Extended Data Fig. 1: CDF1, 2, 3 and 5 function in the same genetic pathway with PIF4 to induce hypocotyl elongation.

CDF1, 2, 3 and 5 function in the same genetic pathway with PIF4 to induce hypocotyl elongation. a, Hypocotyl length of 9-day-old seedlings of wild type, pif4, cdfq and pif4 cdfq in short-day conditions. b, Photographs of 4-day-old dark-grown seedlings. Scale bar = 1 mm. c, Hypocotyl length and d, hook curvature of 4-day-old dark-grown seedlings of WT, pif4, cdfq and pif4 cdfq. e, Length and f, width of cells in the non-dividing cell files of hypocotyls. Box plots in panel a, b, d, e and f show the minimum, 25th percentile, median, 75th percentile and maximum of data points. In a and c, n = 29 and 28 hypocotyls. n = 37 seedling hooks in d and n = 8 cell files examined over four hypocotyls (cell numbers are presented in Fig. 1b) in e and f. Letters a–c in panels a, b and d show significant differences between genotypes (P < 0.05, using one-way ANOVA followed by Tukey test, two sided), P = 1.96*10−28 in a, P = 0.16 in b and P = 0.067 in d.