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Inversions dominate evolution in the european sardine (sardina pilchardus) amid strong gene flow

2025-07-25Artigo científico Acesso restrito
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datacite.subject.sdg14:Proteger a Vida Marinha
datacite.subject.sdg15:Proteger a Vida Terrestre
datacite.subject.sdg09:Indústria, Inovação e Infraestruturas
dc.contributor.authorSabatino, Stephen J.
dc.contributor.authorCabezas, M. Pilar
dc.contributor.authorPereira, Paulo
dc.contributor.authorGarrido, Susana
dc.contributor.authorSantos, António M.
dc.contributor.authorCarneiro, Miguel
dc.contributor.authorSantos, Paulo T.
dc.contributor.authorLouro, Bruno
dc.contributor.authorCox, Cymon
dc.contributor.authorCanario, Adelino
dc.contributor.authorVeríssimo, Ana
dc.date.accessioned2026-03-31T11:45:49Z
dc.date.available2026-03-31T11:45:49Z
dc.date.issued2025-07-25
dc.description.abstractInversions can play key roles in the genetic architecture of adaptation, but the scale of their effects across different species remains poorly understood. Here, we use whole-genome sequencing and demographic modelling to investigate the influence of inversions on the population genomics of the r-selected European sardine (Sardina pilchardus). Allele frequency differences from millions of SNPs across 34 populations spanning the species' range were analysed. Genomic scans identified several extreme outlier regions overlapping large inversions (29–52Mbp), collectively representing over half the genome. Our findings suggest these inversions correlate with locally adapted life-history strategies. First, SNPs within outlier regions containing inversions exhibited striking allele frequency differences between Atlantic and Mediterranean sardines, which differ in key adaptive life-history traits. In the Atlantic, inversion allele frequencies varied latitudinally, while in the Mediterranean, they shifted longitudinally, aligning with temperature and oceanographic features that influence sardine life-history strategies. Moreover, adjacent populations in contrasting environments exhibited pronounced differences in inversion allele frequencies, accompanied by a marked reduction in migration between them. In contrast, spatial patterns at neutral loci showed widespread gene flow, isolation by distance within basins, and population structure between Atlantic and Mediterranean basins (except for the Canary Islands). These results suggest that the inversions studied are under selection and demonstrate the capacity of large inversions to shape genomewide patterns of genetic diversity and population structure in species characterized by widespread gene flow. Our work also offers crucial insights for stock delimitation and management of this commercially valuable species in the face of climate change.eng
dc.description.sponsorshipUIDB/04326/2021; UIDP/04326/2022; CEECINST/00014/2018/CP1512/CT0002; CEECIND/CP1730/CT0011
dc.identifier.doi10.1111/mec.70027
dc.identifier.eissn1365-294X
dc.identifier.issn0962-1083
dc.identifier.urihttp://hdl.handle.net/10400.1/28583
dc.language.isoeng
dc.peerreviewedyes
dc.publisherWiley
dc.relationCentre for Marine and Environmental Research
dc.relation.ispartofMolecular Ecology
dc.rights.uriN/A
dc.subjectAdaptation
dc.subjectClimate change
dc.subjectLife-history evolution
dc.subjectPopulation genetics—empirical
dc.subjectWildlife management
dc.titleInversions dominate evolution in the european sardine (sardina pilchardus) amid strong gene floweng
dc.typejournal article
dspace.entity.typePublication
oaire.awardNumberLA/P/0101/2020
oaire.awardTitleCentre for Marine and Environmental Research
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0101%2F2020/PT
oaire.citation.issue16
oaire.citation.startPage70027
oaire.citation.titleMolecular Ecology
oaire.citation.volume34
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameLouro
person.familyNameCox
person.familyNameCanario
person.givenNameBruno
person.givenNameCymon
person.givenNameAdelino
person.identifier143624
person.identifier.ciencia-id6B15-9771-1D04
person.identifier.ciencia-id1F1E-D3B3-F804
person.identifier.orcid0000-0001-8164-581X
person.identifier.orcid0000-0002-4927-979X
person.identifier.orcid0000-0002-6244-6468
person.identifier.ridD-1303-2012
person.identifier.ridC-7942-2009
person.identifier.scopus-author-id16028940200
person.identifier.scopus-author-id7402112716
person.identifier.scopus-author-id56568523700
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
relation.isAuthorOfPublication3b22b64f-ba2d-4c42-8bf9-34b569eb7b6c
relation.isAuthorOfPublication82c3689c-60b6-440d-9d7b-49e6dbd6861b
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relation.isAuthorOfPublication.latestForDiscovery3b22b64f-ba2d-4c42-8bf9-34b569eb7b6c
relation.isProjectOfPublication794d4c77-c731-471e-bc96-5a41dcd3d872
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