Figure 4
From: Genetic incompatibility drives mate choice in a parasitic wasp

Flow cytometry reference histograms. Since DNA duplication is common in Hymenoptera, a haploid individual (right side) is recognized by the presence of a haploid peak, in addition to diploid and tetraploid peaks. A diploid individual is defined by the absence of a haploid peak, while at the same time, diploid and tetraploid peaks are present (left side).