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[Objective] This study aimed to investigate the genetic variation of Yunnan Exserohilum turcicum isolates from molecular level,and provide theoretical basis for E. turcicum pathogenicity virulence differentiation and effective control of disease.[Method] A total of 56 E. turcicum isolates from some areas of Yunnan Province were analyzed by RAPD. Based on the genetic distance,a dendrogram was constructed.[Result] Ten genetic groups were formed in the dendrogram. The RAPD groups had no obvious correlation with geographic origins. Some strains from one area were closely related to some from another area.[Conclusion] Rich genetic variation existed among the tested isolates.
[Objective] This study aimed to investigate the genetic variation of Yunnan Exserohilum turcicum isolates from molecular level, and provide a theoretical basis for E. turcicum pathogenicity virulence differentiation and effective control of disease. [Method] A total of 56 E. turcicum isolates from some Areas of Yunnan Province were analyzed by RAPD. Based on the genetic distance, a dendrogram was constructed. [Result] Ten genetic groups were formed in the dendrogram. related to some from another area. [Conclusion] Rich genetic variation was among the tested isolates.