Figure 2.

(a) PCA analysis using POPRES/LPZ merge. Circled position indicates median coordinate value for Sorbs. (b) Same as a, except using POPRES/HGDP merge. (c) Bootstrap analysis via median coordinate values of POPRES/LPZ merge based on sample's country of origin. (d) Same as c, except using POPRES/HGDP merge. PCA1 is on y axis and PCA2 is on x axis for all plots. For (a, b) an appending asterisk indicates that this individual (and sample median position) is from the Leipzig data set. For (c, d) an appending asterisk indicates that this individual (and sample median position) is from the HGDP data set.