Supplemental Data

Files in this Data Supplement:

• Supplemental Figure 1 - Alignment of Arabidopsis GAI with maize, wheat and barley orthologues (A) and Transgenic GAI:gai plants mimic the gai-1 gain-of-function mutant phenotype (B).
• Supplemental Figure 2 - Anti-GAI and anti-RGA antibodies specifically recognize the respective DELLA protein.
• Supplemental Figure 3 - Mutants expressing stabilized GAI variants are GA-insensitive.
• Supplemental Figure 4 - The growth of ga1 GA biosynthesis mutants but not that of the gid1 triple mutants can be normalized by GA treatment.
• Supplemental Table 1 - List of genes that are repressed or induced by 100 μM GA3 treatment (1 hour) in a ga1 allele (SALK_109115, Columbia ecotype) and their expression in the gid1a-c triple mutant.