Genetic variability and differentiation in Leuciscus (Telestes) souffia. Taxonomic and conservation inferences |
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| Affiliation: | 1. University of Geneva, Institute for Environmental Sciences, 66 Boulevard Carl-Vogt, 1205, Geneva, Switzerland;2. Climatic Change and Climate Impacts (C3i), Institute for Environmental Sciences, 66 Boulevard Carl-Vogt, 1205, Geneva, Switzerland;3. Department of Earth and Environmental Sciences, University of Geneva, 13 rue des Maraîchers, 1205, Geneva, Switzerland;1. University of Ottawa, Department of Biology, 20 Marie-Curie, K1N6N5, Ottawa, ON, Canada;2. National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, MD 20894, USA |
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| Abstract: | Genetic variability of eight populations of Leuciscus (Telestes) souffia from France, Italy and Slovenia, and one of Leuciscus (Squalius) carolitertii from Spain was analysed using allozymic electrophoresis. For L (Telestes) souffia the parameters of variability ranged from P = 1 8.2 to 48.5 % and Ho = 0.023 to 0.092, values included in the global averages found for freshwater fishes. The phylogenetic relationships among these populations lead us to consider the souffia species belonging to the genus Telestes, and to subdivide it into two species: souffia (with at least two subspecies: souffia in France and agassizi in Slovenia), and muticellus. The genetic structure found within the French populations showed a certain differentiation between the Hérault Basin and the Var/Argens populations, recommending the preservation of these entities that could represent different adapted genetic pools. In the same way, the Italian region should be studied in detail, since the populations analysed from Bevera and Staffora Rivers (T. muticellus) showed evidence of a break of genetic flow (including a diagnostic locus between them). |
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