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Travelling in time with networks: revealing present day hybridization versus ancestral polymorphism between two species of brown algae, Fucus vesiculosus and F. spiralis

2011Journal article Open access
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dc.contributor.authorMoalic, Y.
dc.contributor.authorARNAUD-HAOND, Sophie
dc.contributor.authorPerrin, C.
dc.contributor.authorPearson, G. A.
dc.contributor.authorSerrão, Ester
dc.date.accessioned2014-06-03T13:09:38Z
dc.date.available2014-06-03T13:09:38Z
dc.date.issued2011
dc.date.updated2014-05-21T11:46:57Z
dc.description.abstractBackground: Hybridization or divergence between sympatric sister species provides a natural laboratory to study speciation processes. The shared polymorphism in sister species may either be ancestral or derive from hybridization, and the accuracy of analytic methods used thus far to derive convincing evidence for the occurrence of present day hybridization is largely debated. Results: Here we propose the application of network analysis to test for the occurrence of present day hybridization between the two species of brown algae Fucus spiralis and F. vesiculosus. Individual-centered networks were analyzed on the basis of microsatellite genotypes from North Africa to the Pacific American coast, through the North Atlantic. Two genetic distances integrating different time steps were used, the Rozenfeld (RD; based on alleles divergence) and the Shared Allele (SAD; based on alleles identity) distances. A diagnostic level of genotype divergence and clustering of individuals from each species was obtained through RD while screening for exchanges through putative hybridization was facilitated using SAD. Intermediate individuals linking both clusters on the RD network were those sampled at the limits of the sympatric zone in Northwest Iberia. Conclusion: These results suggesting rare hybridization were confirmed by simulation of hybrids and F2 with directed backcrosses. Comparison with the Bayesian method STRUCTURE confirmed the usefulness of both approaches and emphasized the reliability of network analysis to unravel and study hybridization.por
dc.identifier.citationMoalic, Y.; Arnaud-Haond, S.; Perrin, C.; Pearson, G.A.; Serrao, E.A. Travelling in time with networks: Revealing present day hybridization versus ancestral polymorphism between two species of brown algae, Fucus vesiculosus and F. spiralis, BMC Evolutionary Biology, 11, 1, SI-SI, 2011.por
dc.identifier.doihttp://dx.doi.org/10.1186/1471-2148-11-33
dc.identifier.issn1471-2148
dc.identifier.otherAUT: ESE00527;
dc.identifier.urihttp://hdl.handle.net/10400.1/4160
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherBioMed Centralpor
dc.relation.publisherversionhttp://www.biomedcentral.com/1471-2148/11/33por
dc.titleTravelling in time with networks: revealing present day hybridization versus ancestral polymorphism between two species of brown algae, Fucus vesiculosus and F. spiralispor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPageSlpor
oaire.citation.issue1por
oaire.citation.startPageSlpor
oaire.citation.titleBMC Evolutionary Biologypor
oaire.citation.volume11por
person.familyNameARNAUD-HAOND
person.familyNamePearson
person.familyNameSerrao
person.givenNameSophie
person.givenNameGareth Anthony
person.givenNameEster A.
person.identifier113536
person.identifierC-6686-2012
person.identifier.ciencia-id5A15-FF67-4075
person.identifier.ciencia-id3315-9919-1A52
person.identifier.ciencia-id5B13-B26E-B1EC
person.identifier.orcid0000-0001-5814-8452
person.identifier.orcid0000-0002-0768-464X
person.identifier.orcid0000-0003-1316-658X
person.identifier.ridJ-3911-2013
person.identifier.scopus-author-id6602532118
person.identifier.scopus-author-id55916875600
person.identifier.scopus-author-id7004093604
rcaap.rightsopenAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication2b10c79a-8ca9-4449-ba02-0c240f00d921
relation.isAuthorOfPublication0a10c448-c7f5-4c3b-9488-3917c707e35e
relation.isAuthorOfPublication45ccfe90-155c-4d6f-9e86-8f0fd064005f
relation.isAuthorOfPublication.latestForDiscovery45ccfe90-155c-4d6f-9e86-8f0fd064005f

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