High rDNA polymorphisms in Astyanax lacustris (Characiformes: Characidae): new insights about the cryptic diversity in A. bimaculatus species complex with emphasis on the Paraná River basin
Sandro Tonello, Daniel R. Blanco, Fiorindo J. Cerqueira, Natália L. Lira, Josiane B. Traldi, Carla S. Pavanelli, Vladimir P. Margarido, Mariane Gavazzoni, Marcos V. Pupo and Roberto L. Lui