Genetic polymorphisms are the basis of the natural diversity seen in all life on earth, also in plant-pathogen interactions. Initially, studies on plant-pathogen interaction focused on reporting phenotypic variation in resistance properties and on the identification of underlying major genes. Nowadays, the field of plant-pathogen interactions is moving from focusing on families of single dominant genes involved in gene-for-gene interactions to an understanding of the plant immune system in the context of a much more complex signaling network and quantitative resistance. Simultaneously, studies on pathosystems from the wild and genome analyses advanced, revealing tremendous variation in natural plant populations. It is now imperative to place studies on genetic diversity and evolution of plant-pathogen interactions in the appropriate molecular biological, as well as evolutionary, context.

中文翻译：

---

限制病原体损失的植物多态性：从基因家族扩展到复杂的网络进化。

遗传多态性是地球上所有生命以及植物-病原体相互作用中自然多样性的基础。最初，植物-病原体相互作用的研究集中在报告抗性特性的表型变异和潜在主要基因的鉴定上。如今，植物-病原体相互作用领域正从关注参与基因间相互作用的单个显性基因家族转向在更复杂的信号网络和数量抗性的背景下了解植物免疫系统。同时，对野生病理系统和基因组分析的研究也取得了进展，揭示了天然植物种群的巨大变异。