Basic cytogenetics and physical mapping of ribosomal genes in four Astyanax species (Characiformes, Characidae) collected in Middle Paraná River, Iguassu National Park: considerations on taxonomy and systematics of the genus


	Metaphases chromosomes spreads after FISH with 5S rDNA probe (red) and 18S rDNA probe (green) of: a A. abramis b A. asuncionensis c A. correntinus d Astyanax sp. The 5S rDNA and 18S rDNA bearing chromosomes are framed. Bar = 10 µm.

Part of: Paiz LM, Baumgärtner L, da Graça WJ, Margarido VP (2015) Basic cytogenetics and physical mapping of ribosomal genes in four Astyanax species (Characiformes, Characidae) collected in Middle Paraná River, Iguassu National Park: considerations on taxonomy and systematics of the genus. Comparative Cytogenetics 9(1): 54-65. https://doi.org/10.3897/CompCytogen.v9i1.9002