A consensus map of sorghum derived from six component maps. Marker type is indicated by colour; DArT (black), SSR/STS (red), RFLP (green) and gene (blue). Bridge markers are underlined; attached markers are in italics and multicopy markers have an * suffix. The bar on the left hand side shows the distance in centiMorgans from the top of each chromosome. Heterochromatic regions are indicated by a bar to the left of each chromosome.