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- Title
Complex hybridization between deeply diverged fish species in a disturbed ecosystem.
- Authors
Banerjee, Shreya M; Powell, Daniel L; Moran, Benjamin M; Ramírez-Duarte, Wilson F; Langdon, Quinn K; Gunn, Theresa R; Vazquez, Gaby; Rochman, Chelsea; Schumer, Molly
- Abstract
Over the past two decades researchers have documented the extent of natural hybridization between closely related species using genomic tools. Many species across the tree of life show evidence of past hybridization with their evolutionary relatives. In some cases, this hybridization is complex—involving gene flow between more than two species. While hybridization is common over evolutionary timescales, some researchers have proposed that it may be even more common in contemporary populations where anthropogenic disturbance has modified a myriad of aspects of the environments in which organisms live and reproduce. Here, we develop a flexible tool for local ancestry inference in hybrids derived from three source populations and describe a complex, recent hybridization event between distantly related swordtail fish lineages (Xiphophorus) and its potential links to anthropogenic disturbance.
- Subjects
PLANT hybridization; SPECIES; GENE flow; FISH populations; ECOSYSTEMS
- Publication
Evolution, 2023, Vol 77, Issue 4, p995
- ISSN
0014-3820
- Publication type
Article
- DOI
10.1093/evolut/qpad019