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Figure 4


Fig. 4. Phenotype of the phmyb1 mutant from Petunia hybrida. (A) Petals show darker revertant sectors (white arrow) distinguishable from a paler background of mutant cells. (B) Micrographs of the inner epidermis of an unstable phmyb1 line showing a revertant sector (the boxed region in A). Mutant cells and wild-type revertant cells have different shapes. Scale bar: 100 µm.