The avirulence(avr) or virulence(vir) genes determine host specificity via gene-for-gene interactions.
毒性基因则是以基因对基因互作的方式决定着寄主专化性。
参考来源 - 水稻黄单胞菌xopX基因和avrBs3/PthA基因的克隆与功能研究·2,447,543篇论文数据，部分数据来源于NoteExpress
由此推测，棉蚜寄主专化性的形成与生活史特性的分化有关。
It is inferred that there exists relationship between the formation of host specialization and differentiation of life cycle in A. gossypii.
作者认为，HRGP在寄主与病原相互作用的专化性识别机制中起重要作用。
Our results supported the view of which HRGP plays an important role in the mechanism of specific recognition host-pathogen interactions.
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