Patrik Nosil

TL;DR: It is concluded that divergent selection makes diverse contributions to heterogeneous genomic divergence, and the number, size, and distribution of genomic regions affected by selection varied substantially among studies, leading us to discuss the potential role of Divergent selection in the growth of regions of differentiation (i.e. genomic islands of divergence), a topic in need of future investigation.

TL;DR: A theory predicting four phases of speciation, defined by changes in the relative effectiveness of divergence and genome hitchhiking, is described and future directions are outlined, emphasizing the need to couple next-generation sequencing with selection, transplant, functional genomics, and mapping studies.

TL;DR: Recent evidence is reviewed indicating that variability in the completeness of speciation can also be associated with the nature of divergent selection itself, with speciation being greatly promoted by (i) stronger selection on a given, single trait (the 'stronger selection' hypothesis) and (ii) Selection on a greater number of traits ( the 'multifarious selection' hypotheses).

TL;DR: In this article, the authors quantify the contributions of immigrant inviability to total reproductive isolation by examining study systems where multiple components of reproductive isolation have been measured and demonstrate that these contributions are frequently greater than those of traditionally recognized reproductive barriers.