Hybridization and Transgressive Evolution Generate Diversity in an Adaptive Radiation of Anolis Lizards.

ABSTRACT: Interspecific hybridization may act as a major force contributing to the evolution of biodiversity. Although generally thought to reduce or constrain divergence between 2 species, hybridization can, paradoxically, promote divergence by increasing genetic variation or providing novel combinations of alleles that selection can act upon to move lineages toward new adaptive peaks. Hybridization may, then, play a key role in adaptive radiation by allowing lineages to diversify into new ecological space. Here, we test for signatures of historical hybridization in the Anolis lizards of Puerto Rico and evaluate 2 hypotheses for the role of hybridization in facilitating adaptive radiation-the hybrid swarm origins hypothesis and the syngameon hypothesis. Using whole genome sequences from all 10 spec

SUBMITTER: Wogan GOU 

PROVIDER: S-EPMC10687355 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature