Fig. 3: PIF4a overexpression suppresses FT2 transcription.
From: Phytochrome B and phytochrome-interacting-factor4 modulate tree seasonal growth in cold environments
a Plants grafted with WT and PIF4a-YFP OE3 scions onto WT rootstocks. The arrows indicate the grafting positions. b Bud set scores of WT and PIF4a-YFP OE3 grafted plants in 15 °C LD. Shoot apices, 40 days after grafting, are shown in the right panel. The dotted line marked bud set score 2, which indicates the stage of growth cessation. c Diurnal expression of FT2a (left) and FT2b (right) in leaves of WT and PIF4A-YFP OE3 scions grown for 21 days in 15 °C LD. Data are presented as mean ± SEM (n = 30 for b; n = 3 for c). The asterisks represent significance levels (*p < 0.05, **p < 0.01) based on Fisher’s LSD test (two-sided) without multiple testing correction following ANOVA. See also Supplementary Fig. 3. Source data are provided as a Source Data file.
