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Fig. 2. MYB23 and GL1 proteins are functionally equivalent during trichome
initiation. (A) Redundant function of MYB23 and GL1 during
trichome initiation. Trichomes at the leaf edges and petioles present in
gl1 are absent in the gl1 myb23-2 double mutant. (B)
Cis-regulatory sequences, but not protein-coding regions, specify the
functions of the MYB23 and GL1 genes in trichome initiation.
Schematic presentations of the constructs used for rescue experiment are
depicted on the left. Nucleotide numbers indicate the length of the used
5' and 3' flanking sequences before the start and after the stop
codon respectively. Phenotypes of the gl1 mutant and gl1
myb23-2 double mutant transformed with the corresponding construct are
shown on the right.