DiagHunter output. (a) Internal duplications within portions of Arabidopsis chromosome 1. (b) A comparison of predicted genes in portions of the mouse and human X chromosomes (mouse on the horizontal axis and human on the vertical axis). Numbers are assigned by DiagHunter in the order in which synteny blocks are identified. Note that the mouse/human window dimensions are approximately 12 times those shown in the Arabidopsis comparison.