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Establishment of a coastal fish in the Azores : Recent colonisation or sudden expansion of an ancient relict population?

2015Journal article Restricted access
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dc.contributor.authorStefanni, Sergio
dc.contributor.authorCastilho, Rita
dc.contributor.authorSala-Bozano, Maria
dc.contributor.authorRobalo, Joana Isabel
dc.contributor.authorFrancisco, Sara Martins
dc.contributor.authorSantos, Ricardo Serrão
dc.contributor.authorMarques, N.
dc.contributor.authorBrito, Alberto
dc.contributor.authorAlmada, Vítor Carvalho
dc.contributor.authorMariani, Stefano
dc.date.accessioned2015-12-28T19:26:22Z
dc.date.available2015-12-28T19:26:22Z
dc.date.issued2015
dc.description.abstractThe processes and timescales associated with ocean-wide changes in the distribution of marine species have intrigued biologists since Darwin's earliest insights into biogeography. The Azores, a mid-Atlantic volcanic archipelago located >1000 km off the European continental shelf, offers ideal opportunities to investigate phylogeographic colonisation scenarios. The benthopelagic sparid fish known as the common two-banded seabream (Diplodus vulgaris) is now relatively common along the coastline of the Azores archipelago, but was virtually absent before the 1990s. We employed a multiple genetic marker approach to test whether the successful establishment of the Azorean population derives from a recent colonisation from western continental/island populations or from the demographic explosion of an ancient relict population. Results from nuclear and mtDNA sequences show that all Atlantic and Mediterranean populations belong to the same phylogroup, though microsatellite data indicate significant genetic divergence between the Azorean sample and all other locations, as well as among Macaronesian, western Iberian and Mediterranean regions. The results from Approximate Bayesian Computation indicate that D. vulgaris has likely inhabited the Azores for ∼40 (95% confidence interval (CI): 5.5-83.6) to 52 (95% CI: 6.32-89.0) generations, corresponding to roughly 80-150 years, suggesting near-contemporary colonisation, followed by a more recent demographic expansion that could have been facilitated by changing climate conditions. Moreover, the lack of previous records of this species over the past century, together with the absence of lineage separation and the presence of relatively few private alleles, do not exclude the possibility of an even more recent colonisation event.pt_PT
dc.description.sponsorshipMarinERA project ‘Marine phylogeographic structuring during climate change: the signature of leading and rear edge of range shifting populations’; Fundação para a Ciência e a Tecnologia (FCT); Marie Curie Grant; EU under the FP7- People-2012-COFUND; Regional, National and International Programmes; OE and COMPETE; DRCTC/GovAzorespt_PT
dc.identifier.citationHeredity, 115, 527-537. doi: 10.1038/hdy.2015.55pt_PT
dc.identifier.doi10.1038/hdy.2015.55pt_PT
dc.identifier.issn0018-067X
dc.identifier.urihttp://hdl.handle.net/10400.12/4225
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherNature Publishing Grouppt_PT
dc.relation531pt_PT
dc.relationStrategic Project - UI 331 - 2011-2012
dc.relationBest Action for National Development of International Expert Researchers Activity
dc.relationFLUTUAÇÕES INTERANUAIS DA COMPOSIÇÃO GENÉTICA: ESTIMATIVA DO TAMANHO EFECTIVO DE POPULAÇÕES DE PEIXES COSTEIROS
dc.titleEstablishment of a coastal fish in the Azores : Recent colonisation or sudden expansion of an ancient relict population?pt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleStrategic Project - UI 331 - 2011-2012
oaire.awardTitleBest Action for National Development of International Expert Researchers Activity
oaire.awardTitleFLUTUAÇÕES INTERANUAIS DA COMPOSIÇÃO GENÉTICA: ESTIMATIVA DO TAMANHO EFECTIVO DE POPULAÇÕES DE PEIXES COSTEIROS
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/PEst-OE%2FMAR%2FUI0331%2F2011/PT
oaire.awardURIinfo:eu-repo/grantAgreement/EC/FP7/600407/EU
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/OE/SFRH%2FBPD%2F84923%2F2012/PT
oaire.citation.conferencePlaceLondonpt_PT
oaire.citation.endPage537pt_PT
oaire.citation.startPage527pt_PT
oaire.citation.titleHereditypt_PT
oaire.citation.volume115pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamFP7
oaire.fundingStreamOE
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameEuropean Commission
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isProjectOfPublication96890d2c-1aa4-4408-9eb9-d0f1e6bcac32
relation.isProjectOfPublication413e2420-f004-4f63-bf6b-df0411bf3769
relation.isProjectOfPublication841c4928-c01a-4476-bae3-1aa092dc66ab
relation.isProjectOfPublication.latestForDiscovery841c4928-c01a-4476-bae3-1aa092dc66ab

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