Fig. 1

Phenotypes of the dvb1 mutant and wild type. a, b Plants of the wild type (a) and the dvb1 mutant (b) at maturity. c, d Panicle and internodes of the wild type (c) and dvb1 (d). e–g Plant height (e), panicle and internode lengths (f), and diameter (g) in the wild type and the dvb1 mutant. h, i Scanning electron micrographs of the inner sheath surface in the wild type (h) and the dvb1 mutant (i). ‘P’ indicates the panicle and ‘I-VI’ indicate the internodes sequentially from the stem apex to the stem base. Values represent means ± SD from 10 biological samples. Asterisks indicate the significance of differences between the wild type and dvb1 as determined by Student’s t-test (*, 0.01 ≤ P < 0.05; **, P < 0.01). Scale bars: 15 cm (a, b), 5 cm (c, d), 100 μm (h, i)