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Past and future climate effects on population structure and diversity of North Pacific surfgrasses

2024-06-02Journal article Open access
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dc.contributor.authorTavares, Ana I
dc.contributor.authorAssis, Jorge
dc.contributor.authorAnderson, Laura
dc.contributor.authorRaimondi, Pete
dc.contributor.authorCoelho, Nelson
dc.contributor.authorPaulino, Cristina
dc.contributor.authorLadah, Lydia
dc.contributor.authorNakaoka, Masahiro
dc.contributor.authorPearson, Gareth Anthony
dc.contributor.authorSerrao, Ester A.
dc.date.accessioned2024-09-19T13:50:40Z
dc.date.available2024-09-19T13:50:40Z
dc.date.issued2024-06-02
dc.description.abstractUnderstanding the impacts of past and future climate change on genetic diversity and structure is a current major research gap. We ask whether past range shifts explain the observed genetic diversity of surfgrass species and if future climate change projections anticipate genetic diversity losses. Our study aims to identify regions of long-term climate suitability with higher and unique seagrass genetic diversity and predict future impacts of climate change on them.LocationNortheast Pacific.Time PeriodAnalyses considered a timeframe from the Last Glacial Maximum (LGM; 20 kybp) until one Representative Concentration Pathway (RCP) scenario of future climate changes (RCP 8.5; 2100).Major Taxa StudiedTwo seagrass species belonging to the genus Phyllospadix.MethodsWe estimated population genetic diversity and structure using 11 polymorphic microsatellite markers. We predicted the distribution of the species for the present, LGM, and near future (RCP 8.5, no climate mitigation) using Species Distribution Models (SDMs).ResultsSDMs revealed southward range shifts during the LGM and potential poleward expansions in the future. Genetic diversity of Phyllospadix torreyi decreases from north to south, but in Phyllospadix scouleri the trend is variable. Phyllospadix scouleri displays signals of genome admixture at the southernmost and northernmost edges of its distribution.Main ConclusionsThe genetic patterns observed in the present reveal the influence of climate-driven range shifts in the past and suggest further consequences of climate change in the future, with potential loss of unique gene pools. This study also shows that investigating climate links to present genetic information at multiple timescales can establish a historical context for analyses of the future evolutionary history of populations.eng
dc.description.sponsorshipPTDC/BIA-CBI/6515/2020; COVID/BD/152937/2022
dc.identifier.doi10.1111/jbi.14964
dc.identifier.eissn1365-2699
dc.identifier.issn0305-0270
dc.identifier.urihttp://hdl.handle.net/10400.1/25912
dc.language.isoeng
dc.peerreviewedyes
dc.publisherWiley
dc.relationAlgarve Centre for Marine Sciences
dc.relationAlgarve Centre for Marine Sciences
dc.relationCentre for Marine and Environmental Research
dc.relationClimate-informed prioritization of marine biodiversity hotspots to support the implementation of the post-2020 biodiversity framework
dc.relationContrasting evolutionary histories from the warm Atlantic to the cold Pacific - overlooked seagrass diversity
dc.relation.ispartofJournal of Biogeography
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectClimate change
dc.subjectGenetic diversity
dc.subjectMarine biogeography
dc.subjectRange shifts
dc.subjectSDMs
dc.subjectSeagrasses
dc.titlePast and future climate effects on population structure and diversity of North Pacific surfgrasseseng
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardTitleCentre for Marine and Environmental Research
oaire.awardTitleClimate-informed prioritization of marine biodiversity hotspots to support the implementation of the post-2020 biodiversity framework
oaire.awardTitleContrasting evolutionary histories from the warm Atlantic to the cold Pacific - overlooked seagrass diversity
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oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F138182%2F2018/PT
oaire.citation.titleJournal of biogeography
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person.familyNameTavares
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person.familyNamePearson
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person.givenNameAna I
person.givenNameJorge
person.givenNameNelson
person.givenNameCristina
person.givenNameGareth Anthony
person.givenNameEster A.
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