Factor Correspondence Analysis Comparing Different Individuals from European Ancestry Groups. The analysis was performed using 749
single nucleotide polymorphisms (SNPs) informative for European substructure (selected from a genome-wide panel of more than 5700 SNPs).
Photo credit: Seldin MF, Shigeta R, Villoslada P, Selmi C, Tuomilehto J, et al. (2006) European Population Substructure: Clustering of Northern and Southern Populations. PLoS Genet 2(9): e143 Fig. 4(b)