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首页> 外文期刊>Plant Pathology >ROLE OF ACQUISITION AND INOCULATION TIME IN THE EXPRESSION OF CLONAL VARIATION FOR BYDV-PAV TRANSMISSION IN THE APHID SPECIES RHOPALOSIPHUM PADI
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ROLE OF ACQUISITION AND INOCULATION TIME IN THE EXPRESSION OF CLONAL VARIATION FOR BYDV-PAV TRANSMISSION IN THE APHID SPECIES RHOPALOSIPHUM PADI

机译：采集和接种时间在苜蓿红豆杉蚜虫BYDV-PAV传播中表达变异的作用

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摘要

Vector efficiency of 20 Rhopalosiphum padi clones, originating from Europe, North America and North Africa and exhibiting different types of life cycle, was evaluated by transmitting a French BYDV-PAV isolate to barley plants under five different acquisition/inoculation sequences (AAP/IAP). Differences between clones in transmission efficiency were found only when a short AAP was followed by a long LAP (6 h/120 h) and, to some extent, when a long AAP (48 h) was followed by a short IAP (6 h), but no differences were found when the conditions for virus transmission were optimal, i.e. long AAP followed by long IAP (48 h/120 h). There were no differences in transmission rates by clones of different geographical origins and with different life cycles. As a consequence, clonal variation is probably of little importance in the vector aspects of the epidemiology of PAV serotypes transmitted by R. padi, but the availability of a range of clones exhibiting transmission differences under limiting AAP or IAP conditions could be of interest for studies of virus-vector relationships.
机译：通过将法国BYDV-PAV分离株以五种不同的获取/接种序列（AAP / IAP）传递给大麦植物，评估了来自欧洲，北美洲和北非并展现出不同生命周期类型的20个Rhopalosiphum padi克隆的载体效率。 。仅在短AAP后加长LAP（6 h / 120 h），并且在某种程度上，长AAP（48 h）后短IAP（6 h），才发现克隆之间的传播效率差异。 ，但当病毒传播的条件最佳时，即长AAP后长IAP（48小时/ 120小时），则没有发现差异。不同地理来源和不同生命周期的克隆的传播速率没有差异。因此，克隆变异在R. padi传播的PAV血清型流行病学的载体方面可能并不重要，但是在有限的AAP或IAP条件下显示传播差异的一系列克隆的可用性可能值得研究病毒与媒介的关系。

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