月

    ASJC Scopus subject areas

    • Catalysis
    • Molecular Biology
    • Spectroscopy
    • Computer Science Applications
    • Physical and Theoretical Chemistry
    • Organic Chemistry
    • Inorganic Chemistry

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