Figure 1.

Sub-continental Diversity and Origins of African, European, and Native American Components of Recently Admixed American Populations

(A) ADMIXTURE analysis at K = 3 focusing on admixed Americas samples, with the NAT,⁶⁹ CEU, and YRI as reference populations.

(B, D, and F) Local ancestry karyograms for representative PEL individual HG01893 with (B) African, (D) European, and (F) Native American components shown.

(C, E, and G) Ancestry-specific PCA applied to admixed haploid genomes as well as ancestrally homogeneous continental reference populations from 1000 Genomes (where possible) for (C) African tracts, (E) European tracts, and (G) Native American tracts. A small number of admixed samples that constituted major outliers from the ancestry-specific PCA analysis were removed, including (C) one ASW sample (NA20314) and (E) eight samples, including three ACB, two ASW, one PEL, and two PUR samples.