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dc.contributor.authorBringloe, Trevor T.
dc.contributor.authorBourret, Audrey
dc.contributor.authorCote, David
dc.contributor.authorMarie-Julie, Roux
dc.contributor.authorHerbig, Jennifer
dc.contributor.authorRobert, Dominique
dc.contributor.authorGeoffroy, Maxime
dc.contributor.authorParent, Geneviève J.
dc.date.accessioned2024-10-04T08:06:25Z
dc.date.available2024-10-04T08:06:25Z
dc.date.issued2024-08-20
dc.description.abstractThe polar cod, Boreogadus saida, is an abundant and ubiquitous forage fish and a crucial link in Arctic marine trophic dynamics. Our objective was to unravel layers of genomic structure in B. saida from Canadian waters, specifically screening for potential hybridization with the Arctic cod, Arctogadus glacialis, large chromosomal inversions, and sex-linked regions, prior to interpreting population structure. Our analysis of 53,384 SNPs in 522 individuals revealed hybridization and introgression between A. glacialis and B. saida. Subsequent population level analyses of B. saida using 12,305 SNPs in 511 individuals revealed three large (ca. 7.4–16.1 Mbp) chromosomal inversions, and a 2 Mbp region featuring sex-linked loci. We showcase population structuring across the Western and Eastern North American Arctic, and subarctic regions ranging from the Hudson Bay to the Canadian Atlantic maritime provinces. Genomic signal for the inferred population structure was highly aggregated into a handful of SNPs (13.8%), pointing to potentially important adaptive evolution across the Canadian range. Our study provides a high-resolution perspective on the genomic structure of B. saida, providing a foundation for work that could be expanded to the entire circumpolar range for the species.en_US
dc.identifier.citationBringloe, Bourret, Cote, Marie-Julie, Herbig, Robert, Geoffroy, Parent. Genomic architecture and population structure of Boreogadus saida from Canadian waters. Scientific Reports. 2024;14(1)en_US
dc.identifier.cristinIDFRIDAID 2291797
dc.identifier.doi10.1038/s41598-024-69782-w
dc.identifier.issn2045-2322
dc.identifier.urihttps://hdl.handle.net/10037/35041
dc.language.isoengen_US
dc.publisherSpringer Natureen_US
dc.relation.journalScientific Reports
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2024 The Author(s)en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0en_US
dc.rightsAttribution 4.0 International (CC BY 4.0)en_US
dc.titleGenomic architecture and population structure of Boreogadus saida from Canadian watersen_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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Attribution 4.0 International (CC BY 4.0)
Except where otherwise noted, this item's license is described as Attribution 4.0 International (CC BY 4.0)