Decay of linkage disequilibrium (LD) over distance. LD was measured by pairwise comparison (A&C, r2 ≥ 0.5; B&D, r2 ≥ 0.8) between markers that had minor allele frequency ≥ 0.05 (A, B), ≥ 0.1 (C, D) and that fell into the same intermarker distance bin. Blue lines denote Mlabri, black lines denote YRI, others include the rest 15 population samples.
Xu et al. BMC Genetics 2010 11:18 doi:10.1186/1471-2156-11-18