Joint PCA of ACpop and the super populations (EUR: European, EAS: East Asian, AFR: African, AMR: Ad Mixed American, SAS: South Asian) of the 1000g project (A). Joint PCA of ACpop and the European populations (FIN: Finnish in Finland, CEU: Utah Residents (CEPH) with Northern and Western European Ancestry, GBR: British in England and Scotland, IBS: Iberian Population in Spain, TSI: Tuscany in Italy) of the 1000g project (B). The proportion of the variance explained by each principal component is indicated in the figure axis titles.