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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Cytochrome b barcoding, molecular systematics and geographic differentiation in rabbitfishes (Siganidae)
Comptes Rendus - Biologies, Volume 330, No. 1, Year 2007
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Description
The fish genus Siganus (Siganidae) is widely distributed in the coastal habitats of all the tropical Indo-Pacific, with 28 nominal species recognized so far, based on general morphology and coloration patterns. A mitochondrial phylogeny of 16 Siganidae species, based on the partial nucleotide sequences of the cytochome b gene, was produced. Individual haplotypes of given nominal species generally clustered at the extremity of long branches, thus validating the current taxonomy. However, S. lineatus haplotypes formed a paraphyletic group including S. guttatus, while S. fuscescens haplotypes were apparently splitted in two groups, calling for further investigation. S. woodlandi and S. argenteus formed a monophyletic group, as expected from their close morphological relatedness, although they were separated by a substantial, 14.5-16.3% nucleotide distance. Among eight species sampled from different locations across the Indo-West Pacific, S. argenteus and S. spinus showed the lowest degree of geographic differentiation, a result that correlated well with their extended pelagic larval stage. Fixation index estimates were high in all six other species tested (S. doliatus, S. fuscescens, S. lineatus, S. puellus, S. punctatus, S. vulpinus). The cytochrome b gene fragment chosen here proved useful as a barcode in Siganidae. To cite this article: S. Lemer et al., C. R. Biologies 330 (2007). © 2006 Académie des sciences.
Authors & Co-Authors
Aurelle, Didier
France, Marseille
Institut Méditerranéen D'océanologie
Vigliola, Laurent
New Caledonia, Noumea
Secretariat of the Pacific Community Noumea
Durand, Jean Dominique
France, Plouzane
Ifremer Institut Francais de Recherche Pour L'exploitation de la Mer
Borsa, Philippe
New Caledonia, Noumea
Institut de Recherche Pour le Developpement Noumea
Statistics
Citations: 43
Authors: 4
Affiliations: 4
Identifiers
Doi:
10.1016/j.crvi.2006.09.002
ISSN:
16310691
Research Areas
Genetics And Genomics