This review introduces the study advances on geneti cs and molecular bi ology and the reliability of the relationship between lineage based on DNA finge rprinting and virulence of the fungus.

• 系统地综述了水稻稻瘟病菌遗传与分子生物学方面的研究进展，并介绍了DNA指纹分析的宗亲群与毒性关系的可靠性。