COMPARATIVE CYTOGENETIC ANALYSIS WITH DIFFERENTIAL STAINING IN 3 SPECIES OF LIOLAEMUS (SQUAMATA, TROPIDURIDAE)

Comparative cytogenetic studies based on conventional staining, CBG-ba nding, RBG-banding, and Ag-NOR staining, were performed on three speci es of Liolaemus: L. occipitalis, L. lutzae and L. wiegmannii. The thre e species have 2n = 34, with closely similar karyotypes and an XX:XY m echanism of sex determination. The cytogenetic analysis allowed the de tection of differences among the macrochromosomes of the three species and some other features characteristic of each species. The karyotype of L. occipitalis and the banding patterns of L. lutzae and L. wiegma nnii have not been reported previously.