Decay of LD over distance. SNP pairs were partitioned into bins at 5-kb intervals; for each bin number, SNP pairs with r2 > 0.8 (A) and D′ > 0.8 (B) were plotted. Each group has 48 individuals to eliminate possible effects of sample size. The populations shown are European (French, Italian, Tuscan, and Sardinian), Middle Eastern (Druze and Palestinian), Central Asian (Hazara, Uygur, and Kyrgyz), South Asian (Balochi, Brahui, Burusho, Makrani, Pathan, and Sindhi), Northeast Asian (Mongola, Tu, Oroqen, Xibo, Daur, and Hezhen), native American (Colombian, Surui, Karitiana, Maya, and Pima), and African (Bantu, Biaka Pygmy, Mbuti Pygmy, Mandenka, Yoruba, and San).