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

Research output: Contribution to journalArticle

7 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)3635-3647
Number of pages13
JournalInternational journal of molecular sciences
Volume12
Issue number6
DOIs
Publication statusPublished - 2011 Jun 1

Keywords

  • Collared Finchbill
  • East Asia
  • Phylogeography
  • Unglaciated region

ASJC Scopus subject areas

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

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