Rules of Life - How repeatable is speciation?

物种形成涉及基因交换障碍的建立。尽管物种形成的基因组案例研究的财富和快速发展的方法，允许推断物种形成的历史，从序列变异，它仍然不清楚如何重复（或特异质）的物种形成，也就是说，在何种程度上相同的基因，基因家族和基因组区域参与建立生殖隔离。这个项目将研究如何重复的物种形成过程进行系统的比较，最近分歧的物种对欧洲蝴蝶作为一个测试案例。学生将使用一种新的统计框架来分析欧洲蝴蝶的18个姐妹对物种的种群基因组数据，该框架用于将序列变异模式分解为Lohse实验室开发的过去种群过程（例如基因流和背景选择）的基因组图谱。

Speciation involves the build up of barriers to genetic exchange. Despite this wealth of speciation genomic case studies and the rapid development of methods that allow to infer speciation history from sequence variation, it remains unclear how repeatable (or idiosyncratic) speciation is, that is, to what extent the same genes, genes families and genomic regions are involved in the build up reproductive isolation. This project will examine how repeatable speciation processes are by conducting systematic comparisons between recently diverged species pairs of European butterflies as a test case. The student will analyse population genomic data 18 sister pair species of European butterfly using a novel statistical framework for decomposing patterns of sequence variation into genomic maps of past population processes (e.g. gene flow and background selection) developed in the Lohse Lab.