Continent-wide genomic signatures of adaptation to urbanisation in a songbird across Europe

Pablo Salmón (), Arne Jacobs, Dag Ahrén, Clotilde Biard, Niels J. Dingemanse, Davide M. Dominoni, Barbara Helm, Max Lundberg, Juan Carlos Senar, Philipp Sprau, Marcel E. Visser and Caroline Isaksson ()
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Pablo Salmón: Lund University
Arne Jacobs: University of Glasgow
Dag Ahrén: Lund University
Clotilde Biard: Sorbonne Université, UPEC, Paris 7, CNRS, INRA, IRD, Institut d’Écologie et des Sciences de l’Environnement de Paris, iEES Paris
Niels J. Dingemanse: Ludwig Maximilians University Munich
Davide M. Dominoni: University of Glasgow
Barbara Helm: University of Glasgow
Max Lundberg: Lund University
Juan Carlos Senar: Museu de Ciències Naturals de Barcelona
Philipp Sprau: Ludwig Maximilians University Munich
Marcel E. Visser: Netherlands Institute of Ecology (NIOO-KNAW)
Caroline Isaksson: Lund University

Nature Communications, 2021, vol. 12, issue 1, 1-14

Abstract: Abstract Urbanisation is increasing worldwide, and there is now ample evidence of phenotypic changes in wild organisms in response to this novel environment. Yet, the genetic changes and genomic architecture underlying these adaptations are poorly understood. Here, we genotype 192 great tits (Parus major) from nine European cities, each paired with an adjacent rural site, to address this major knowledge gap in our understanding of wildlife urban adaptation. We find that a combination of polygenic allele frequency shifts and recurrent selective sweeps are associated with the adaptation of great tits to urban environments. While haplotypes under selection are rarely shared across urban populations, selective sweeps occur within the same genes, mostly linked to neural function and development. Collectively, we show that urban adaptation in a widespread songbird occurs through unique and shared selective sweeps in a core-set of behaviour-linked genes.

Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-23027-w

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DOI: 10.1038/s41467-021-23027-w

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