Figure 2: Genetic distance and linkage disequilibrium.
From: Genotype, haplotype and copy-number variation in worldwide human populations
a, FST genetic distance as a function of land-based geographic distance from East Africa. b, LD as a function of physical distance. kb, kilobases. c, LD as a function of geographic distance from East Africa. Error bars (smaller than symbol size) represent the mean ± 1.96 times the s.e.m. d, Correlation of population rank orders by LD, comparing HR2 applied to unphased data and r2 applied to phased data. LD calculations are adjusted for sample size differences across populations by sampling five random individuals (HR2) or ten random haplotypes (r2) per population at each SNP pair.
