Figure 1

Dissecting light and carbon signaling interactions in Arabidopsis thaliana. From microarray data derived from carbon- and light-treated Arabidopsis plants, the Coruzzi group [2] defined InterAct classes as sets of genes that have similar expression profiles in response to light and/or a carbon source. The proportions of genes (for which there were sufficient data) that were regulated in each possible way by carbon and light are shown. One InterAct class (111), in which both carbon and light have the same effect whether separately or in combination, was used to define putative DNA cis elements involved in responding to light or carbon.