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hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorMARAIS, Armelle
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorFAURE, Chantal
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorTHEIL, Sébastien
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorCANDRESSE, Thierry
dc.date.issued2019
dc.identifier.issn1932-6203
dc.description.abstractEnTo elucidate the etiology of a new disease of shallot in France, double-stranded RNAs from asymptomatic and symptomatic shallot plants were analyzed using high-throughput sequencing (HTS). Annotation of contigs, molecular characterization and phylogenetic analyses revealed the presence in symptomatic plants of a virus complex consisting of shallot virus X (ShVX, Allexivirus), shallot latent virus (SLV, Carlavirus) and two novel viruses belonging to the genera Carlavirus and Potyvirus, for which the names of shallot virus S (ShVS) and shallot mild yellow stripe associated virus (SMYSaV), are proposed. Complete or near complete genomic sequences were obtained for all these agents, revealing divergent isolates of ShVX and SLV. Trials to fulfill Koch's postulates were pursued but failed to reproduce the symptoms on inoculated shallots, even though the plants were proved to be infected by the four viruses detected by HTS. Replanting of bulbs from SMYSaV-inoculated shallot plants resulted in infected plants, showing that the virus can perpetuate the infection over seasons. A survey analyzing 351 shallot samples over a four years period strongly suggests an association of SMYSaV with the disease symptoms. An analysis of SMYSaV diversity indicates the existence of two clusters of isolates, one of which is largely predominant in the field over years.
dc.language.isoen
dc.publisherPublic Library of Science
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.subject.enshallot mild yellow stripe disease
dc.subject.envirome
dc.title.enCharacterization of the virome of shallots affected by the shallot mild yellow stripe disease in France.
dc.typeArticle de revue
dc.identifier.doi10.1371/journal.pone.0219024
dc.subject.halSciences du Vivant [q-bio]/Biologie végétale/Phytopathologie et phytopharmacie
dc.subject.halSciences du Vivant [q-bio]/Microbiologie et Parasitologie/Virologie
bordeaux.journalPLoS ONE
bordeaux.pagee0219024
bordeaux.volume14
bordeaux.issue7
bordeaux.peerReviewedoui
hal.identifierhal-02617905
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02617905v1
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