Ancient and Recent Hybridization in the Oreochromis Cichlid Fishes.

ABSTRACT: Cichlid fishes of the genus Oreochromis (tilapia) are among the most important fish for inland capture fisheries and global aquaculture. Deliberate introductions of non-native species for fisheries improvement and accidental escapees from farms have resulted in admixture with indigenous species. Such hybridization may be detrimental to native biodiversity, potentially leading to genomic homogenization of populations and the loss of important genetic material associated with local adaptation. By contrast, introgression may fuel diversification when combined with ecological opportunity, by supplying novel genetic combinations. To date, the role of introgression in the evolutionary history of tilapia has not been explored. Here we studied both ancient and recent hybridization in tilapia, usin

SUBMITTER: Ciezarek AG 

PROVIDER: S-EPMC11221657 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature