论文部分内容阅读
以6个黄瓜品种(系)为试材,以来自山东、辽宁、黑龙江的200个黄瓜棒孢叶斑病菌为供试菌株,采用苗期接种鉴定及AFLP分子标记技术,研究了黄瓜棒孢叶斑病菌的毒力分化。结果表明:黄瓜棒孢叶斑病菌存在生理小种分化现象,并将200个菌株分为4个生理小种,初步筛选出D0330、D1306、D0649和D2025作为研究黄瓜棒孢叶斑病菌生理小种分化的鉴别寄主备选材料;AFLPs与菌株的地理来源无关,与毒力存在相关性。
Six cucumber cultivars (lines) were used as tested materials, and 200 Cucumber cucumber leaf cucumber cucumbers from Shandong, Liaoning and Heilongjiang were used as tested strains. Seedling inoculation and AFLP molecular markers were used to study the effects of Cucurbit Pathogenic bacteria virulence differentiation. The results showed that there were physiological races of Cucumber leaf spot cucumber pathogen, and 200 strains were divided into four physiological races, D0330, D1306, D0649 and D2025 were initially screened as physiological races Differentiated identification of alternative host material; AFLPs and the geographical origin of the strain has nothing to do with the toxicity is related.