**3. Conclusions and Future Perspectives**

In recent years, progress has been made in the molecular breeding of broccoli for agronomic traits, secondary metabolites, male sterility, abiotic stress resistance, disease resistance and insect resistance. MAS facilitates the breeding of heat-stress-resistant varieties and clubroot-resistant varieties. However, the molecular breeding of broccoli is still restrained by a lack of basic research and an unknown genetic basis of most desirable traits. Future research on the molecular breeding of broccoli may pay attention to the following aspects.
