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Genetic Diversity of Rice stripe necrosis virus and New Insights into Evolution of the Genus Benyvirus

1
Earth and Life Institute, Applied Microbiology-Phytopathology, Université Catholique de Louvain (UCLouvain), Croix du Sud 2 Bte L07.05.03, 1348 Louvain-la-Neuve, Belgium
2
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires 1425, Argentina
3
Instituto de Patología Vegetal (IPAVE, CIAP, INTA), Camino 60 cuadras Km 5, Cordoba 5119, Argentina
4
PHIM, Plant Health Institute, Université de Montpellier, IRD, INRAE, CIRAD, SupAgro, 911 Avenue Agropolis, 34394 Montpellier, France
5
CIRAD, UMR PHIM, Campus International de Montferrier-Baillarguet, 34398 Montpellier, France
6
Laboratoire de Laboratoire de Virologie et de Biotechnologies Végétales, INERA—Institut de l’Environnement et de Recherches Agricoles, LMI Patho-Bios, Ouagadougou 01 BP 476, Burkina Faso
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editor: Feng Qu
Viruses 2021, 13(5), 737; https://doi.org/10.3390/v13050737
Received: 19 March 2021 / Revised: 12 April 2021 / Accepted: 21 April 2021 / Published: 23 April 2021
(This article belongs to the Section Viruses of Plants, Fungi and Protozoa)
The rice stripe necrosis virus (RSNV) has been reported to infect rice in several countries in Africa and South America, but limited genomic data are currently publicly available. Here, eleven RSNV genomes were entirely sequenced, including the first corpus of RSNV genomes of African isolates. The genetic variability was differently distributed along the two genomic segments. The segment RNA1, within which clusters of polymorphisms were identified, showed a higher nucleotidic variability than did the beet necrotic yellow vein virus (BNYVV) RNA1 segment. The diversity patterns of both viruses were similar in the RNA2 segment, except for an in-frame insertion of 243 nucleotides located in the RSNV tgbp1 gene. Recombination events were detected into RNA1 and RNA2 segments, in particular in the two most divergent RSNV isolates from Colombia and Sierra Leone. In contrast to BNYVV, the RSNV molecular diversity had a geographical structure with two main RSNV lineages distributed in America and in Africa. Our data on the genetic diversity of RSNV revealed unexpected differences with BNYVV suggesting a complex evolutionary history of the genus Benyvirus. View Full-Text
Keywords: RSNV; benyvirus; diversity; recombination RSNV; benyvirus; diversity; recombination
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MDPI and ACS Style

Bagayoko, I.; Celli, M.G.; Romay, G.; Poulicard, N.; Pinel-Galzi, A.; Julian, C.; Filloux, D.; Roumagnac, P.; Sérémé, D.; Bragard, C.; Hébrard, E. Genetic Diversity of Rice stripe necrosis virus and New Insights into Evolution of the Genus Benyvirus. Viruses 2021, 13, 737. https://doi.org/10.3390/v13050737

AMA Style

Bagayoko I, Celli MG, Romay G, Poulicard N, Pinel-Galzi A, Julian C, Filloux D, Roumagnac P, Sérémé D, Bragard C, Hébrard E. Genetic Diversity of Rice stripe necrosis virus and New Insights into Evolution of the Genus Benyvirus. Viruses. 2021; 13(5):737. https://doi.org/10.3390/v13050737

Chicago/Turabian Style

Bagayoko, Issiaka, Marcos Giovanni Celli, Gustavo Romay, Nils Poulicard, Agnès Pinel-Galzi, Charlotte Julian, Denis Filloux, Philippe Roumagnac, Drissa Sérémé, Claude Bragard, and Eugénie Hébrard. 2021. "Genetic Diversity of Rice stripe necrosis virus and New Insights into Evolution of the Genus Benyvirus" Viruses 13, no. 5: 737. https://doi.org/10.3390/v13050737

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