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Targeted sequencing of mitochondrial genes reveals signatures of molecular adaptation in a nearly panmictic small pelagic fish species

2021Journal article Open access
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dc.contributor.authorBaltazar-Soares, Miguel
dc.contributor.authorLima, André R.A.
dc.contributor.authorSilva, Gonçalo
dc.date.accessioned2021-02-19T23:53:43Z
dc.date.available2021-02-19T23:53:43Z
dc.date.issued2021
dc.description.abstractOngoing climatic changes, with predictable impacts on marine environmental conditions, are expected to trigger organismal responses. Recent evidence shows that, in some marine species, variation in mitochondrial genes involved in the aerobic conversion of oxygen into ATP at the cellular level correlate with gradients of sea surface temperature and gradients of dissolved oxygen. Here, we investigated the adaptive potential of the European sardine Sardina pilchardus populations offshore the Iberian Peninsula. We performed a seascape genetics approach that consisted of the high throughput sequencing of mitochondria's ATP6, COI, CYTB and ND5 and five microsatellite loci on 96 individuals coupled with environmental information on sea surface temperature and dissolved oxygen across five sampling locations. Results show that, despite sardines forming a nearly panmictic population around Iberian Peninsula, haplotype frequency distribution can be explained by gradients of minimum sea surface temperature and dissolved oxygen. We further identified that the frequencies of the most common CYTB and ATP6 haplotypes negatively correlate with minimum sea surface temperature across the sampled area, suggestive of a signature of selection. With signatures of selection superimposed on highly connected populations, sardines may be able to follow environmental optima and shift their distribution northwards as a response to the increasing sea surface temperatures.pt_PT
dc.description.sponsorshipFundação para a Ciência e Tecnologia - FCTpt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationGenes, 12, 1-17 doi: 10.3390/genes12010091pt_PT
dc.identifier.doi10.3390/genes12010091pt_PT
dc.identifier.issn20734425
dc.identifier.urihttp://hdl.handle.net/10400.12/7982
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPI Multidisciplinary Digital Publishing Institutept_PT
dc.relationMarine and Environmental Sciences Centre
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectSmall pelagic fishespt_PT
dc.subjectOXPHOS complexpt_PT
dc.subjectAdaptive potentialpt_PT
dc.subjectClimate changept_PT
dc.titleTargeted sequencing of mitochondrial genes reveals signatures of molecular adaptation in a nearly panmictic small pelagic fish speciespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleMarine and Environmental Sciences Centre
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04292%2F2020/PT
oaire.citation.conferencePlaceSuitzerlandpt_PT
oaire.citation.endPage17pt_PT
oaire.citation.issue1pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleGenespt_PT
oaire.citation.volume12pt_PT
oaire.fundingStream6817 - DCRRNI ID
person.familyNameBaltazar-Soares
person.familyNameAraújo Lima
person.familyNameFranco Silva
person.givenNameMiguel
person.givenNameAndré Ricardo
person.givenNameGonçalo Jorge
person.identifier283148
person.identifier.ciencia-idDD16-FC8C-D1D0
person.identifier.ciencia-idDA15-EB7F-6483
person.identifier.orcid0000-0002-5919-6197
person.identifier.orcid0000-0002-9698-8302
person.identifier.orcid0000-0001-6700-6720
person.identifier.ridC-4931-2019
person.identifier.scopus-author-id55972343000
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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relation.isAuthorOfPublication320235b1-4a95-4412-bdd5-c2f544e192c4
relation.isAuthorOfPublication4ece45ee-eb82-46a5-8b18-01ab5fbb2c66
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