The Ag-NOR phenotypes observed in the karyotypes of Hypostomus soniae, detected by silver nitrate impregnation, FISH with 18S probes. The numbers 14, 15, 25, 26 and 31 represent the chromosomal pairs; sm = submetacentric; a = acrocentric.

 
 
  Part of: de Oliveira LC, Ribeiro MO, Costa GM, Zawadzki CH, Prizon-Nakajima AC, Borin-Carvalho LA, Martins-Santos I, Portela-Castro ALB (2019) Cytogenetic characterization of Hypostomus soniae Hollanda-Carvalho & Weber, 2004 from the Teles Pires River, southern Amazon basin: evidence of an early stage of an XX/XY sex chromosome system. Comparative Cytogenetics 13(4): 411-422. https://doi.org/10.3897/CompCytogen.v13i4.36205