Prezygotic barriers effectively limit hybridization in a rapid evolutionary radiation.

ABSTRACT: Hybridization is increasingly recognized as an important evolutionary process across the tree of life. In many clades, phylogenomic approaches have permitted unparalleled insight into the extent and frequency of hybridization. However, we continue to lack a deep understanding of the factors that limit and shape patterns of hybridization, especially in evolutionary radiations. In this study, we characterized patterns of introgression across Costus (Costaceae), a young evolutionary radiation of tropical understory plants that maintain widespread interfertility despite exhibiting strong prezygotic reproductive isolation. We analyzed a phylogenomic dataset of 756 genes from 54 Costus species using multiple complementary approaches - D-statistics, gene-tree-based tests, and phylogenetic network

SUBMITTER: Uckele KA 

PROVIDER: S-EPMC11579434 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature