Q = estimated membership coefficients (posterior probability) for each individual in each cluster
K =  clusters derived from genetic similarities
POP = pre-defined populations (geographic)

Summary plot of estimates of Q. Each individual is represented by a single vertical line broken into K colored segments, with lengths proportional to each of the K inferred clusters. The numbers (1..4) correspond to the predeÞned populations.
SNP Analysis using Structure 2.2