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Citation for Study 9986

About Citation title: "Phylogenetic analysis of Peri-Mediterranean blennies of the genus Salaria: molecular insights on the colonization of freshwaters".
About This study was previously identified under the legacy study ID S2322 (Status: Published).

Citation

Almada V., Robalo J., Levy A., Freyhof J., Bernardi G., & Doadrio I. 2009. Phylogenetic analysis of Peri-Mediterranean blennies of the genus Salaria: molecular insights on the colonization of freshwaters. Molecular Phylogenetics and Evolution, 52(2): 424-431.

Authors

  • Almada V.
  • Robalo J.
  • Levy A.
  • Freyhof J.
  • Bernardi G.
  • Doadrio I.

Abstract

In this paper, the phylogenetic relationships of the marine blenny Salaria pavo and the freshwater S. fluviatilis and S. economidisi were analysed using 4 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 these species 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 true species. Thus, further studies on the taxonomy of these freshwater blennies are urgently needed.

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  • Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S9986
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