Genome-wide map of intrachromosomal linkage disequilibrium in barley evaluated with 48 SSR loci. Each cell represents r2-values for intrachromosomal loci pairs. The loci are arranged on the X- and Y-axis according to their mapping position, the order is the same as in the Table 2. White cells indicate r2 < 0.05. Coloured cells indicate r2 > 0.05 for the worldwide population (red), European 2-rowed spring barleys (green), and common between the two populations (blue). A yellow frame indicates r2 > 0.1.