Detection of adaptive divergence between the Japan Sea and Pacific Ocean lineages for a fish: ecological genomic analysis

以淡水鱼Leucopsarion petersii为模式系统进行了种群基因组分析，以检测海洋环境中单一物种内种群之间的适应性差异。利用多个微卫星和候选基因标记进行基因组扫描发现，该物种在日本海谱系中存在正选择的基因组特征。因此，强烈地表明该物种的日本海和太平洋谱系之间已经发生了适应性分化。

Population genomic analyses were conducted using the anadromous fish Leucopsarion petersii as a model system to detect adaptive divergence among populations within a single species in marine environments. Genome scan using many microsatellites and candidate gene markers revealed that there were genomic signatures of positive selection in the Japan Sea lineage of this species. Thus, it is strongly suggested that adaptive divergence have occurred between the Japan Sea and Pacific Ocean lineages of this species.