Figure 2. Multi-dimensional scaling (in two dimensions) of pair-wise relatedness between all individuals.

Individual grasshoppers are colour-coded by population: viatica17-east (light red), viatica17-south (dark red), viatica19 (green), P24(XY)-east (dark blue), P24(XY)-north (light blue). Open symbols represent individuals with hybrid genotypes, defined from STRUCTURE runs. Chromosomal races and populations of chromosomal race are identifiable as distinct clusters, and hybrids between P24(XY)-east and viatica17-east tend to lie in between their parental population clusters.