Additional file 4: Figure s3. LEA results support that overall population structure is indicative of weak differentiation. (A) LEA cross-entropy across K=1 to K=30. There is a break in the cross-entropy values at K=16 which is equal to the number of individuals in this study. Cross-entropy was lowest at K = 1. (B) LEA sparse nonnegative matrix factorization predicted ancestry proportions for K=1 to K=4.