水稻抗稻瘟病分子育种的现状及展望

Present Status and Prospect of Molecular Breeding for Blast Resistance

稻瘟病是世界水稻产区最主要的病害。目前除了传统的抗稻瘟病育种外还大规模开展抗性基因的分子育种研究。本文综述了国内外利用已克隆的稻瘟病抗性基因以及各种外源基因进行转基因育种,稻瘟病抗性基因的分子标记筛选及辅助选择育种研究进展。同时,根据我国目前抗瘟育种的现状及所面临的问题提出新策略。

Blast is one of the most devastating rice disease. In the present review, in addition to use conventional breeding method, molecular breeding strategy is also extensively used to improve rice resistance to blast in the world. Now transgenic strategy using both blast resistance development genes and foreign genes, and molecular marker assisted selection to improve blast resistance were presented. Some breeding strategies to improve blast resistance are suggested based on present status of breeding.