Mitochondrial DNA phylogeography of Glyptothorax fokiensis and Glyptothorax hainanensis in Asia

X. L. Chen, T. Y. Chiang, H. D. Lin, H. S. Zheng, K. T. Shao, Q. Zhang, K. C. Hsu

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)

Abstract

Whole mitochondrial DNA cytochrome b sequences in 62 fish from 13 locations in Southeast China identified two major clades corresponding to two allopatric taxa, Glyptothorax fokiensis fokiensis and Glyptothorax fokiensis hainanensis. Reciprocal monophyly and a molecular clock separation between these two taxa of 2.3 million years indicate these taxa should be elevated to species. Mismatch distributions and Fu's FS statistic suggest that both G. fokiensis and G. hainanensis have experienced recent population expansions. Analysis of molecular variance indicates that most of the genetic variation resides among populations within both species, with ΦST = 0.645 for G. fokiensis and 0.801 for G. hainanensis, suggesting restricted gene flow among populations. Significant correlations between the geographic and the genetic distances provide support for the importance of geographic isolations between populations. Nested clade analysis also confirms low levels of genetic exchanges between the two major groups and between populations within each group. The phylogeographical pattern among populations of Glyptothorax in East Asia can be attributed to historical fragmentations, demographic expansions and occasional long-distance dispersals stimulated by tectonic activity and Ice Age climate changes.

Original languageEnglish
Pages (from-to)75-93
Number of pages19
JournalJournal of Fish Biology
Volume70
Issue numberSUPPL. A
DOIs
Publication statusPublished - 2007 Mar 1

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Aquatic Science

Fingerprint Dive into the research topics of 'Mitochondrial DNA phylogeography of Glyptothorax fokiensis and Glyptothorax hainanensis in Asia'. Together they form a unique fingerprint.

Cite this