Principal components analysis (PC1 versus PC3) of 1,312 Ashkenazi Jewish (AJ) subjects combined with Europeans (EU), Middle Easterners (ME), and Central/South Asians (CSA). The x-axis represents the eigenvalue (EV) for principal component 1 (PC1) and the y-axis represents the eigenvalue for principal component 3 (PC3). Blue represents AJ, green represents EU, orange represents ME and black represents CSA.
Guha et al. Genome Biology 2012 13:R2 doi:10.1186/gb-2012-13-1-r2