Identification of GAMYB-like regulated genes in the seed. A and B, Visualization of MYB33:GUS expression (pink crystals) in the seed (A) and aleurone (B) with dark-field optics. C, Fold changes in mRNA levels of the GA-responsive genes CP1, GASA1, BXL1, BXL2, and CP in myb33.myb65, myb101, and myb33.myb65.myb101 mutants as determined by qRT-PCR. D, Genomic structure of the myb101 allele (SALK_061355). The conserved R2R3 MYB domain (R2R3) is represented in the gene. E, MYB101 mRNA levels in myb101 mutant seeds. F to H, mRNA levels of MYB33, MYB65, and MYB101 in wild-type Columbia-0 (Col-0) and ga1-3 seeds treated with GA. Error bars represent sd.