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Epistatic mutations under divergent selection govern phenotypic variation in the crow hybrid zone
Ludwig Maximilians Univ Munchen, Div Evolutionary Biol, Fac Biol, Munich, Germany.
Uppsala universitet, Science for Life Laboratory, SciLifeLab. Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Biologiska sektionen, Institutionen för ekologi och genetik, Evolutionsbiologi. Stockholm Univ, Dept Zool, Populat Genet, Stockholm, Sweden;Univ Calif Los Angeles, Ctr Trop Res, Inst Environm & Sustainabil, Los Angeles, CA USA.
Univ Milan, Dept Environm Sci & Policy, Milan, Italy.
Lund Univ, Dept Biol, Lund, Sweden.ORCID-id: 0000-0001-6694-8169
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2019 (engelsk)Inngår i: Nature Ecology & Evolution, E-ISSN 2397-334X, Vol. 3, nr 4, s. 570-576Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The evolution of genetic barriers opposing interspecific gene flow is key to the origin of new species. Drawing from information on over 400 admixed genomes sourced from replicate transects across the European hybrid zone between all-black carrion crows and grey-coated hooded crows, we decipher the interplay between phenotypic divergence and selection at the molecular level. Over 68% of plumage variation was explained by epistasis between the gene NDP and a similar to 2.8-megabase region on chromosome 18 with suppressed recombination. Both pigmentation loci showed evidence for divergent selection resisting introgression. This study reveals how few, large-effect loci can govern prezygotic isolation and shield phenotypic divergence from gene flow.

sted, utgiver, år, opplag, sider
2019. Vol. 3, nr 4, s. 570-576
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Identifikatorer
URN: urn:nbn:se:uu:diva-382256DOI: 10.1038/s41559-019-0847-9ISI: 000462542100018PubMedID: 30911146OAI: oai:DiVA.org:uu-382256DiVA, id: diva2:1306426
Forskningsfinansiär
Knut and Alice Wallenberg FoundationEU, European Research Council, ERCStG-336536 FuncSpecGenTilgjengelig fra: 2019-04-23 Laget: 2019-04-23 Sist oppdatert: 2019-04-23bibliografisk kontrollert

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