Fig. 2.

Prr9/prr7 does not rescue the arrhythmicity of CCA1 or LHY expression in the elf3 background. The expression of a) CCA1 or b) LHY in WT (Col-0), the elf3, prr, and elf3/prr mutant backgrounds under constant light and constant temperature of 22°C. Seedlings were prior entrained under 12:12 light–dark cycles with a set temperature of 22°C for 8 days. Data are the mean of 3 technical replicas; error bars represent standard error. All experiments were repeated twice, with similar results observed each time. IPP2 was used as a normalization control. White or gray bars represent subjective day and subjective night.