Comparative Phylogenomic Assessment of Mitochondrial Introgression among Several Species of Chipmunks (Tamias).

ABSTRACT: Many species are not completely reproductively isolated, resulting in hybridization and genetic introgression. Organellar genomes, such as those derived from mitochondria (mtDNA) and chloroplasts, introgress frequently in natural systems; however, the forces shaping patterns of introgression are not always clear. Here, we investigate extensive mtDNA introgression in western chipmunks, focusing on species in the Tamias quadrivittatus group from the central and southern Rocky Mountains. Specifically, we investigate the role of selection in driving patterns of introgression. We sequenced 51 mtDNA genomes from six species and combine these sequences with other published genomic data to yield annotated mitochondrial reference genomes for nine species of chipmunks. Genomic characterization was p

SUBMITTER: Sarver BA 

PROVIDER: S-EPMC5381575 | biostudies-literature | 2017 Jan

REPOSITORIES: biostudies-literature