Mutagenesis is an important tool for breeding and genomic research. In this study, the germinated seeds isolated microspores of a double haploid line ‘FT’ were treated with EMS, respectively, aim comparing effects two approaches on generating mutants in Chinese cabbage. For microspore EMS mutagenesis, 0.12% 20 min, total 1268 plantlets obtained, 15 M1 screened mutation frequency 1.2%. seed 7800...