(A) MDS based on IBS values obtained from different Native American populations from South America. (B) Interpolated FST values between Peruvian and other Native American samples. (C) Admixture analysis for the best cross validation value K = 2, showing the admixture components shared between different populations from South America. (E-T) Equatorial-Tucanoan, (C-P) Chibchan-Paezan. (D) D-statistics computed to formally test for admixture between West-Andean and East-Andean populations. (E) Time of the main admixture event occurring in the Diaguita between an ancestral component from Equatorial-Tucanoan (green) populations located to the east of the Andes and Peruvian variation (red).
