Figure 3.

Orthologous Relationships and Shared Duplications between the Rice, Maize, Wheat, and Sorghum Genomes.

Colinear wheat, rice, sorghum, and maize chromosomes are displayed on the same line in the figure. Duplications are indicated with solid lines. The five blocks of shared duplications identified in the four genomes are displayed on the right side of the ancestral chromosomes (A5, A7, A11, A8, and A4) that they define. The artefactual syntenic relationship identified between w5 and r3 that reflects the wheat w4-w5 translocation is indicated in parentheses. The two duplications shared between wheat and rice chromosomes that do not share a common ancestry (w1-r10/w2-r7 and w7-r6/w2-r4) but are found on orthologous chromosomes in both species are indicated with double arrows.