Fig. 1. Differential expression of cell cycle regulatory genes in Arabidopsis csn mutants. (A) Phenotypes of 7-day-old wild-type and csn mutant alleles used in this study. Scale bars: 2 mm for wild type, csn5a and csn5b; 0.5 mm for csn3, csn4 and csn5ab. (B) Differential expression of cell cycle regulatory genes in 7-day-old dark- and light-grown wild-type and csn3, csn4 and csn5 seedlings (Benjamini Hochberg false discovery rate <0.05, 2-fold differential expression in all three csn mutants and in both growth conditions; see also Table S1 in the supplementary material).