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Intraspecific genetic lineages of a marine mussel show behavioural divergence and spatial segregation over a tropical/subtropical biogeographic transition

2015-05-31Journal article Open access
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dc.contributor.authorZardi, Gerardo I.
dc.contributor.authorNicastro, Katy R
dc.contributor.authorMcQuaid, C. D.
dc.contributor.authorCastilho, Rita
dc.contributor.authorCosta, Joana
dc.contributor.authorSerrão, Ester
dc.contributor.authorPearson, G. A.
dc.date.accessioned2015-09-09T10:51:48Z
dc.date.available2015-09-09T10:51:48Z
dc.date.issued2015-05-31
dc.date.updated2015-08-03T15:57:15Z
dc.description.abstractBackground: Intraspecific variability is seen as a central component of biodiversity. We investigated genetic differentiation, contemporary patterns of demographic connectivity and intraspecific variation of adaptive behavioural traits in two lineages of an intertidal mussel (Perna perna) across a tropical/subtropical biogeographic transition. Results: Microsatellite analyses revealed clear genetic differentiation between western (temperate) and eastern (subtropical/tropical) populations, confirming divergence previously detected with mitochondrial (COI) and nuclear (ITS) markers. Gene flow between regions was predominantly east-to-west and was only moderate, with higher heterozygote deficiency where the two lineages co-occur. This can be explained by differential selection and/or oceanographic dynamics acting as a barrier to larval dispersal. Common garden experiments showed that gaping (periodic closure and opening of the shell) and attachment to the substratum differed significantly between the two lineages. Western individuals gaped more and attached less strongly to the substratum than eastern ones. Conclusions: These behavioural differences are consistent with the geographic and intertidal distributions of each lineage along sharp environmental clines, indicating their strong adaptive significance. We highlight the functional role of diversity below the species level in evolutionary trends and the need to understand this when predicting biodiversity responses to environmental change.por
dc.description.sponsorshipFundação para a Ciência e a Tecnologiapor
dc.identifier.citationBMC Evolutionary Biology. 2015 May 31;15(1):100por
dc.identifier.doi10.1186/s12862-015-0366-5
dc.identifier.urihttp://hdl.handle.net/10400.1/6752
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherBioMed Centralpor
dc.rights.holderZardi et al.; licensee BioMed Central.
dc.subjectGenetic diversitypor
dc.subjectPerna pernapor
dc.subjectMarine connectivitypor
dc.titleIntraspecific genetic lineages of a marine mussel show behavioural divergence and spatial segregation over a tropical/subtropical biogeographic transitionpor
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FBIA-BEC%2F103916%2F2008/PT
oaire.citation.issue(1):100por
oaire.citation.titleBMC Evolutionary Biologypor
oaire.citation.volume15por
oaire.fundingStream3599-PPCDT
person.familyNameNicastro
person.familyNameCastilho
person.familyNameSerrao
person.familyNamePearson
person.givenNameKaty
person.givenNameRita
person.givenNameEster A.
person.givenNameGareth Anthony
person.identifier452212
person.identifierC-6686-2012
person.identifier113536
person.identifier.ciencia-id3E12-714B-AFE5
person.identifier.ciencia-id0513-0407-A6C1
person.identifier.ciencia-id5B13-B26E-B1EC
person.identifier.ciencia-id3315-9919-1A52
person.identifier.orcid0000-0002-7071-141X
person.identifier.orcid0000-0003-0727-3688
person.identifier.orcid0000-0003-1316-658X
person.identifier.orcid0000-0002-0768-464X
person.identifier.ridD-2259-2012
person.identifier.ridB-6185-2008
person.identifier.ridJ-3911-2013
person.identifier.scopus-author-id12646675100
person.identifier.scopus-author-id56271196600
person.identifier.scopus-author-id7004093604
person.identifier.scopus-author-id55916875600
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspor
rcaap.typearticlepor
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