University of Oulu

Zueva, KJ, Lumme, J, Veselov, AE, Primmer, CR, Pritchard, VL. Population genomics reveals repeated signals of adaptive divergence in the Atlantic salmon of north-eastern Europe. J Evol Biol. 2021; 34: 866– 878. https://doi.org/10.1111/jeb.13732

Population genomics reveals repeated signals of adaptive divergence in the Atlantic salmon of north‐eastern Europe

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Author: Zueva, Ksenia J.1; Lumme, Jaakko2; Veselov, Alexey E.3;
Organizations: 1Department of Biology, University of Turku, Turku, Finland
2Department of Biology, University of Oulu, Oulu, Finland
3Institute of Biology, Karelian Research Centre, Petrozavodsk, Russia
4Organismal and Evolutionary Biology Research Programme, University of Helsinki, Helsinki, Finland
5Institute of Biotechnology, University of Helsinki, Helsinki, Finland
Format: article
Version: accepted version
Access: embargoed
Persistent link: http://urn.fi/urn:nbn:fi-fe20201217101108
Language: English
Published: John Wiley & Sons, 2021
Publish Date: 2021-11-04
Description:

Abstract

Our ability to examine genetic variation across entire genomes has enabled many studies searching for the genetic basis of local adaptation. These studies have identified numerous loci as candidates for differential local selection; however, relatively few have examined the overlap among candidate loci identified from independent studies of the same species in different geographic areas or evolutionary lineages. We used an allelotyping approach with a 220K SNP array to characterize the population genetic structure of Atlantic salmon in north‐eastern Europe and ask whether the same genomic segments emerged as outliers among populations in different geographic regions. Genome‐wide data recapitulated the phylogeographic structure previously inferred from mtDNA and microsatellite markers. Independent analyses of three genetically and geographically distinct groups of populations repeatedly inferred the same 17 haploblocks to contain loci under differential local selection. The most strongly supported of these replicated haploblocks had known strong associations with life‐history variation or immune response in Atlantic salmon. Our results are consistent with these genomic segments harbouring large‐effect loci which have a major role in Atlantic salmon diversification and are ideal targets for validation studies.

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Series: Journal of evolutionary biology
ISSN: 1010-061X
ISSN-E: 1420-9101
ISSN-L: 1010-061X
Volume: 34
Issue: 6
DOI: 10.1111/jeb.13732
OADOI: https://oadoi.org/10.1111/jeb.13732
Type of Publication: A1 Journal article – refereed
Field of Science: 1181 Ecology, evolutionary biology
Subjects:
Funding: This research has been funded by the Academy of Finland (grants 284941, 314254 and 327255).
Copyright information: © 2020 European Society For Evolutionary Biology. Journal of Evolutionary Biology © 2020 European Society For Evolutionary Biology. This is the peer reviewed version of the following article: Zueva, KJ, Lumme, J, Veselov, AE, Primmer, CR, Pritchard, VL. Population genomics reveals repeated signals of adaptive divergence in the Atlantic salmon of north-eastern Europe. J Evol Biol. 2021; 34: 866– 878, which has been published in final form at https://doi.org/10.1111/jeb.13732. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.