Abstract
The Etruscan chub Squalius lucumonis (Bianco, 1983) is an endemic endangered fish inhabiting the lakes and rivers of Central Italy. A microsatellite-enriched genomic library was constructed in order to develop microsatellite loci and eight polymorphic loci were isolated from this species to assess the level of genetic diversity in fifty individuals of S. lucumonis collected in the Umbria Region. The number of alleles ranged from four (Sluc12) to 18 (Sluc4). Observed and expected heterozygosity per locus ranged from 0.05 (Sluc12) to 0.80 (Sluc4; Sluc7 and Sluc11) and from 0.22 (Sluc12) to 0.90 (Sluc4), respectively. Furthermore, these loci were tested on ten other Cyprinidae species and four freshwater fish species belonging to other families. Successful cross-priming amplifications were obtained for several species of Cyprinidae, whereas no positive results were obtained for other species. The availability of the reported microsatellite loci will facilitate population structure investigations of these species aiming to phylogeographical approaches and conservation strategies.
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