Figure 1

Five orthologous regions analyzed. Each maize region is represented by two homoeologous sequences depicting the whole-genome duplication event. Both rice and sorghum have one chromosomal sequence aligned. Each number on top of the line is the chromosome number. However, the chromosome number for sorghum is unknown. Blue, green, and purple lines represent rice, maize, and sorghum, respectively. A more detailed annotation of these regions with sequence coordinates have been published previously [31].