Morphology of mutants. a Phenotype of 10-day-old plants. From left to right, Col-0, heterozygous and homozygous mutant. Scale bar: 5 cm. b Phenotype of 25-day-old plants. From left to right, Col-0, heterozygous and homozygous mutant. Decreased plant height and increased axillary branches are displayed in the heterozygous mutant. The homozygous mutant displays no inflorescence and abnormal flowers. Scale bar: 5 cm. c The phenotype of the homozygous mutant during different growth stages. From left to right, 10, 20, 30, and 40-day-old plants. Scale bar: 2 cm. d The phenotype of the heterozygous mutant during different growth stages. Each panel shows a 20-day-old plant (first panel), 25-day-old plant (second panel), 30-day-old plant (third panel), and multiple axillary inflorescences of the 35-day-old plant (fourth panel). Scale bar 2 cm for the first to third panel and 1 cm for the fourth panel