Fig. 10. Me(3)K20H4 is present only at the paternal chromosomes of male mealy bugs. Prometaphase male mealy bug cells stained with DAPI (A) and anti-Me(3)K20H4 (B). (C) Merged image of A and B. Me(3)K20H4 (green) has a punctate appearance and is distributed through the paternal chromosome set, which stains intensely with DAPI (pseudocoloured in red). Scale bar: 5 µm.