COLLABORATIVE RESEARCH: Genomic outcomes of repeated hybrid speciation

通过杂交产生的物种为研究生物多样性的起源提供了一个独特的机会，因为杂交物种的基因组包含了过去进化过程的证据。这个项目将研究一种经过充分研究的蝴蝶的四个不同进化谱系中的杂交物种形成过程。血统基因组的比较将被用来确定基因组中处于自然选择之下的部分，并评估物种形成基础上的选择过程是同质的、可重复的或不同的程度。基因组数据将与详细的生态信息联系起来，以增加对结果的生物学解释。该项目将导致迄今为止对杂交基因组结果的最全面检查。将开发广泛适用于基因组水平DNA序列分析的统计方法，并在免费提供的软件中实施。该项目将为本科生、研究生和博士后学者提供培训，为K-12学生和教育工作者提供推广计划，为感兴趣的社区团体提供自然历史培训，并为有关进化和遗传学的公共教育做出贡献。

Species that arose through hybridization provide a unique opportunity to examine the origins of biotic diversity, because the genomes of hybrid species contain evidence of past evolutionary processes. This project will examine the process of hybrid speciation in four distinct evolutionary lineages of a well-studied butterfly. Comparison of the genomes of the lineages will be used to identify portions of the genome that are under natural selection and assess the extent to which the selective processes underlying speciation are homogeneous and repeatable or varied. The genomic data will be linked with detailed ecological information to increase the biological interpretation of the results.This project will result in the most comprehensive examination to date of the genomic outcomes of hybridization. Broadly applicable statistical methods for genome-level DNA sequence analysis will be developed and implemented in freely available software. The project will provide training for undergraduate, graduate, and postdoctoral scholars, outreach programs for K-12 students and educators, training in natural history for interested community groups, and contributions to public education about evolution and genetics.