Mitochondrial DNA evidence of an early Holocene population expansion of threespine sticklebacks from Scotland

被引：11
作者：
Malhi, Ripan S.
Rhett, Gillian
Bell, Alison M.
机构：
[1] Univ Calif Davis, Dept Anthropol, Davis, CA 95616 USA
[2] Trace Genet Inc, DNAPrint Genom Co, Richmond, CA 94804 USA
[3] Univ Glasgow, Glasgow G12 8QQ, Lanark, Scotland
来源：
MOLECULAR PHYLOGENETICS AND EVOLUTION | 2006年 / 40卷 / 01期
关键词：
genetic structure; haplogroup; migration; Gasterosteus aculeatus; cytochrome b; gene flow; population expansion; stickleback;
D O I：
10.1016/j.ympev.2006.02.019
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
In this study, we analyzed the cytochrome b gene in threespine stickleback (Gasterosteus aculeatus) populations from Scotland. We found evidence of a postglacial population expansion in Scotland and large differences in genetic diversity estimates among populations. Higher levels of genetic diversity are negatively correlated with distance from the ocean. In addition, distance from the ocean and predation risk both explain variation in plate count in Scottish populations. Overall, the mtDNA data support the racemic model of evolution in threespine stickleback. (c) 2006 Elsevier Inc. All rights reserved.
引用
收藏
页码：148 / 154
页数：7
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