In recent years trying to decipher the mechanisms of circadian clock function. Genetic and molecular research on Arabidopsis thaliana were used to identify components of the clock and regulatory mechanisms in the circadian oscillator. Initially proposed a reciprocal regulation between transcription factors CCA1 (circadian clock associated) and LHY (late elongated hypocotyl) with the regulator TOC1 (timing of cab expression 1). (more...)