Differing Y chromosome versus mitochondrial DNA ancestry, phylogeography, and introgression in the house mouse
2015 (English)In: Biological Journal of the Linnean Society, ISSN 0024-4066, E-ISSN 1095-8312, Vol. 115, no 2, 348-361 p.Article in journal (Refereed) Published
We used Y chromosome microsatellites to infer the phylogeography of the house mouse (Mus musculus; predominantly the domesticus subspecies) across western Europe, and compared this with mitochondrial (mt)DNA phylogeography for the same samples. Overall, the distributions of mtDNA and Y haplotype lineages within M.m. domesticus were discordant, probably as a result of behavioural differences between males and females. In island contexts, there is evidence for a greater number of Y chromosome introductions compared to mtDNA introductions, indicating that island populations are more resistant to incoming females than males. This contrasts with a subspecies hybrid zone, which acts as a nonpermeable barrier to the Y chromosome but is relatively porous to mtDNA. Interestingly, within Norway, where Mus musculusY chromosomes are prevalent in the resident domesticus populations, the musculusY is apparently of a single, recent origin, with a distribution that is likely the result of a positive selection allowing the subspecies barrier to be crossed. Overall, we confirm the utility of Y chromosome microsatellites for inferring global ancestry and phylogeography in the house mouse.
Place, publisher, year, edition, pages
2015. Vol. 115, no 2, 348-361 p.
microsatellite, mitochondrial DNA, Mus musculus domesticus, Mus musculus musculus
IdentifiersURN: urn:nbn:se:uu:diva-252957DOI: 10.1111/bij.12522ISI: 000353508000008OAI: oai:DiVA.org:uu-252957DiVA: diva2:812832