Rapid evolution of reproductive isolation in the wild: Evidence from introduced salmon
Rapid evolution of reproductive isolation in the wild: Evidence from introduced salmon
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DOI：
10.1126/science.290.5491.516
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发表时间：
2000-10-20
期刊：
影响因子：
56.9
通讯作者：
Quinn, TP
中科院分区：
文献类型：
--
作者：
Hendry, AP;Wenburg, JK;Quinn, TP
新环境的殖民化应该会促进快速的物种形成，这是适应不同选择机制的副产品。虽然这种生态物种形成的过程已经发生了数千年或数百年，但对于新环境首次殖民时生殖隔离的实际演变速度却一无所知。使用DNA微卫星，人口特异性的自然标签，和表型变异，我们测试了两个相邻的鲑鱼种群的共同祖先，殖民不同的生殖环境（河流和湖泊海滩）之间的生殖隔离。我们发现了不到13代后生殖隔离进化的证据。
Colonization of new environments should promote rapid speciation as a byproduct of adaptation to divergent selective regimes. Although this process of ecological speciation is known to have occurred over millennia or centuries, nothing is known about how quickly reproductive isolation actually evolves when new environments are first colonized. Using DNA microsatellites, population-specific natural tags, and phenotypic variation, we tested for reproductive isolation between two adjacent salmon populations of a common ancestry that colonized divergent reproductive environments (a river and a lake beach). We found evidence for the evolution of reproductive isolation after fewer than 13 generations.