Fig. 1

Phenotypic characterization of the short- and long-silique rapeseed. a Silique length of different lines. The line of Z number is from RIL population, and the line of R number is from GWAS population. Bar = 1 cm. b Dynamic changes of silique lengths of S- and L-siliques in different developmental stages. c, d Microstructure observation of the outer pericarp of the S-silique materials and L-silique materials, bar = 100 μm. e, f Microstructure observation of the endocarp of the S-silique materials and L-silique materials, bar = 200 μm. g Cell length measurement of outer pericarp. h Cell width measurement of outer pericarp. i Cell length measurement of endocarp. j Cell width measurement of endocarp. Statistically significant differences were revealed using a Student’s t test: *p < 0.05; **p < 0.01, ***p < 0.001