Does Asymmetric Reproductive Isolation Predict the Direction of Introgression in Plants?

ABSTRACT: The evolution of reproductive isolation (RI) results in the reduction of interspecific hybridization and the maintenance of species boundaries. Asymmetries in RI, where one species more frequently serves as the maternal or paternal parent in initial F₁ hybrid formation, are commonly observed in plants. Asymmetric introgression, the predominantly unidirectional transfer of genetic material through hybridization and backcrossing, has also been frequently documented in hybridizing plant taxa as well. This study investigates whether asymmetries in total RI measured between species can predict the direction of introgression in naturally hybridizing plant taxa. A meta-analysis was conducted on 19 plant species pairs with published data on both asymmetric total RI, and asymmetric intro

SUBMITTER: Martin NH 

PROVIDER: S-EPMC11855407 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature