Complex Evolutionary History With Extensive Ancestral Gene Flow in an African Primate Radiation.

ABSTRACT: Understanding the drivers of speciation is fundamental in evolutionary biology, and recent studies highlight hybridization as an important evolutionary force. Using whole-genome sequencing data from 22 species of guenons (tribe Cercopithecini), one of the world's largest primate radiations, we show that rampant gene flow characterizes their evolutionary history and identify ancient hybridization across deeply divergent lineages that differ in ecology, morphology, and karyotypes. Some hybridization events resulted in mitochondrial introgression between distant lineages, likely facilitated by cointrogression of coadapted nuclear variants. Although the genomic landscapes of introgression were largely lineage specific, we found that genes with immune functions were overrepresented in introgres

SUBMITTER: Jensen A 

PROVIDER: S-EPMC10691879 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature