Jelmer W. Poelstra

TL;DR: Characterization of genomic differentiation in a classic example of hybridization between all-black carrion crows and gray-coated hooded crows identified genome-wide introgression extending far beyond the morphological hybrid zone, indicating localized genomic selection can cause marked heterogeneity in introgressive landscapes while maintaining phenotypic divergence.

TL;DR: A comprehensive simulation approach is used to explore how various features of the transcriptome impact transcriptome quality and inference of differential gene expression and finds that transcriptome assembly and gene expression profiling works well even in the absence of a reference genome and is robust across a broad range of parameters.

TL;DR: Insight is provided into how various forms of selection shape genome-wide patterns of genomic differentiation as populations diverge, including context-dependent selection on a multigenic trait architecture and parallelism by pathway rather than by repeated single-gene effects.

TL;DR: It is proposed that a unified theory of speciation will take into account the idiosyncratic features of genomic architecture examined in the light of each organism’s biology and ecology drawn from across the full breadth of the Tree of Life.

TL;DR: The clear behavioral impact of subspecies‐specific song differences supports a potential role for song as an acoustic barrier to gene flow, and suggests that song divergence could affect the direction of gene flow and the position of the sub species‐specific transition.