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Updated: Jun 28, 2026

Generation and Assembly of Virus-Specific Nucleocapsids of the Respiratory Syncytial Virus
Published on: July 27, 2021
[From rhizomania to viral RNAs structure functions]
Abstract:
Beet necrotic yellow vein virus (BNYVV), the causal agent of sugar beet rhizomania, is a multipartite positive-sense RNA virus whose biology illustrates the close relationship between viral RNA structure, interactions, and pathogenicity. Composed of four to five individually encapsidated segments, its genome contains all the information necessary for its replication, viral movement from cell to cell and systemic movement, and suppression of RNA interference (RNAi), the major antiviral defense in plants. The accumulation of a non-coding RNA fragment originated from RNA3 (ncRNA3) resistant to degradation by cellular exoribonucleases is necessary for long-distance viral movement. This non-coding RNA also contributes to the suppression of RNAi. This review provides an update on knowledge about BNYVV, focusing on recent advances in the structure-function relationship of viral RNAs and their implications for pathogenicity keeping viral genomic integrity within the infected plant.
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