Fig. 2From: Size and sequence polymorphisms in the glutamate-rich protein gene of the human malaria parasite Plasmodium falciparum in ThailandLinkage disequilibrium (LD) across the R2 region of the GLURP gene of P. falciparum calculated using the R2(a) and D’ indices (b). Red circles represent those pairs of sites that show significant linkage disequilibrium, as calculated by Fisher’s exact test, while all others are shown by black circles. Trace line shows the regression lineBack to article page