OsD1, a gene associated with the development of rice panicle, was edited by the CRISPR/Cas9 genomeediting technology. Four mutant plants with defective genic function of OsD1 were obtained after the construction of site-directed editing vector, the transformation of rice callus, the identification of transgenic plants and the analysis of mutation types in the mutants. Among them, there were two homozygous mutants. The phenotypic analysis revealed that there existed significant deformities in palea and lemma...