 

ABOUT THIS IMAGE. This image shows the maximal value of the r^{2} statistic for linkage disequilibrium as a function of allele frequencies at two biallelic loci. The plot has symmetries corresponding to interchanging the alleles at a locus, or interchanging the two loci. The maximum drops quickly as frequencies at the two loci diverge from each other. The figure is taken from the work of VanLiere & Rosenberg (Mathematical properties of the r^{2} measure of linkage disequilibrium; Theoretical Population Biology 74: 130137, 2008). 