Fig. 2. Representative sof mutants characterization with M3 seeds.
A: Seedling survival phenotype of putative sof mutants with M3 seeds plated on MS plates and MS plates supplied with 10 μmol/L DEX. Scale bar, 5 mm. B: Immunoblot analysis with anti-FREE1 antibody. FREE1 protein level was not changed in sof18 and sof30 with DEX, showing that they are RNAi-related mutants. Reduced FREE1 protein level was detected in sof220 and sof641 mutants, showing that they are FREE1-related mutants. Antibodies against the protein cFBPase served as loading control.