DNA binding proteins exhibit a burst of expression at dawn. (A) The gene expression pattern of DNA binding proteins in ethylene (i), ABA (ii) , stress (iii), and light (iv) were clustered based on their expression in 8 time points under short day conditions in Col-0 at 22oC. The time point right before dawn (ZT0) and an hour after dawn (ZT1) are highlighted for clarity.  Similar figures for 'auxin', 'circadian clock' and 'all DNA binding' are found in Fig S1.  (B) DNA-binding proteins whose genes have maximal expression at ZT0 (right before dawn) or ZT1 (an hour after dawn) in Col-0 at 22oC were identified, based on the analysis in (A).  We compare the expression levels of these genes in phyABCDE backgrounds compared to Ler (the background strain for phyABCDE).  Similar figures comparing elf3-1 and Col-0 are found in Fig S2.