Fig. 1.

Characterization of the phyB-null mutant. a Schematic representation of the conserved functional domains of the PHYB protein and selected phyB-A and phyB-B TILLING mutants. b Flowering time of phyB-null mutant plants under LD photoperiod. Data represent the mean of at least five plants (*** P < 0.001). c Wild type and phyB-null mutant plants 60-days after sowing. d Stem length at 60 days. Individual internodes are indicated by different shades. White bars indicate the oldest internode and black bars the youngest internode. e Detail of a tiller from a phyB-null mutant plant 60-days after sowing showing elongated internodes (red arrows). Bar = 10 cm