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通过ＭＧＲ５８６探针与经酶解的稻瘟病菌基因组ＤＮＡ杂交，以彼此间ＲＦＬＰ单型带的位置相似率达８０％为度，把采自广东省不同地区的２８个病原菌分离物分簇划分成６个宗谱。被测菌株的ＲＦＬＰ单型的多样性显示我省稻瘟病菌复杂的亲缘关系。初步结果表明，病原菌宗谱与水稻品种的遗传背景有关
The MGR586 probe hybridized with the digested genomic DNA of Magnaporthe grisea to classify the 28 pathogenic isolates collected from different regions of Guangdong into 80% similarity-based RFLP haplotypes 6 genealogy. The diversity of RFLP haplotypes of the tested strains showed the complicated genetic relationship of Magnaporthe grisea in our province. The preliminary results show that the genealogies of pathogens are related to the genetic background of rice varieties