MORÁN, Félix; OLMOS, Antonio; CANDRESSE, Thierry; RUIZ-GARCÍA, Ana Belén

doi:10.3390/plants12183300

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MORÁN, Félix
Centro de Protección Vegetal y Biotecnología [IVIA]

OLMOS, Antonio
Centro de Protección Vegetal y Biotecnología [IVIA]

CANDRESSE, Thierry
Biologie du fruit et pathologie [BFP]

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Ce document a été publié dans

Plants. 2023-09, vol. 12, n° 18, p. 3300

MDPI

Résumé en anglais

In this study, we identified Plasmopara-viticola-lesion-associated mononegaambi virus 3 (recently classified as Penicillimonavirus gammaplasmoparae), a fungi-associated mymonavirus, in grapevine plants showing an unusual upward curling symptomatology on the leaves and premature decline. Mymonaviridae is a family comprising nine genera of negative-sense single-stranded RNA viruses infecting filamentous fungi, although few of them have been associated with oomycetes, plants, and insects. Although the first mymonavirus genome description was reported a decade ago, the genome organization of several genera in the family, including the genus Penicillimonavirus, has remained unclear to date. We have determined the complete genome of P. gammaplasmoparae, which represents the first complete genomic sequence for this genus. Moreover, we provide strong evidence that P. gammaplasmoparae genome is bipartite and comprises two RNA molecules of around 6150 and 4560 nt. Our results indicate that the grapevine powdery mildew pathogen, Erysiphe necator, was also present in the analyzed plants and suggest P. gammaplasmoparae could be infecting this fungus. However, whether the fungus and/or the mycovirus are associated with the symptomatology that initially prompted these efforts remains to be determined.< Réduire

Mots clés en anglais

grapevine

HTS

mymonavirus

Penicillimonavirus gammaplasmoparae

Erysiphe necator

DOI

http://dx.doi.org/10.3390/plants12183300

Projet Européen

Marie Skłodowska-Curie grant agreement No 734736

Origine

Importé de hal

Unités de recherche

Biologie du Fruit & Pathologie (BFP) - UMR 1332