Divergence, gene flow, and speciation in eight lineages of trans-Beringian birds ...

• Main Authors: Winker, Kevin, McLaughlin, Jessica, Glenn, Travis, Faircloth, Brant
• Format: Dataset
• Language: English
• Published: Dryad 2020
• Subjects: ultraconserved elements UCE; Reference sequences; single nucleotide polymorphism SNPs; Clangula hymalis; Luscinia svecica; Anas crecca; Pinicola enucleator; Mareca penelope; Mareca americana; Pica pica; Pica hudsonia; Numenius phaeopus; Tringa brevipes; Tringa incana; Beringia
• Online Access: https://dx.doi.org/10.5061/dryad.zpc866t6n; https://datadryad.org/stash/dataset/doi:10.5061/dryad.zpc866t6n

Determining how genetic diversity is structured between populations that span the divergence continuum from populations to biological species is key to understanding the generation and maintenance of biodiversity. We investigated genetic divergence and gene flow in eight lineages of birds with a trans-Beringian distribution, where Asian and North American populations have likely been split and reunited through multiple Pleistocene glacial cycles. Our study transects the speciation process, including eight pairwise comparisons in three orders (ducks, shorebirds, and passerines) at population, subspecies, and species levels. Using ultraconserved elements (UCEs), we found that these lineages represent conditions from slightly differentiated populations to full biological species. Although allopatric speciation is considered the predominant mode of divergence in birds, all of our best divergence models included gene flow, supporting speciation with gene flow as the predominant mode in Beringia. In our eight ... : Details on data production and bioinformatics pipeline are givien in the cited paper. ...