Fig. 1.

Continental admixture and kinship analysis of the EPIGEN Brazil populations. (A) Kinship coefficient for each pair of individuals and the probability that they share zero identity by descent (IBD) alleles (IBD = 0). Horizontal lines represent a kinship coefficient threshold used to consider individuals as relatives. (B) Brazilian regions, the studied populations, and their continental individual ancestry bar plots. N represents the numbers of EPIGEN individuals in the Original Dataset (including relatives; detailed in SI Appendix, section 6). (C) PCA representation, including worldwide populations and the EPIGEN populations, using only unrelated individuals (Dataset U; explained in SI Appendix, section 6). The three graphics derive from the same analysis and are different only for the plotting of the EPIGEN individuals. AP, admixed population; ASW, Americans of African ancestry in USA; CEU, Utah residents with Northern and Western European ancestry; CLM, Colombians from Medellin, Colombia; EAFR, east Africa; FIN, Finnish in Finland; French B, Basque; GBR, British in England and Scotland; IBS, Iberian population in Spain; LWK, Luhya in Webuye, Kenya; ME, Middle East; MXL/MEX, Mexican ancestry from Los Angeles; N., (North) Italian; NAT, Native American; NE, northeast; NEUR, north Europe; PC, principal component; PUR, Puerto Ricans from Puerto Rico; S, south; SE, southeast; SEUR, south Europe; TSI, Toscani in Italia; YRI, Yoruba in Ibadan, Nigeira; WAFR, west Africa.