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茄子对青枯病的抗性遗传分析
Genetic analysis of resistance to bacteria wilt in eggplant (Solanum melongena)
【摘要】 为探讨茄子青枯病抗性的遗传,试验选取7个对青枯病抗性差异显著的材料,采用G riffing的双列杂交设计方案配制杂交组合,利用苗期人工接种青枯病病原菌方法测定亲本及F1组合青枯病发病率。经统计分析表明:茄子青枯病抗性遗传不符合"加性-显性"遗传模型,存在着非等位基因间的上位作用;茄子青枯病抗性主要受少数隐性基因控制,属隐性遗传。
【Abstract】 The genetic parameters of resistance to bacterial wilt in eggplant were estimated by analyzing the appearance of resistance among 49 hybrids derived from the crosses between 4 resistant parents and 3 susceptible ones with complete diallel mating design.The results showed that the heredity of resistance was not correspondent with the additive-dominant model,and the resistance was controlled by a few recessive genes as well as influenced by epitasis effect.
【关键词】 茄子;
青枯病;
抗性遗传分析;
【Key words】 Solanum melongena; bacterial wilt; genetic analysis of resistance;
【Key words】 Solanum melongena; bacterial wilt; genetic analysis of resistance;
【基金】 “农业部蔬菜遗传与生理重点开放实验室”资助项目
- 【文献出处】 西南农业学报 ,Southwest China Journal of Agricultural Sciences , 编辑部邮箱 ,2007年04期
- 【分类号】S641.1
- 【被引频次】17
- 【下载频次】250