Fig. 3
The left image shows the principal component analysis and k-means clustering analysis. The right images show the optimal k for k-means analysis (top right) and SNP FST histogram for the statistically significant microgeographic informative SNPs (bottom right). For the optimal k plot, the blue line with dots represents the TWSS for the k-th value (left axis) and the red bars represent the difference (in percentage) between the TWSS for the k-th value and (k - 1)-th value (right axis). Abbreviations: SNP, Single nucleotide; TWSS, total within sum of squares polymorphism