Phylogeography of the seaweed Ishige okamurae (Phaeophyceae): Evidence for glacial refugia in the northwest Pacific region

Kyung Min Lee, Eun Chan Yang, James A. Coyer, Giuseppe C. Zuccarello, Wei Lui Wang, Chang Geun Choi, Sung Min Boo

研究成果: Article

27 引文 斯高帕斯(Scopus)

摘要

Although benthic marine algae are essential components of marine coastal systems that have been influenced profoundly by past and present climate change, our knowledge of seaweed phylogeography is limited. The brown alga Ishige okamurae Yendo occurs in the northwest Pacific, where it occupies a characteristic belt in the exposed intertidal zone. To understand the patterns of genetic diversity and the evolutionary history of this species, we analyzed mitochondrial cox3 from 14 populations (221 individuals) throughout its range. The 17 haplotypes found in this study formed five distinct clades, indicating significant genetic structure. The high differentiation and number of unique (private) haplotypes may result from the recolonization of the species from glacial refugia. Three putative refugia, each with high genetic diversity, were identified: southern Korea (including Jeju Island), northern Taiwan, and central Pacific Japan. Recolonization of I. okamurae was probably determined by ocean currents and changes in sea level during the last glacial period.

原文English
頁(從 - 到)1021-1028
頁數8
期刊Marine Biology
159
發行號5
DOIs
出版狀態Published - 2012 五月 1

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Aquatic Science
  • Ecology

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