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Spectrum of genetic diversity and networks of clonal organisms

2007Journal article Restricted access
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dc.contributor.authorRozenfeld, A. F.
dc.contributor.authorARNAUD-HAOND, Sophie
dc.contributor.authorHernández-García, E.
dc.contributor.authorEguíluz, Víctor M.
dc.contributor.authorMatías, M. A.
dc.contributor.authorSerrão, Ester
dc.contributor.authorDuarte, C. M.
dc.date.accessioned2014-06-02T15:41:51Z
dc.date.available2014-06-02T15:41:51Z
dc.date.issued2007
dc.date.updated2014-05-21T13:37:22Z
dc.description.abstractClonal reproduction characterizes a wide range of species including clonal plants in terrestrial and aquatic ecosystems, and clonal microbes such as bacteria and parasitic protozoa, with a key role in human health and ecosystem processes. Clonal organisms present a particular challenge in population genetics because, in addition to the possible existence of replicates of the same genotype in a given sample, some of the hypotheses and concepts underlying classical population genetics models are irreconcilable with clonality. The genetic structure and diversity of clonal populations were examined using a combination of new tools to analyse microsatellite data in the marine angiosperm Posidonia oceanica. These tools were based on examination of the frequency distribution of the genetic distance among ramets, termed the spectrum of genetic diversity (GDS), and of networks built on the basis of pairwise genetic distances among genets. Clonal growth and outcrossing are apparently dominant processes, whereas selfing and somatic mutations appear to be marginal, and the contribution of immigration seems to play a small role in adding genetic diversity to populations. The properties and topology of networks based on genetic distances showed a ‘small-world’ topology, characterized by a high degree of connectivity among nodes, and a substantial amount of substructure, revealing organization in subfamilies of closely related individuals. The combination of GDS and network tools proposed here helped in dissecting the influence of various evolutionary processes in shaping the intra-population genetic structure of the clonal organism investigated; these therefore represent promising analytical tools in population genetics.por
dc.identifier.citationRozenfeld, A.F.; Arnaud-Haond, S.; Hernández-García, E.; Eguíluz, V.M.; Matías, M.A.; Serrão, E.A.; Duarte, C.M.Spectrum of genetic diversity and networks of clonal organisms, Journal of the Royal Society Interface, 4, 17, 1093-11, 2007.por
dc.identifier.doihttp://dx.doi.org/10.1098/rsif.2007.0230
dc.identifier.issn1742-5689
dc.identifier.otherAUT: ESE00527;
dc.identifier.urihttp://hdl.handle.net/10400.1/4150
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherThe Royal Societypor
dc.relation.publisherversionhttp://rsif.royalsocietypublishing.org/content/4/17/1093.fullpor
dc.subjectGenetic networkspor
dc.subjectSmall-world networkspor
dc.subjectGenetic diversitypor
dc.subjectClonal organismspor
dc.titleSpectrum of genetic diversity and networks of clonal organismspor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage1102por
oaire.citation.issue17por
oaire.citation.startPage1093por
oaire.citation.titleInterfacepor
oaire.citation.volume4por
person.familyNameARNAUD-HAOND
person.familyNameEguíluz
person.familyNameSerrao
person.givenNameSophie
person.givenNameVíctor M.
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.orcid0000-0003-1133-1289
person.identifier.orcid0000-0003-1316-658X
person.identifier.ridB-9655-2008
person.identifier.scopus-author-id6602532118
person.identifier.scopus-author-id6603824902
person.identifier.scopus-author-id7004093604
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication2b10c79a-8ca9-4449-ba02-0c240f00d921
relation.isAuthorOfPublication3d98d1bb-a6ac-4b8f-9e57-1df301ac2d15
relation.isAuthorOfPublication45ccfe90-155c-4d6f-9e86-8f0fd064005f
relation.isAuthorOfPublication.latestForDiscovery3d98d1bb-a6ac-4b8f-9e57-1df301ac2d15

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