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Allozyme and mtDNA variation of white seabream Diplodus sargus populations in a transition area between western and eastern Mediterranean basins (Siculo-Tunisian Strait)

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dc.contributor.authorKaoueche, M.
dc.contributor.authorBahri-Sfar, L.
dc.contributor.authorGonzalez-Wanguemert, Mercedes
dc.contributor.authorPerez-Ruzafa, A.
dc.contributor.authorBen Hassine, O. K.
dc.date.accessioned2016-10-07T10:35:53Z
dc.date.available2016-10-07T10:35:53Z
dc.date.issued2011
dc.description.abstractTo investigate the possible influence of the Siculo-Tunisian Strait on the genetic structure of white seabream Diplodus sargus, 13 polymorphic allozyme loci and a fragment of the cytochrome b mitochondrial DNA were analysed. Allozyme data indicated a moderate but significant differentiation between some north-eastern (Bizerta, Ghar El Melh Lagoon and Mahdia) and southern (Gabes Gulf and El Biban Lagoon) samples. This heterogeneity was also highlighted after removing PGM* and PGI-1* loci which may be under selection. These results can be explained by the chaotic genetic patchiness hypothesis. In contrast, the mtDNA data indicated genetic homogeneity among localities showing the absence of structure in white seabream populations across the Siculo-Tunisian Strait. Historical demography of this species suggests that it has undergone a recent population expansion as a consequence of a bottleneck event during the Pleistocene glaciations.
dc.identifier.doihttp://dx.doi.org/10.2989/1814232X.2011.572342
dc.identifier.issn1814-2338
dc.identifier.issn1814-232X
dc.identifier.urihttp://hdl.handle.net/10400.1/8710
dc.language.isoeng
dc.peerreviewedyes
dc.publisherTaylor & Francis
dc.relation.isbasedonWOS:000291498700007
dc.subjectChaotic genetic patchiness
dc.subjectCytochrome b
dc.subjectDiscrepancy
dc.subjectGenetic connectivity
dc.subjectTunisian coasts
dc.subjectWahlund effect
dc.titleAllozyme and mtDNA variation of white seabream Diplodus sargus populations in a transition area between western and eastern Mediterranean basins (Siculo-Tunisian Strait)
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage90
oaire.citation.issue1
oaire.citation.startPage79
oaire.citation.titleAfrican Journal of Marine Science
oaire.citation.volume33
person.familyNameGonzalez-Wanguemert
person.givenNameMercedes
person.identifier.orcid0000-0002-0656-358X
person.identifier.ridM-3467-2013
person.identifier.scopus-author-id55898776000
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication480ebbab-0b12-422b-90f4-998970e3aa00
relation.isAuthorOfPublication.latestForDiscovery480ebbab-0b12-422b-90f4-998970e3aa00

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