番茄抗根结线虫Mi-1基因研究进展  

The Progress of Studies on Mi-1 Gene with Resistance to Root-Knot Nematode in Tomato(Solanum lycopersicum)

作　　者：高莹梅 胡靖康 赵婷婷[1] 李景富[1] 

机构地区：[1]东北农业大学园艺学院番茄课题组,哈尔滨150030

出　　处：《分子植物育种》2017年第8期3010-3015,共6页Molecular Plant Breeding

基　　金：黄瓜等主要蔬菜商业化育种技术研究与示范项目(2014BAD01B0802)资助

摘　　要：番茄是重要的栽培蔬菜,在世界各地被大面积种植。根结线虫侵染番茄根部对寄主产生损伤,使植株黄化、矮化、下部叶片脱落、成熟期果实小。同时,常见的土传病害,如黄萎病(Cyanosis)、枯萎病、青枯病(Ralstonia solanacearum)等往往会在遭受线虫侵染后爆发。根结线虫病会严重影响番茄产量,甚至导致绝产。Mi-1做为目前唯一被转育到栽培品种中的番茄抗根结线虫基因,在番茄栽培中起着重要的作用。本研究通过对Mi-1基因结构功能分析,Mi-1基因对根结线虫抗性机理,分子标记与抗根结线虫育种应用等方面的研究进展加以综述,意在总结前人相关研究进展并对其存在的问题及今后发展方向进行展望。Tomato（Solanum lycopersicum） is an important cultivated vegetable grown in large areas around the world. Root-knot nematode infested the root of tomato（Solanum lycopersicum） to damage the host, which caused yellow dwarfing, lower leaves falling off, and fruit ripening period of the plant. At the same time, some common soil-borne diseases, such as greensickness（Cyanosis）, blight, damping-off（Ralstonia solanacearum） and other tended to outbreak after suffering nematode infection. Root-knot nematode disease would seriously affect the tomato yield, and even led to the total loss of crop yields. Mi-1 was the only transgenic tomato root knot nematode resistant gene, that played an important role in tomato cultivation. In this research, through the analysis of the structure and function of Mi-1 gene, the progress of Mi-1 gene resistance mechanism, molecular markers and the application of resistance to root knot nematode were reviewed to summarize the progress of the related research and prospect of its future development.

关 键 词：番茄 Mi-1基因 根结线虫 

分 类 号：Q943.2[生物学—植物学] S436.412[农业科学—农业昆虫与害虫防治]