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Within-population spatial genetic structure, neighbourhood size and clonal subrange in the seagrass Cymodocea nodosa

2005Journal article Restricted access
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dc.contributor.authorAlberto, F.
dc.contributor.authorGouveia, Licínia
dc.contributor.authorARNAUD-HAOND, Sophie
dc.contributor.authorPérez-Lloréns, J. L.
dc.contributor.authorDuarte, C. M.
dc.contributor.authorSerrão, Ester
dc.date.accessioned2014-06-04T14:13:21Z
dc.date.available2014-06-04T14:13:21Z
dc.date.issued2005
dc.date.updated2014-05-21T14:01:48Z
dc.description.abstractThe extent of clonality within populations strongly influences their spatial genetic structure (SGS), yet this is hardly ever thoroughly analysed. We employed spatial autocorrelation analysis to study effects of sexual and clonal reproduction on dispersal of the dioecious seagrass Cymodocea nodosa. Analyses were performed both at genet level (i.e. excluding clonal repeats) and at ramet level. Clonal structure was characterized by the clonal subrange, a spatial measure of the linear limits where clonality still affects SGS. We show that the clonal subrange is equivalent to the distance where the probability of clonal identity approaches zero. This combined approach was applied to two meadows with different levels of disturbance, Cadiz (stable) and Alfacs (disturbed). Genotypic richness, the proportion of the sample representing distinct genotypes, was moderate (0.38 Cadiz, 0.46 Alfacs) mostly due to dominance of a few clones. Expected heterozygosities were comparable to those found in other clonal plants. SGS analyses at the genet level revealed extremely restricted gene dispersal in Cadiz (Sp = 0.052, a statistic reflecting the decrease of pairwise kinship with distance), the strongest SGS found for seagrass species, comparable only to values for selfing herbaceous land plants. At Cadiz the clonal subrange extended across shorter distances (20–25 m) than in Alfacs (30–35 m). Comparisons of sexual and vegetative components of gene dispersal suggest that, as a dispersal vector within meadows, clonal spread is at least as important as sexual reproduction. The restricted dispersal and SGS pattern in both meadows indicates that the species follows a repeated seedling recruitment strategy.por
dc.identifier.citationAlberto, F.; Gouveia, L.; Arnaud-Haond, S.; Pérez-Lloréns, J.L.; Duarte, C.M.; Serrão, E.A.Within-population spatial genetic structure, neighbourhood size and clonal subrange in the seagrass Cymodocea nodosa, Molecular Ecology, 14, 9, 2669-26, 2005.por
dc.identifier.doihttp://dx.doi.org/ 10.1111/j.1365-294X.2005.02640.x
dc.identifier.issn0962-1083
dc.identifier.otherAUT: ESE00527;
dc.identifier.urihttp://hdl.handle.net/10400.1/4188
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherWileypor
dc.relation.publisherversionhttp://onlinelibrary.wiley.com/doi/10.1111/j.1365-294X.2005.02640.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.subjectClonal plantpor
dc.subjectClonal subrangepor
dc.subjectCymodocea nodosapor
dc.subjectMicrosatellitespor
dc.subjectSeagrasspor
dc.titleWithin-population spatial genetic structure, neighbourhood size and clonal subrange in the seagrass Cymodocea nodosapor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage2681por
oaire.citation.issue9por
oaire.citation.startPage2669por
oaire.citation.titleMolecular Ecologypor
oaire.citation.volume14por
person.familyNameAlberto
person.familyNameGouveia
person.familyNameARNAUD-HAOND
person.familyNameSerrao
person.givenNameFilipe
person.givenNameLicínia
person.givenNameSophie
person.givenNameEster A.
person.identifier1488456
person.identifierC-6686-2012
person.identifier.ciencia-idBD15-2AC7-8AA3
person.identifier.ciencia-id5A15-FF67-4075
person.identifier.ciencia-id5B13-B26E-B1EC
person.identifier.orcid0000-0003-0593-3240
person.identifier.orcid0000-0002-5531-8476
person.identifier.orcid0000-0001-5814-8452
person.identifier.orcid0000-0003-1316-658X
person.identifier.ridM-7650-2013
person.identifier.scopus-author-id6701653422
person.identifier.scopus-author-id6602532118
person.identifier.scopus-author-id7004093604
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication4e95893d-e3c7-462f-a897-49bb8999b65b
relation.isAuthorOfPublication0a47f530-fba4-4b60-a772-ca999d752595
relation.isAuthorOfPublication2b10c79a-8ca9-4449-ba02-0c240f00d921
relation.isAuthorOfPublication45ccfe90-155c-4d6f-9e86-8f0fd064005f
relation.isAuthorOfPublication.latestForDiscovery45ccfe90-155c-4d6f-9e86-8f0fd064005f

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