The distribution of the ancestral components between case and control samples was assessed using 224 ancestry informative markers (AIMs) [24], which were SNPs with allele frequency differences (δ) ≥0.4 for pairwise comparisons between HapMap and Zapotecos groups. PDGM-Control: Population controls from the Mexican Genomic Diversity Project; Control-DM: Healthy controls; Case-DM: AMD cases. Eigenvector 1 and 2 are vectors that represent the genetic diversity of the three groups analyzed. To access the data, click or select the words “Appendix 2.”