Fig. 3.
GISH results using Triatoma infestans genomic DNA (gDNA) probe (labelled in yellow-green) on metaphase I chromosomes (labelled in red) of T. dimidiata (a) and T. rubrofasciata (b). In both species, only the heterochromatic Y chromosome appears with strong hybridization signals, while autosomal heterochromatic regions appear label free. Scale-bars: 5 μm