Figure 2.

Structure of the conserved CslF gene cluster in the grasses. These clusters are conserved in syntenic regions of grass genomes (Fig. 1B) but include variable numbers of genes in different orientations. Chr indicates the chromosome number for the particular species. In some cases, relatively recent duplications are evident, through much higher values for sequence identity. The orientations of the genes are indicated by the arrows, and recently duplicated genes (sequence identity of about 90% or more) are shown in the same color in a particular species. No pseudogenes were detected in the clusters.