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Trans-Arctic asymmetries, melting pots and weak species cohesion in the low-dispersal amphiboreal seaweed Fucus distichus

2024-04Journal article Open Access
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dc.contributor.authorNeiva, J.
dc.contributor.authorAssis, Jorge
dc.contributor.authorFragkopoulou, Eliza
dc.contributor.authorPearson, Gareth
dc.contributor.authorRaimondi, Peter T.
dc.contributor.authorAnderson, Laura
dc.contributor.authorKrause-Jensen, Dorte
dc.contributor.authorMarbà, Núria
dc.contributor.authorWant, Andrew
dc.contributor.authorSelivanova, Olga
dc.contributor.authorNakaoka, Masahiro
dc.contributor.authorGrant, W. Stewart
dc.contributor.authorKonar, Brenda
dc.contributor.authorRoleda, Michael Y.
dc.contributor.authorSejr, Mikael K.
dc.contributor.authorPaulino, Cristina
dc.contributor.authorSerrao, Ester
dc.date.accessioned2024-05-24T12:43:13Z
dc.date.available2024-05-24T12:43:13Z
dc.date.issued2024-04
dc.description.abstractAmphiboreal taxa are often composed of vicariant phylogroups and species complexes whose divergence and phylogeographic affinities reflect a shared history of chronic isolation and episodic trans-Arctic dispersal. Ecological filters and shifting selective pressures may also promote selective sweeps, niche shifts and ecological speciation during colonization, but these are seldom considered at biogeographical scales. Here we integrate genetic data and Ecologic Niche Models (ENMs) to investigate the historical biogeography and cohesion of the polymorphic rockweed Fucus distichus throughout its immense amphiboreal range, focusing on trans-Arctic asymmetries, glacial/interglacial dynamics, and integrity of sympatric eco-morphotypes. Populations were sampled throughout the Pacific and the Atlantic, from southern rear-edges to the high-Arctic. They were genotyped for seven microsatellites and an mtDNA spacer, and genetic diversity and structure were assessed from global to local scales. ENMs were used to compare niche divergence and magnitude of post-glacial range shifts in Pacific versus Atlantic sub-ranges. Haplotypic and genotypic data revealed distinct and seemingly isolated Pacific vs Arctic/Atlantic gene-pools, with finer-scale regional sub-structuring pervasive in the Pacific. MtDNA diversity was highly structured and overwhelmingly concentrated in the Pacific. Regionally, Alaska showed the highest intra-population diversity but the lowest levels of endemism. Some sympatric/parapatric ecotypes exhibited distinct genotypic/haplotypic compositions. Strikingly, niche models revealed higher Pacific tolerance to maximum temperatures and predicted a much more consolidated presence in the NE Atlantic. Glacial and modern ranges overlapped extensively in the Pacific, whereas the modern Atlantic range was largely glaciated or emerged during the Last Glacial Maximum. Higher genetic and ecogeographic diversity supports a primary Pacific diversification and secondary Atlantic colonization, also likely reflecting the much larger and more stable climatic refugia in the Pacific. The relic distribution and reduced ecological/morphological plasticity in the NE Atlantic are hypothesized to reflect functional trans-Arctic bottlenecks, recent colonization or competition with congeners. Within the Pacific, Alaska showed signatures of a post-glacial melting pot of eastern and southern populations. Genetic/ecotypic variation was generally not sufficiently discontinuous or consistent to justify recognizing multiple taxonomic entities, but support a separate species in the eastern Pacific, at the southern rear-edge. We predict that layered patterns of phylogeographic structure, incipient speciation and niche differences might be common among widespread low-dispersal amphiboreal taxa.pt_PT
dc.description.sponsorshipIndividual Call to Scientific Employment Stimulus EU-BiodivERsA BiodivRestore-253pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.3389/fevo.2024.1356987pt_PT
dc.identifier.issn2296-701X
dc.identifier.urihttp://hdl.handle.net/10400.1/20779
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherFrontiers Mediapt_PT
dc.relationAlgarve Centre for Marine Sciences
dc.relationAlgarve Centre for Marine Sciences
dc.relationCentre for Marine and Environmental Research
dc.relationNot Available
dc.relationClimate-informed prioritization of marine biodiversity hotspots to support the implementation of the post-2020 biodiversity framework
dc.relationPotential consequences of future climate changes for marine forest gene pools
dc.relationHotspots de biodiversidade genética em florestas marinhas
dc.relationArctic Tipping Points
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectIntertidalpt_PT
dc.subjectClimate-driven range shiftspt_PT
dc.subjectCryptic speciespt_PT
dc.subjectFunctional bottleneckpt_PT
dc.subjectGenetic hotspots and melting potspt_PT
dc.subjectNiche unfillingpt_PT
dc.subjectTrans-Arctic phylogeographypt_PT
dc.titleTrans-Arctic asymmetries, melting pots and weak species cohesion in the low-dispersal amphiboreal seaweed Fucus distichuspt_PT
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.awardTitleNot Available
oaire.awardTitleClimate-informed prioritization of marine biodiversity hotspots to support the implementation of the post-2020 biodiversity framework
oaire.awardTitlePotential consequences of future climate changes for marine forest gene pools
oaire.awardTitleHotspots de biodiversidade genética em florestas marinhas
oaire.awardTitleArctic Tipping Points
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04326%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04326%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0101%2F2020/PT
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oaire.awardURIinfo:eu-repo/grantAgreement/FCT/CEEC IND5ed/2022.00861.CEECIND%2FCP1729%2FCT0003/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/OE/SFRH%2FBD%2F144878%2F2019/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/OE/SFRH%2FBSAB%2F150485%2F2019/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/Concurso Transnacional Conjunto de 2015 da ERA-NET BiodivERsA3/BIODIVERSA%2F0004%2F2015/PT
oaire.awardURIinfo:eu-repo/grantAgreement/EC/FP7/226248/EU
oaire.citation.titleFrontiers in Ecology and Evolutionpt_PT
oaire.citation.volume12pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamDL 57/2016
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oaire.fundingStreamOE
oaire.fundingStreamOE
oaire.fundingStreamConcurso Transnacional Conjunto de 2015 da ERA-NET BiodivERsA3
oaire.fundingStreamFP7
person.familyNameMiranda Neiva
person.familyNameAssis
person.familyNameFragkopoulou
person.familyNamePearson
person.familyNamePaulino
person.familyNameSerrao
person.givenNameJoão
person.givenNameJorge
person.givenNameEliza
person.givenNameGareth Anthony
person.givenNameCristina
person.givenNameEster A.
person.identifierM-3818-2013
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person.identifier.orcid0000-0002-5927-4570
person.identifier.orcid0000-0002-6624-4820
person.identifier.orcid0000-0002-0557-3954
person.identifier.orcid0000-0002-0768-464X
person.identifier.orcid0000-0001-8637-545X
person.identifier.orcid0000-0003-1316-658X
person.identifier.ridG-9688-2012
person.identifier.ridJ-3911-2013
person.identifier.ridM-4126-2013
person.identifier.scopus-author-id54895771800
person.identifier.scopus-author-id53463298700
person.identifier.scopus-author-id55916875600
person.identifier.scopus-author-id55892980300
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project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.nameFundação para a Ciência e a Tecnologia
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project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameEuropean Commission
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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