Int. J. Mol. Sci. 2011, 12(6), 3635-3647; doi:10.3390/ijms12063635
Article

An Unstructured Phylogeographic Pattern with Extensive Gene Flow in an Endemic Bird of South China: Collared Finchbill (Spizixos semitorques)

1,2email, 3email, 1email, 1email, 1email, 1email, 1email, 4email, 4email, 5email and 1,* email
Received: 30 March 2011; in revised form: 24 May 2011 / Accepted: 3 June 2011 / Published: 7 June 2011
(This article belongs to the Special Issue Advances in Molecular Ecology)
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Abstract: 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.
Keywords: Collared Finchbill; East Asia; unglaciated region; phylogeography
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MDPI and ACS Style

Gao, B.; Yu, L.; Qu, Y.; Song, G.; Dai, C.; Zhang, R.; Yin, Z.; Wang, K.; Gao, X.; Li, S.-H.; Lei, F. An Unstructured Phylogeographic Pattern with Extensive Gene Flow in an Endemic Bird of South China: Collared Finchbill (Spizixos semitorques). Int. J. Mol. Sci. 2011, 12, 3635-3647.

AMA Style

Gao B, Yu L, Qu Y, Song G, Dai C, Zhang R, Yin Z, Wang K, Gao X, Li S-H, Lei F. An Unstructured Phylogeographic Pattern with Extensive Gene Flow in an Endemic Bird of South China: Collared Finchbill (Spizixos semitorques). International Journal of Molecular Sciences. 2011; 12(6):3635-3647.

Chicago/Turabian Style

Gao, Bin; Yu, Lijiang; Qu, Yanhua; Song, Gang; Dai, Chuanyin; Zhang, Ruiying; Yin, Zuohua; Wang, Kaifeng; Gao, Xuebin; Li, Shou-Hsien; Lei, Fumin. 2011. "An Unstructured Phylogeographic Pattern with Extensive Gene Flow in an Endemic Bird of South China: Collared Finchbill (Spizixos semitorques)." Int. J. Mol. Sci. 12, no. 6: 3635-3647.


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