在许多国家，草莓是一种重要的园艺作物。由于真菌病害严重影响其产量，对其进行防控，就带来使用过量化学物质的问题。尽管草莓抗病的分子标记已有报道，但是商业种植的草莓在遗传组成上是八倍体，所以难以将分子标记与抗病基因联系在一起。目前还没有有关从草莓中克隆可能的抗性基因的任何报道。本研究的目的是从野生和栽培的草莓中分离并鉴定抗性基因类似物（resistance gene analogues, RGAs），并对其变异性和系统进化关系进行评价。
【参考译文】Strawberry is an important horticultural crop in many countries. Because fungal diseases seriously affect their output, the problem of using excessive chemicals will arise if they are prevented and controlled. Although molecular markers of strawberry disease resistance have been reported, commercial strawberry is octaploid in genetic composition, so it is difficult to associate molecular markers with disease resistance genes. At present, there is no report on cloning possible resistance genes from strawberry. The purpose of this study is to isolate and identify resistance gene analogues (RGAs) from wild and cultivated strawberries, and evaluate their variability and phylogenetic relationship.
