The proportion of chromosome pairs (Density y axis) is graphed with respect to the degree of territory overlap (% overlap), calculated as the fraction of voxels in the overlap region divided by the total voxels for both territories ( x axis). Territory regions were calculated from the N2 and HI probes. N2 and HI chromosomes from crosses between N2 m and HI p in different age groups of embryos indicated by color-coding. The % overlap is defined as the ratio between voxels of overlapping N2 and HI marker signal, and total number of voxels defining the N2 territory and HI territory.
