关键词: 十字花科, 霜霉病, 病原菌, 抗性机制, 防治, 分子设计育种

Abstract: In order to systematically and effectively prevent downy mildew in cruciferous vegetables, this study summarized previous studies, including the research progress of pathogenic bacteria (origin and distribution, characteristics and types of downy mildew, genome sequencing, harmful symptoms, transmission route). Research progress in the resistance of cruciferous vegetables to downy mildew (resistance source screening, resistance gene mapping, molecular marker development, resistance mechanism), research progress in the control of downy mildew of cruciferous vegetable crops (resistant variety selection, cultivation technology, chemical control, biological control, intelligent control), and future research prospects for the resistance of cruciferous crops to downy mildew.

Key words: Brassicaceae, downy mildew, pathogenic bacteria, resistance mechanism, prevention and control, molecular design breeding