Figure 6.

Transcript accumulation of transcription factors that have clockcontrolling properties. Replicate seedlings from wild-type plants maintained under constant light were harvested every 4 hours. Total RNA was the substrate for RT-PCR of the coding regions of the transcription factors MYB3R2, and bHLH69 and bHLH92. Results are presented as proportional to the average value after normalization with respect to TUB. (A) MYB3R2, (B) bHLH69, and (C) bHLH92.