Figure 3

Neighbor-joining tree of 196 spring wheat genotyped with 28,798 polymorphic SNPs. The plots are based on predicted group membership from STRUCTURE at K = 2, K = 3, and K = 4. Genotypes belonging to the same group are shown with the same font—Group-1 (blue), group-2 (red), group-3 (green), group-4 (purple), and mixed (yellow).