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Genetic diversity of a marine foundation species,Laminaria hyperborea(Gunnerus) Foslie, along the coast of Ireland

2020-07Journal article Restricted access
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dc.contributor.authorSchoenrock, Kathryn M.
dc.contributor.authorO'Connor, Aisha M.
dc.contributor.authorMauger, Stephane
dc.contributor.authorValero, Myriam
dc.contributor.authorMACHADO, JOÃO NEIVA
dc.contributor.authorSerrao, Ester
dc.contributor.authorKrueger-Hadfield, Stacy A.
dc.date.accessioned2021-06-24T11:35:27Z
dc.date.available2021-06-24T11:35:27Z
dc.date.issued2020-07
dc.description.abstractWorldwide, kelp populations are stressed by warming, increased storms and other anthropogenic disturbances. Marine population distributions are projected to retreat poleward with climate change if they cannot adapt to changing conditions, which would potentially lead to a regime shift in subtidal habitats. In Northern Europe,Laminaria hyperboreais a subtidal ecosystem engineer whose distribution has shifted over millennia, leaving predicted areas of high genetic diversity from the last glacial maximum (LGM) near its southern distribution limit in the Iberian Peninsula. In Ireland,L. hyperboreastructures communities by supporting diverse faunal assemblages and producing large quantities of organic carbon throughout the year. We investigated the genetic diversity of eight populations, ranging from the southern coast to the north-west of Ireland, using nine microsatellite loci. Diversity was found to be highest in Lough Hyne, a Special Area of Conservation (SAC), near the predicted climate refugium. We found evidence of isolation by distance, with high connectivity between populations that were geographically close, probably driven by short range dispersal ofL. hyperboreapropagules. Genetic diversity (measured as expected heterozygosity and allelic richness) was highest at Lough Hyne, and decreased northwards, as predicted from past range shifts. Expected heterozygosity was highest at Lough Hyne (0.706) and decreased northward, with the lowest value at Bridges of Ross (0.283). Based on these patterns, further fine-scale investigation into population diversity, dispersal and potential resilience in Irish kelp forests are necessary as warming and non-native species are observed more and more frequently.
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1080/09670262.2020.1724338
dc.identifier.issn0967-0262
dc.identifier.urihttp://hdl.handle.net/10400.1/16442
dc.language.isoeng
dc.peerreviewedyes
dc.publisherTaylor & Francis
dc.subjectBoreal
dc.subjectClimate refugia
dc.subjectDispersal
dc.subjectKelp
dc.subjectMicrosatellites
dc.subjectPopulation genetics
dc.subjectResilience
dc.subjectSpecies distribution
dc.subject.otherPlant Sciences
dc.titleGenetic diversity of a marine foundation species,Laminaria hyperborea(Gunnerus) Foslie, along the coast of Ireland
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage326
oaire.citation.issue3
oaire.citation.startPage310
oaire.citation.titleEuropean Journal of Phycology
oaire.citation.volume55
person.familyNameNEIVA MACHADO
person.familyNameSerrao
person.givenNameJOÃO PEDRO
person.givenNameEster A.
person.identifierC-6686-2012
person.identifier.ciencia-id0A1B-3A75-C2FE
person.identifier.ciencia-id5B13-B26E-B1EC
person.identifier.orcid0000-0003-3162-9170
person.identifier.orcid0000-0003-1316-658X
person.identifier.scopus-author-id7004093604
rcaap.rightsrestrictedAccess
rcaap.typearticle
relation.isAuthorOfPublication952590ce-2915-4113-b958-634782712e34
relation.isAuthorOfPublication45ccfe90-155c-4d6f-9e86-8f0fd064005f
relation.isAuthorOfPublication.latestForDiscovery45ccfe90-155c-4d6f-9e86-8f0fd064005f

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