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Karyotypes arranged from Giemsa-stained chromosomes of: a Astyanax abramis c Astyanax asuncionensis e Astyanax correntinus g Astyanax sp.; and from C-banded chromosomes of: b Astyanax abramis d Astyanax asuncionensis f Astyanax correntinus h Astyanax sp. The AgNORs bearing chromosomes are framed. Bar = 10 µm.
