Comparison of plant height, root length, tiller number, and leaf area between Osatg7-1 mutants and control plants. The size of Osatg7-1 was reduced throughout the plant body. Plants were sampled at 77 d after germination, and plant height (A), root length (B), tiller number (C), and leaf area (D) were measured. Data are means ± sd (n = 8). Different letters denote significant differences in the parameter analyzed by Tukey’s honestly significant difference test (α = 0.05).