关键词: 番茄疮痂病, 小种变异, 抗性遗传, 分子标记辅助选择

Abstract: Bacterial spot is one of the most important bacterial diseases in tomato growing areas in the world. It causes severe yield and fruit quality losses, and thus has been receiving breeding attention for decades. Due to the existence of multiple species and races, and the quantitative inheritance of resistance, breeding for resistance to the pathogen has been slow. Marker-assisted selection provides breeders a tool to screen resistance to multiple races and to combine or pyramid multiple resistances into one variety or hybrid. Previous reviews provide detailed information about the disease including occurrence, symptoms, damages caused by the disease, integrated managements, the genetics of resistance, and breeding progress up to 1997. Since then, progress has been made to detect new species and races of the pathogen, discover new resistance sources, and identify molecular markers linked to genes conferring resistance to bacterial spot. The strategy of combining molecular tools with traditional breeding approach is also beginning to demonstrate progress. In this review, we will summarize these progresses and discuss the promise of marker-assisted selection in breeding for resistance to bacterial spot.