DAPC by adegenet.

The results of the DAPC are shown. The X- and Y- axes indicate the 1st and 2nd principal component of DAPC, respectively. The right and left insets show scree plots of PCA and DA eigenvalues, respectively. The labels and individual points for airport samples in Japan are drawn in black. First, we conducted clustering using whole genotype data altogether with airport samples in Japan (A). Next, out-of-African genotypes together with airport samples in Japan were clustered. (B). Finally, Asia/Pacific genotypes along with airport samples in Japan were clustered (C).