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Phylogenetic analysis of peri-mediterranean blennies of the genus Salaria: Molecular insights on the colonization of freshwaters

dc.contributor.authorAlmada, Vítor Carvalho
dc.contributor.authorRobalo, Joana Isabel
dc.contributor.authorLevy, André
dc.contributor.authorFreyhof, J.
dc.contributor.authorBernardi, Giacomo
dc.contributor.authorDoadrio, Ignacio
dc.date.accessioned2012-05-12T11:30:10Z
dc.date.available2012-05-12T11:30:10Z
dc.date.issued2009
dc.description.abstractIn this paper, the phylogenetic relationships of the marine blenny Salaria pavo and the freshwater S. fluviatilis and S. economidisi were analyzed using four molecular markers: the mitochondrial 12S rRNA, 16S rRNA, and the control region and the nuclear first intron of the S7 ribosomal protein. The monophyly of Salaria is supported, as well as that of S. pavo and that of all the freshwater members of Salaria. Thus, the present results support a single origin for all freshwater Mediterranean blenniids. Our results reject the placement of the species of Salaria in the genus Lipophrys as proposed in previous studies. Using a molecular clock calibrated with trans-Isthmian geminate blenniid species, the split between the ancestor of the freshwater lineage and the ancestor of S. pavo is tentatively placed in the Middle Miocene (well before the Messinian). The marine S. pavo displays a very low level of intraspecific sequence divergence consistent with a Pleistocene bottleneck. S. fluviatilis is a paraphyletic entity with S. economidisi nested within it. A Moroccan population of S. fluviatilis is more divergent than S. economidisi, both in nuclear and mitochondrial genes. Fish from Israel together with some Turkish samples represent the second oldest split. It is argued that these populations may represent cryptic species. Thus, further studies on the taxonomy of these freshwater blennies are urgently needed.por
dc.identifier.citationMolecular Phylogenetics and Evolution, 52, 424-431por
dc.identifier.issn1055-7903
dc.identifier.urihttp://hdl.handle.net/10400.12/1377
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherElsevierpor
dc.subjectSalaria fluviatilispor
dc.subjectSalaria pavopor
dc.subjectMolecular clockpor
dc.subject12s rRNA genepor
dc.subject16sRNA genepor
dc.subjectMitochondrial control regionpor
dc.subjectS7 ribosomal protein genepor
dc.titlePhylogenetic analysis of peri-mediterranean blennies of the genus Salaria: Molecular insights on the colonization of freshwaterspor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlaceAmsterdampor
oaire.citation.endPage431por
oaire.citation.startPage424por
oaire.citation.titleMolecular Phylogenetics and Evolutionpor
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor

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