Figure 2.

Haplotypic analysis of 126 imputed ancient Asian individuals

(A) Principal component analysis based on a matrix of identity-by-descent (IBD) sharing between all pairs of imputed ancient individuals. Different colors show different geographic or cultural backgrounds.

(B) ROH profiles stratified by their total lengths of short (<1.6 Mb) and long (>1.6 Mb) fragments. Individuals with the coverage <0.5 $\times$ in their original data (i.e., pre-imputed data) are excluded due to insufficient numbers of imputed sites available for this analysis.