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Viruses 2016, 8(8), 228; doi:10.3390/v8080228

Ins and Outs of Multipartite Positive-Strand RNA Plant Viruses: Packaging versus Systemic Spread

1
Institut de Biologie Moléculaire des Plantes, Integrative Virology, CNRS UPR2367, Université de Strasbourg, 12 rue du Général Zimmer, 67084 Strasbourg, France
2
Dipartimento di Scienze Agrarie, Area Patologia Vegetale, Università di Bologna, Viale Fanin 40, 40127 Bologna, Italy
*
Authors to whom correspondence should be addressed.
Academic Editor: Eric O. Freed
Received: 31 May 2016 / Revised: 29 July 2016 / Accepted: 9 August 2016 / Published: 18 August 2016
(This article belongs to the Special Issue RNA Packaging)
View Full-Text   |   Download PDF [2555 KB, uploaded 18 August 2016]   |  

Abstract

Viruses possessing a non-segmented genome require a specific recognition of their nucleic acid to ensure its protection in a capsid. A similar feature exists for viruses having a segmented genome, usually consisting of viral genomic segments joined together into one viral entity. While this appears as a rule for animal viruses, the majority of segmented plant viruses package their genomic segments individually. To ensure a productive infection, all viral particles and thereby all segments have to be present in the same cell. Progression of the virus within the plant requires as well a concerted genome preservation to avoid loss of function. In this review, we will discuss the “life aspects” of chosen phytoviruses and argue for the existence of RNA-RNA interactions that drive the preservation of viral genome integrity while the virus progresses in the plant. View Full-Text
Keywords: phytovirus; segmented genome; genome integrity; systemic movement; RNA-RNA interaction phytovirus; segmented genome; genome integrity; systemic movement; RNA-RNA interaction
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Dall’Ara, M.; Ratti, C.; Bouzoubaa, S.E.; Gilmer, D. Ins and Outs of Multipartite Positive-Strand RNA Plant Viruses: Packaging versus Systemic Spread. Viruses 2016, 8, 228.

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