Figure 2From: Association analysis of photoperiodic flowering time genes in west and central African sorghum [Sorghum bicolor (L.) Moench]Strength and extent of linkage disequilibrium for genes CRY1-b1 , and GI. Each point in the linkage disequilibrium matrix represents a comparison between a pair of polymorphic sites, with the r2 values displayed above the diagonal, and P values for Fisher's exact test below.Back to article page