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类番茄茄(Solanum lycopersicoides)高抗黄瓜花叶病毒(Cucumber mosaic virus,CMV)。通过4次独立试验,对来自类番茄茄LA2951的渐渗系(Introgression Line,IL)采用摩擦接种法,人工接种CMV亚组Ⅱ进行了筛选,定位了8个抗CMV的QTL,它们分别位于番茄第2、7、8、9、10、11和12染色体上,均可显著降低植株的病情指数,与前人已鉴定的来自多毛番茄(S.habrochaites)LA1777和智利番茄(S.chilense)LA0458的抗CMV位点不同位,为抗CMV新位点。通过对抗CMV的IL初步分析发现,这些IL包含的QTL呈现不完全显性遗传效应,QTL聚合为完全加性效应。
Solanum lycopersicoides is highly resistant to Cucumber mosaic virus (CMV). Through 4 independent experiments, the introgression line (IL) from tomato tomato LA2951 was screened by the method of frictional inoculation and artificial inoculation with CMV subgroup Ⅱ. Eight QTLs against CMV were located in tomato On the 2nd, 7th, 8th, 9th, 10th, 11th and 12th chromosomes, the disease index of the plants was significantly decreased, which was similar to those of the previously identified S. habrochaites LA1777 and S. chilense LA0458 Of the anti-CMV sites in different positions, anti-CMV new site. Preliminary analysis of the ILs against CMV showed that the QTLs contained in these ILs showed an incomplete dominant genetic effect and the QTL aggregated into a fully additive effect.