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.
Cioffi et al. BMC Evolutionary Biology 2011 11:186 doi:10.1186/1471-2148-11-186