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首页> 外文期刊>Journal of Economic Entomology >Host Plant Infection by Soybean Mosaic Virus Reduces the Fitness of Its Vector, Aphis glycines (Hemiptera: Aphididae)
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Host Plant Infection by Soybean Mosaic Virus Reduces the Fitness of Its Vector, Aphis glycines (Hemiptera: Aphididae)

机译：大豆马赛克病毒的宿主植物感染减少了其载体的适应性，Aphis甘氨酸（Hemiptera：Aphididae）

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摘要

Coevolutionary interactions between pathogens and their insect vectors can dramatically impact the fitness of herbivorous insects and patterns of plant disease transmission. Soybean mosaic virus (SMV) is a common disease in soybean production worldwide. Infected seed is the primary source of inoculum in fields and the virus is secondarily spread among plants by the soybean aphid, Aphis glycines Matsumura (Hemiptera: Aphididae), in a nonpersistent manner. In this study, we compared the biological fitness of A. glycines colonizing both SMV-infected and uninfected soybean plants. Aphids feeding on SMV-infected soybean seedlings were significantly smaller and lighter than those feeding on uninfected plants across life stages. SMV infection caused delayed development of aphid nymphs on soybean seedlings, but this was more than compensated by a reduction in the pre-reproductive period of apterous adults. The fecundity of A. glycines was reduced when feeding on SMV-infected seedlings, resulting in a lower reproductive rate, a longer generation time, and a slower population doubling time. A smaller proportion of aphid offspring developed into alatae when feeding on SMV-infected soybean seedling, and these took longer to mature than their counterparts on uninfected plants. We infer that SMV infection has significantly negative effects on the biological performance of A. glycines, which may be consistent with the long-term coevolution of SMV, soybean, and A. glycines in the transmission cycle of SMV.
机译：病原体与其昆虫载体之间的共同相互作用可以显着影响食草昆虫的适应性和植物疾病传播的模式。大豆马赛克病毒（SMV）是全球大豆生产中的常见疾病。受感染的种子是田间接种物的主要来源，病毒通过大豆蚜虫，甘露糖豆腐（Hemiptera：Aphididae）的植物中的植物分布在植物中。在这项研究中，我们比较了A.甘氨酸的生物学适应性殖民殖民化SMV感染和未感染的大豆植物。在SMV感染的大豆幼苗上饲养的蚜虫显着较大，比饲养跨越寿命的未感染植物的蚜虫。 SMV感染导致大豆幼苗对蚜虫若虫的延迟发育，但这不仅仅是通过药物预生殖成人的预生殖期的降低而得到补偿。在喂养SMV感染的幼苗时，甘氨酸的繁殖力降低，导致较低的生殖率，更长的一段时间，较慢的人口倍增时间。在饲喂SMV感染的大豆幼苗时，蚜虫后代的蚜虫后代比例较小，而这些蚜虫将比未感染的植物上的对应物成熟。我们推出SMV感染对A.甘氨酸的生物学性能具有显着的负面影响，这可能与SMV传输周期中的SMV，大豆和A.甘氨酸的长期参数一致。

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