Demographic history of a recent invasion of house mice on the isolated Island of Gough.
Demographic history of a recent invasion of house mice on the isolated Island of Gough.
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DOI：
10.1111/mec.12715
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发表时间：
2014-04
影响因子：
4.9
通讯作者：
Payseur BA
中科院分区：
文献类型：
--
作者：
Gray MM;Wegmann D;Haasl RJ;White MA;Gabriel SI;Searle JB;Cuthbert RJ;Ryan PG;Payseur BA
岛屿种群为研究进化变化的关键因素提供了天然实验室，包括自然选择，种群规模和新环境的殖民化。岛屿人口的人口历史可以从遗传多样性的模式重建。家鼠（Mus musculus）居住在遍布地球仪的岛屿上，使它们成为从遗传学角度研究岛屿殖民化的一个有吸引力的系统。戈夫岛位于南大西洋中部，是世界上最偏远的岛屿之一。家鼠是在世纪由海豹捕猎者引入戈夫岛的，并显示出不寻常的表型，包括异常大的体型和食肉行为。我们使用线粒体序列，核序列和微卫星描述戈夫岛小鼠的遗传变异。线粒体序列的系统发育分析表明，高夫岛小鼠属于小家鼠，母系可能起源于英国或法国。微卫星的聚类分析揭示了Gough Island小鼠在西欧多个沿海种群中的遗传成员资格，表明混合血统。戈夫岛小鼠表现出线粒体和核序列变异的大幅减少和微卫星多样性的微弱减少与西欧人群相比，符合人口瓶颈。近似贝叶斯计算（ABC）估计，小鼠最近殖民戈夫岛（约100年前），并经历了98%的人口规模减少，然后迅速扩大。我们的研究结果表明，不寻常的表型戈夫岛小鼠迅速演变，定位这些小鼠作为有用的模型，了解快速表型进化。
Island populations provide natural laboratories for studying key contributors to evolutionary change, including natural selection, population size, and the colonization of new environments. The demographic histories of island populations can be reconstructed from patterns of genetic diversity. House mice (Mus musculus) inhabit islands throughout the globe, making them an attractive system for studying island colonization from a genetic perspective. Gough Island, in the central South Atlantic Ocean, is one of the remotest islands in the world. House mice were introduced to Gough Island by sealers during the 19th century, and display unusual phenotypes, including exceptionally large body size and carnivorous feeding behavior. We describe genetic variation in Gough Island mice using mitochondrial sequences, nuclear sequences, and microsatellites. Phylogenetic analysis of mitochondrial sequences suggested that Gough Island mice belong to Mus musculus domesticus, with the maternal lineage possibly originating in England or France. Cluster analyses of microsatellites revealed genetic membership for Gough Island mice in multiple coastal populations in Western Europe, suggesting admixed ancestry. Gough Island mice showed substantial reductions in mitochondrial and nuclear sequence variation and weak reductions in microsatellite diversity compared with Western European populations, consistent with a population bottleneck. Approximate Bayesian Computation (ABC) estimated that mice recently colonized Gough Island (~100 years ago) and experienced a 98% reduction in population size followed by a rapid expansion. Our results indicate that the unusual phenotypes of Gough Island mice evolved rapidly, positioning these mice as useful models for understanding rapid phenotypic evolution.
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DOI：
10.1111/j.1095-8312.2005.00438.x
发表时间：
2005-03-01
影响因子：
1.9
作者：
Berry, RJ;Scriven, PN
通讯作者：
Scriven, PN
影响因子：
4.9
作者：
Dlugosch, K. M.;Parker, I. M.
通讯作者：
Parker, I. M.
影响因子：
3
作者：
Cornuet JM;Ravigné V;Estoup A
通讯作者：
Estoup A
影响因子：
7.7
作者：
Excoffier, Laurent;Lischer, Heidi E. L.
通讯作者：
Lischer, Heidi E. L.
DOI：
10.1073/pnas.102583399
发表时间：
2002-06-11
影响因子：
11.1
作者：
Clegg, SM;Degnan, SM;Owens, IPF
通讯作者：
Owens, IPF