玉米丝黑穗病是春玉米生产中的主要病害之一,在世界范围内普遍发生。利用前期研究获得的主效QTL,采用分子标记辅助选择与常规育种技术相结合方法,成功地把抗病基因区段导入到10个玉米骨干自交系中,获得一批抗病自交系。利用这些抗病自交系组配的杂交种,使玉米丝黑穗病的抗性得到大幅度提高。 Corn smut is one of the main diseases in spring maize production, and it is common in the world. Based on the major QTLs obtained in the previous studies, the resistance gene segments were successfully introduced into 10 maize inbred lines using molecular marker-assisted selection and conventional breeding techniques to obtain a number of disease-resistant inbred lines. The resistance of maize head smut has been greatly improved by using the hybrids with these resistant inbred lines.