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Molecular analysis of the genus Squalius Bonaparte, 1837 (Actinopterygii, Cyprinidae) reveals the existence of a cryptic species of freshwater fishes in Southern Spain

AutorCobo-Simón, Marta; Perea, Silvia ; Doadrio, Ignacio
Fecha de publicaciónsep-2013
CitaciónII Congreso Ibérico de Sistemática Biológica (2013)
ResumenThe Iberian Peninsula is characterized from an ichthyological point of view for a high number of endemisms (Doadrio, 2001) as consequence, principally, of its geographical isolation during main of the Cenozoic. The taxonomy of the Spanis freshwater fishes was mainly precluded for the monumental work of Lozano Rey (1935). This work considered the same origin to the Iberian and the rest of European fish fauna. Differences in morphology many times were assigned to small local variations and Spanish populations were assigned taxonomically to subspecies of well recognized central and north European species. This vision of Spanish freshwater fishes has changed because of molecular systematics, which found a high diversity and different origins to this fish fauna. The number of fish species in the inland freshwaters was increasing since 1980 and an endemic cyprinid Squalius malacitanus Doadrio and Carmona 2006 wa currently described. As consequence of a phylogeographical approach to all populations of Squalius malacitanus using nuclear and mitochondrial molecular markers, we found two deep divergent groups. These two groups have higher divergences relative to other Spanish species of the same genus. They are distributed allopatrically, inhabiting one population in the Atlantic slope of Gibraltar Strait and other in the Mediterranean side. We conducted a molecular and morphometric study of Atlantic and Mediterranean populations of Squalius malacitanus in order to characterize the two populations since a taxonomic point of view.
DescripciónPóster presentado en: II Congreso Ibérico de Sistemática Biológica (CISA, Barcelona - 25-27 de Septiembre de 2013)
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