中文摘要：本研究检测了褐飞虱种群取食同一部位时，不同取食能力的褐飞虱个体间水平传播和垂直传播病毒（对特定抗性植物或抗性基因的耐受能力）的可能性。本研究结果初步表明，混合种群（包括已经适应于取食水稻抗性品种的褐飞虱）共同取食，可能会加速褐飞虱对水稻抗性的适应性。
外文摘要：This study examines the possibility of horizontal and vertical transmission of virulence (the ability to tolerate a given resistant plant or resistance gene) between individuals from brown planthopper, Nilaparvata lugens (Stal) (Hemiptera: Delphacidae), populations with distinct feeding abilities when their populations share the same feeding sites (virulence acquisition hypothesis). We created optimal conditions for intraspecific interactions on the same rice, Oryza sativa L. (Poaceae), plants between planthoppers from populations with different feeding histories: an 'avirulent' population that was continually reared on a susceptible variety, and a 'virulent' population that had been selected over several generations on the resistant variety IR62, that possesses the Bph3 gene. We noted that planthoppers attained highest weights on rice plants that had previously been attacked by conspecifics from the IR62-selected population. We also tested the ability of planthoppers to feed on IR62 and the susceptible cv. Taichung Native 1 (TN1) after interacting with individuals from the IR62-selected population on a tolerant rice cultivar (Triveni). Feeding by avirulent planthoppers on both IR62 and TN1 improved after feeding on the same rice plants with virulent planthoppers. Furthermore, the effects were carried over to planthopper progenies. Our preliminary results indicate that feeding by mixed populations that include individuals adapted to feed on resistant varieties potentially accelerates adaptation by N. lugens to rice resistance.
外文关键词：Bph3 gene；contemporaneous feeding；facilitation；host plant resistance；oral secretions; rice；Oryza sativa；Poaceae；brown planthopper；Hemiptera；Delphacidae
作者：Ferrater, Jedeliza B.；Horgan, Finbarr G.
作者单位：悉尼科技大学
期刊名称：ENTOMOLOGIA EXPERIMENTALIS ET APPLICATA
期刊影响因子：1.442
出版年份：2016
出版刊次：7
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