Limited information is available on the distribution of grapevine red blotch virus (GRBV) in grape-growing regions outside North America. In this study, the presence of GRBV was investigated in 596 grapevine samples coming from different sources in Northern Italy, including rootstock and table grape accessions from ampelographic collections, and commercial varieties with red blotch-like symptoms. Only ‘Queen’ and ‘Incrocio Dalmasso VIII-5’ accessions, collected from the CREA-Viticulture and Enology repository of table grape varieties, tested positive for GRBV. Sequencing of fragments from replication and coat protein genes revealed that the two accessions were infected with GRBV isolates belonging to two distinct lineages. While the American origin of ‘Queen’ could explain the GRBV presence in this accession, the viral infection of the Italian ‘Incrocio Dalmasso VIII-5’ remains an unsolved mystery.

Grapevine red blotch virus is sporadically present in a germplasm collection in Northern Italy

Casarin, Sofia;
2021

Abstract

Limited information is available on the distribution of grapevine red blotch virus (GRBV) in grape-growing regions outside North America. In this study, the presence of GRBV was investigated in 596 grapevine samples coming from different sources in Northern Italy, including rootstock and table grape accessions from ampelographic collections, and commercial varieties with red blotch-like symptoms. Only ‘Queen’ and ‘Incrocio Dalmasso VIII-5’ accessions, collected from the CREA-Viticulture and Enology repository of table grape varieties, tested positive for GRBV. Sequencing of fragments from replication and coat protein genes revealed that the two accessions were infected with GRBV isolates belonging to two distinct lineages. While the American origin of ‘Queen’ could explain the GRBV presence in this accession, the viral infection of the Italian ‘Incrocio Dalmasso VIII-5’ remains an unsolved mystery.
File in questo prodotto:
File Dimensione Formato  
Bertazzon2021_Article_GrapevineRedBlotchVirusIsSpora.pdf

non disponibili

Tipologia: Versione Editoriale (PDF)
Licenza: Non pubblico
Dimensione 577.52 kB
Formato Adobe PDF
577.52 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11390/1213120
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact