甜瓜抗病基因的研究进展及其应用前景

甜瓜是世界各地都广泛栽培的重要经济作物，其营养丰富味道美好而备受人们的喜爱。随着甜瓜种质资源商品化，甜瓜病虫害扩散蔓延迅速，已成为影响甜瓜产量和品质的主要因素。本文概述了对甜瓜生产和品质危害较严重的主要病虫害的发病特征、蔓延情况及相应抗性基因的研究进展，目前已有50个甜瓜抗病基因被认知。另外对与抗病性状相关基因的定位、分子标记、分离克隆、甜瓜基因遗传图谱等研究现状进行了总结分析，综合阐述了甜瓜抗病基因在实践中的使用价值和应用前景：利用甜瓜抗病基因的分子标记进行甜瓜抗病育种辅助选择，将抗病基因转化感病品种进行抗病分子育种。

Development of Research about Resistance Genes Cloning in Melon (Cucumis melo L.) and the Applications Foreground

Melon is cultivated in the world to be the important economical crop which is popular because of its abundance nutrition and nice taste. With being commercial of melon breed resource, melon diseases and insect pests spread to all over the world rapidly and have been the main factors of impaction on the yield and quality of melon. Our article summarized the infection character and extending situation of melon disease that threatened to melon cultivating and quality severely. There have been 50 disease resistance genes known to date. In addition to, we summed up the development of mapping, molecular markers, isolation and clone, genomic mapping construction about melon resistance genes. And we expounded the value and foreground of resistance genes in applications synthetically. The microsatellite markers of resistance genes could be the important tools to select melon strains in diseases resistance breeding. And we could transform the resistance genes into susceptible melon species with high value in practice to obtain resistant trains.