Betanodaviruses are small ssRNA viruses responsible for viral encephalopathy and retinopathy, otherwise known as viral nervous necrosis, in marine fish worldwide. These viruses can be either horizontally or vertically transmitted and have been sporadically detected in invertebrates, which seem to be one of the possible viral sources. Twenty-eight new betanodavirus strains were retrieved in three molluscs species collected from different European countries between 2008 and 2015. The phylogenetic analyses revealed that strains retrieved from bivalve molluscs are closely related to viruses detected in finfish in Southern Europe in the period 2000-2009. Nevertheless, a new betanodavirus strain, markedly different from the other members of the RGNNV genotype, was detected. Such a massive and varied presence of betanodaviruses in bivalve molluscs greatly stresses the risks of transmission previously feared for other invertebrates. Bivalve molluscs reared in the same area as farmed and wild finfish could act as a reservoir of the virus. Furthermore, current European regulations allow relaying activities and the sale of live bivalve molluscs, which could pose a real risk of spreading betanodaviruses across different geographic regions. To our knowledge, this is the first study, which focuses on the detection and genetic characterization of betanodaviruses in bivalve molluscs. Copyright

Volpe, E., Grodzki, M., Panzarin, V., Guercio, A., Purpari, G., Serratore, P., et al. (2018). Detection and molecular characterization of betanodaviruses retrieved from bivalve molluscs. JOURNAL OF FISH DISEASES, 41(4), 603-611 [10.1111/jfd.12759].

Detection and molecular characterization of betanodaviruses retrieved from bivalve molluscs

Volpe, E.;Grodzki, M.;Serratore, P.;Ciulli, S.
2018

Abstract

Betanodaviruses are small ssRNA viruses responsible for viral encephalopathy and retinopathy, otherwise known as viral nervous necrosis, in marine fish worldwide. These viruses can be either horizontally or vertically transmitted and have been sporadically detected in invertebrates, which seem to be one of the possible viral sources. Twenty-eight new betanodavirus strains were retrieved in three molluscs species collected from different European countries between 2008 and 2015. The phylogenetic analyses revealed that strains retrieved from bivalve molluscs are closely related to viruses detected in finfish in Southern Europe in the period 2000-2009. Nevertheless, a new betanodavirus strain, markedly different from the other members of the RGNNV genotype, was detected. Such a massive and varied presence of betanodaviruses in bivalve molluscs greatly stresses the risks of transmission previously feared for other invertebrates. Bivalve molluscs reared in the same area as farmed and wild finfish could act as a reservoir of the virus. Furthermore, current European regulations allow relaying activities and the sale of live bivalve molluscs, which could pose a real risk of spreading betanodaviruses across different geographic regions. To our knowledge, this is the first study, which focuses on the detection and genetic characterization of betanodaviruses in bivalve molluscs. Copyright
2018
Volpe, E., Grodzki, M., Panzarin, V., Guercio, A., Purpari, G., Serratore, P., et al. (2018). Detection and molecular characterization of betanodaviruses retrieved from bivalve molluscs. JOURNAL OF FISH DISEASES, 41(4), 603-611 [10.1111/jfd.12759].
Volpe, E.; Grodzki, M.; Panzarin, V.; Guercio, A.; Purpari, G.; Serratore, P.; Ciulli, S.
File in questo prodotto:
File Dimensione Formato  
Volpe et al., 2018_JFD postprint_con_copertina.pdf

accesso aperto

Tipo: Postprint
Licenza: Licenza per accesso libero gratuito
Dimensione 746.89 kB
Formato Adobe PDF
746.89 kB Adobe PDF Visualizza/Apri

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: https://hdl.handle.net/11585/620926
Citazioni
  • ???jsp.display-item.citation.pmc??? 9
  • Scopus 21
  • ???jsp.display-item.citation.isi??? 19
social impact