Two suppressors of RNA silencing encoded by cereal-infecting members of the family Luteoviridae
文献类型： 外文期刊
第一作者： Zhai, Hao
作者： Zhai, Hao;Zhao, Kun;Wu, Beilei;Wang, Xifeng
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期刊名称：JOURNAL OF GENERAL VIROLOGY （ 影响因子：3.891； 五年影响因子：3.719 ）
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收录情况： SCI
摘要： Several members of the family Luteoviridae are important pathogens of cultivated plant species of the family Gramineae. In this study, we explored RNA-silencing suppressors (RSSs) encoded by two cereal-infecting luteoviruses: barley yellow dwarf virus and wheat yellow dwarf virus (BYDV and WYDV, respectively). The P0 protein of WYDV-GPV (P0 ~(GPV)) and the P6 protein of BYDV-GAV (P6 ~(GAV)) displayed RSS activities when expressed in agro-infiltrated leaves of Nicotiana benthamiana, by their local ability to inhibit post-transcriptional gene silencing of GFP. Analysis of GFP, mRNA and GFP-specific small interfering RNA indicated that both P0 ~(GPV) and P6 ~(GPV) are suppressors of silencing that can restrain not only local but also systemic gene silencing. This is the first report of RSS activity of the P6 protein in a member of the genus Luteovirus.
分类号： R37
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