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Genetic structure at range edge: Low diversity and high inbreeding in Southeast Asian mangrove (Avicennia marina) populations

2006Journal article Restricted
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dc.contributor.authorARNAUD-HAOND, Sophie
dc.contributor.authorTeixeira, Sara
dc.contributor.authorMassa, S. I.
dc.contributor.authorBillot, C.
dc.contributor.authorSaenger, P.
dc.contributor.authorCoupland, G.
dc.contributor.authorDuarte, C. M.
dc.contributor.authorSerrão, Ester
dc.date.accessioned2014-06-03T09:34:22Z
dc.date.available2014-06-03T09:34:22Z
dc.date.issued2006
dc.date.updated2014-05-21T13:40:02Z
dc.description.abstractUnderstanding the genetic composition and mating systems of edge populations provides important insights into the environmental and demographic factors shaping species’ distribution ranges. We analysed samples of the mangrove Avicennia marina from Vietnam, northern Philippines and Australia, with microsatellite markers. We compared genetic diversity and structure in edge (Southeast Asia, and Southern Australia) and core (North and Eastern Australia) populations, and also compared our results with previously published data from core and southern edge populations. Comparisons highlighted significantly reduced gene diversity and higher genetic structure in both margins compared to core populations, which can be attributed to very low effective population size, pollinator scarcity and high environmental pressure at distribution margins. The estimated level of inbreeding was significantly higher in northeastern populations compared to core and southern populations. This suggests that despite the high genetic load usually associated with inbreeding, inbreeding or even selfing may be advantageous in margin habitats due to the possible advantages of reproductive assurance, or local adaptation. The very high level of genetic structure and inbreeding show that populations of A. marina are functioning as independent evolutionary units more than as components of a metapopulation system connected by gene flow. The combinations of those characteristics make these peripheral populations likely to develop local adaptations and therefore to be of particular interest for conservation strategies as well as for adaptation to possible future environmental changes.por
dc.identifier.citationArnaud-Haond, S.; Teixeira, S.; Massa, S.I.; Billot, C.; Saenger, P.; Coupland, G.; Duarte, C.M.; Serrão, E.A.Genetic structure at range edge: Low diversity and high inbreeding in Southeast Asian mangrove (Avicennia marina) populations, Molecular Ecology, 15, 12, 3515-35, 2006.por
dc.identifier.doihttp://dx.doi.org/ 10.1111/j.1365-294X.2006.02997.x
dc.identifier.issn0567-7572
dc.identifier.otherAUT: ESE00527;
dc.identifier.urihttp://hdl.handle.net/10400.1/4153
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherInternational Society for Horticultural Sciencepor
dc.relation.publisherversionhttp://onlinelibrary.wiley.com/doi/10.1111/j.1365-294X.2006.02997.x/abstract?systemMessage=Wiley+Online+Library+will+be+disrupted+Saturday%2C+7+June+from+10%3A00-15%3A00+BST+%2805%3A00-10%3A00+EDT%29+for+essential+maintenancepor
dc.subjectAvicennia marinapor
dc.subjectBiogeographic limitspor
dc.subjectGenetic diversitypor
dc.subjectMangrovepor
dc.subjectMating systempor
dc.subjectspecies distribution marginspor
dc.titleGenetic structure at range edge: Low diversity and high inbreeding in Southeast Asian mangrove (Avicennia marina) populationspor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage3525por
oaire.citation.issue2por
oaire.citation.startPage3515por
oaire.citation.titleMolecular Ecologypor
oaire.citation.volume15por
person.familyNameARNAUD-HAOND
person.familyNameTeixeira
person.familyNameSerrao
person.givenNameSophie
person.givenNameSara
person.givenNameEster A.
person.identifierC-6686-2012
person.identifier.ciencia-id5A15-FF67-4075
person.identifier.ciencia-id5B13-B26E-B1EC
person.identifier.orcid0000-0001-5814-8452
person.identifier.orcid0000-0003-0419-2348
person.identifier.orcid0000-0003-1316-658X
person.identifier.ridM-3424-2013
person.identifier.scopus-author-id6602532118
person.identifier.scopus-author-id23986333100
person.identifier.scopus-author-id7004093604
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication2b10c79a-8ca9-4449-ba02-0c240f00d921
relation.isAuthorOfPublicationb461f1bb-dfdb-410f-b579-647fa97957ca
relation.isAuthorOfPublication45ccfe90-155c-4d6f-9e86-8f0fd064005f
relation.isAuthorOfPublication.latestForDiscovery45ccfe90-155c-4d6f-9e86-8f0fd064005f

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