Limited Introgression between Rock-Wallabies with Extensive Chromosomal Rearrangements.

ABSTRACT: Chromosome rearrangements can result in the rapid evolution of hybrid incompatibilities. Robertsonian fusions, particularly those with monobrachial homology, can drive reproductive isolation amongst recently diverged taxa. The recent radiation of rock-wallabies (genus Petrogale) is an important model to explore the role of Robertsonian fusions in speciation. Here, we pursue that goal using an extensive sampling of populations and genomes of Petrogale from north-eastern Australia. In contrast to previous assessments using mitochondrial DNA or nuclear microsatellite loci, genomic data are able to separate the most closely related species and to resolve their divergence histories. Both phylogenetic and population genetic analyses indicate introgression between two species that differ by a sin

SUBMITTER: Potter S 

PROVIDER: S-EPMC8788226 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature