Figure 3
From: Copy number variation signature to predict human ancestry
Principal Component Analysis (PCA) using caCNVs Clusters Samples by Ancestry. For each individual, the sum of log2ratios of the caCNVs identified using pair-wise analyses were calculated and used for PCA analyses. Scatter plots of the first two principal components of A) the 36 caCNVs comparing CEU versus YRI populations, B) the 36 caCNVs comparing CEU versus CHB populations, and C) the 20 caCNVs comparing YRI versus CHB populations shows good separation of individuals based on ancestry (red squares: CEU; yellow triangle: YRI; blue circle: CHB).