Extended Data Fig. 8: Natural allelic variation at GRF4 is associated with variation in plant and grain morphology and grain yield performance.
From: Modulating plant growth–metabolism coordination for sustainable agriculture

a, DNA polymorphisms in the promoter region of GRF4. Green-shaded regions indicate the three unique SNP variations associated with phenotypic variation in NM73 and RD23. b–f, Box plots for plant height (b), grain length (c), grain width (d), the number of grains per panicle (e) and grain yield performance (f) of rice varieties carrying different GRF4 promoter haplotypes (Hap. A, B or C). All data are from plants grown under normal paddy-field fertilization conditions22. Data are mean ± s.e.m. (Hap. A, n = 74; Hap. B, n = 28; Hap. C, n = 123). The violin plot was constructed in R. b–f, Different letters indicate statistically significant differences between groups (P < 0.05) from a Tukey’s honestly significant difference (HSD) test.