Gene flow, ancient polymorphism, and ecological adaptation shape the genomic landscape of divergence among Darwin's finches.
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Han F, Lamichhaney S, Grant BR, Grant PR, Andersson L, Webster MT
Genome Res. 27 (6) 1004-1015 [2017-06-00; online 2017-04-25]
Genomic comparisons of closely related species have identified "islands" of locally elevated sequence divergence. Genomic islands may contain functional variants involved in local adaptation or reproductive isolation and may therefore play an important role in the speciation process. However, genomic islands can also arise through evolutionary processes unrelated to speciation, and examination of their properties can illuminate how new species evolve. Here, we performed scans for regions of high relative divergence (
PubMed 28442558
DOI 10.1101/gr.212522.116
Crossref 10.1101/gr.212522.116
pii: gr.212522.116
pmc: PMC5453315
Dryad: 10.5061/dryad.7155d