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Genomic regions of speciation and adaptation among three species of grouse
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Animal ecology.
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Animal ecology.
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Genetics, Animal ecology.
2019 (English)In: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 9, article id 812Article in journal (Refereed) Published
Abstract [en]

Understanding the molecular basis of adaption is one of the central goals in evolutionary biology and when investigated across sister species it can provide detailed insight into the mechanisms of speciation. Here, we sequence the genomes of 34 individuals from three closely related grouse species in order to uncover the genomic architecture of speciation and the genes involved in adaptation. We identify 6 regions, containing 7 genes that show lineage specific signs of differential selection across the species. These genes are involved in a variety of cell processes ranging from stress response to neural, gut, olfactory and limb development. Genome wide neutrality test statistics reveal a strong signal of population expansion acting across the genomes. Additionally, we uncover a 3.5 Mb region on chromosome 20 that shows considerably lower levels of differentiation across the three grouse lineages, indicating possible action of uniform selection in this region.

Place, publisher, year, edition, pages
2019. Vol. 9, article id 812
National Category
Genetics Evolutionary Biology
Identifiers
URN: urn:nbn:se:uu:diva-377350DOI: 10.1038/s41598-018-36880-5ISI: 000456826200041PubMedID: 30692562OAI: oai:DiVA.org:uu-377350DiVA, id: diva2:1291113
Funder
Swedish Research CouncilAvailable from: 2019-02-22 Created: 2019-02-22 Last updated: 2019-02-22Bibliographically approved

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