Figure 2

Chromosome painting with the Hm-X1 (green) and Ee-Y (red) probes. The probes hybridized to the female and male metaphase chromosomes in Erythrinus erythrinus (EER) karyomorphs A (2n = 54, both sexes) and D (2n = 52/51, X₁X₁X₂X₂/X₁X₂Y). Note that the Ee-Y probe hybridized to four acrocentric chromosomes in EER karyomorph A, as well as the X₁, X₂ and Y chromosomes in EER karyomorph D. The HMA derived Hm-X1 probe hybridized to a distinct autosomal pair in EER. Scale bar = 5 μm.