Figure 6

The pcfs4 mutation affects the period and amplitude of expression of TOC1 and CCA1. Col and pcfs4-1 seedlings were entrained to photocycles (Light/Dark: 12/12 h) for 10 days before release into constant light. Transcript abundance (mean ± stdev) was estimated by qPCR and normalized to ubiquitin (UBQ10) expression. White and gray bars indicate subjective day and night, respectively.