水稻稻瘟病抗性基因座PizPik的探秘之旅

    Exploration of the Rice Blast Resistance Gene Loci Piz and Pik in Rice

    • 摘要: 由稻瘟病菌Magnaporthe oryzae引起的稻瘟病是我国乃至世界水稻生产上的重要病害。目前生产上主要有栽培管理、化学药剂和选用抗病品种等防治方法,其中利用抗病基因培育抗病品种已被证实为最经济有效和环境友好的选择。回顾了本课题组在过去10多年利用分子生物学和多组学等研究技术,在抗性基因筛选、鉴定和应用以及抗病机制解析方面的工作。另外,还综述了近年来关于水稻抗性基因和稻瘟病菌无毒基因方面的研究进展,以及与抗病基因Piz-t相关的物质和代谢途径,如五羟色胺和色氨酸途径等。这些信息有望为水稻分子设计抗病育种提供参考。

       

      Abstract: The rice blast, caused by Magnaporthe oryzae, is a main disease on rice production in China and even in the world. At present, the control methods including the cultivation management, chemical agents and the selection of disease-resistant varieties were mainly used in production to prevent and control the rice blast. Among them, the breeding of the disease-resistant varieties with disease-resistant genes has been proved to be the most economical effective and environmentally friendly choice. In this paper, the research work of our team in the screening, identification and application of resistance genes and the analysis of resistance mechanisms by using the techniques such as molecular biology and multi-omics analysis in the past 10 years were reviewed. In addition, the research progress of rice resistance genes and the avirulence genes of Magnaporthe oryzae in recent years were summarized, as well as the substances and metabolic pathways related to the resistance gene Piz-t, such as 5-hydroxytryptamine and tryptophan pathway. These information would be expected to provide reference for the molecular design of the disease-resistant breading in rice.

       

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