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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
Viruses 2016, 8(8), 228; https://doi.org/10.3390/v8080228
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)
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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MDPI and ACS Style

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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