Fig. 9

Oat-like rice phenotypes and statistics of OsMADS1-RNAi plants. a Grain shape and phenotypes of severe OsMADS1-RNAi plants (Ri-2, Ri-4 and Ri-12) with similar Oat-like rice phenotypes in comparison with grains of wild-type plant (NIP). Arrowheads indicate conjugated twin brown rice. b Relative expression of OsMADS1 in matures spikelets and 12 DAF grains of wild-type and severe OsMADS1-RNAi plants. c Seed setting rate of wild-type and severe OsMADS1-RNAi plants. d Comparison of grain length, grain width, grain thickness, brown rice length, brown rice width, brown rice thickness, lemma length, palea length, lemma width and palea width between wild-type and severe OsMADS1-RNAi plants. e-h Comparison of grain length-to-width ratio (e), brown rice length-to-width ratio (f), 1000-grain weigh (g) and 1000-brown rice weight (h) between wild-type and severe OsMADS1-RNAi plants. Bar: (a) 5 mm. Data presented are mean values ± SDs [n = 3 repeats in b, g and h; n = 12 repeats in c; n = 50 in d-f.]. Student’s t-test: *p < 0.05, **p < 0.01, ***p < 0.001