Fig. 1. Phenotypes of the tn1 mutant.

a–c Morphology of YZ4110 and the tn1 mutant at the third-leaf stage (a), jointing stage (b), and grain-filling stage (c). The red arrow in a indicates the position of the tiller bud. Scale bars, 2.5 cm in a, 15 cm in b and c. d, e Tiller number in YZ4110 and tn1 at the jointing stage (d) and grain-filling stage (e). Data are means ± SD (n = 30 biologically independent samples), and p values are indicated by two-tailed unpaired t-test. The two whiskers of the box plot and the middle, upper, and lower box lines represent the maximum, minimum, median and two quartiles of values in each group. f Micrograph of tiller buds at the third-leaf stage in YZ4110 and tn1. Red arrows indicate the positions of tiller buds. Scale bar, 1 cm. g Microscopy observations of longitudinal sections of the axillary buds. Images are representative of two independent experiments. Black arrows indicate the positions of axillary buds. T₀–T₃ represent the axillary buds that arose from the coleoptile and the first-, second-, and third-leaf axils, respectively. Scale bars, 0.5 mm. Source data are provided as a Source Data file.