期刊
MITOCHONDRIAL DNA
卷 25, 期 2, 页码 150-156出版社
TAYLOR & FRANCIS LTD
DOI: 10.3109/19401736.2013.792053
关键词
Control region; genetic structure; Macrodon atricauda; southern king weakfish; southwestern Atlantic
资金
- CNPq [306233/2009-6, 141224/2008-8]
- FAPESPA (PRONEX)
We investigated the genetic structure and diversity of M. atricauda, based on 266 specimens collected off the coast of southern Brazil and Argentina at seven locations, covering the whole geographic distribution of this species. A DNA sequence alignment of 904 base pairs of the mitochondrial Control Region revealed a total of 85 haplotypes. F-ST analyses suggest that M. atricauda does not comprise a single demographic stock. Two different genetic units are identified, which possibly are related to ecological adaptations of the species within its range. Genetic diversity, Bayesian analysis of population structure, and significant negative results for the D and FS tests indicate that M. atricauda populations have undergone recent expansion. The spatial distribution of genetic variation seems to be related to historical colonization from south to north, followed by expansion.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据