A new virus infecting Myzus persicae has a genome organization similar to the species of the genus Densovirus
2003
van Munster, M | Dullemans, a M | Verbeek, M | van den Heuvel, J F J M | Reinbold, Catherine | Brault, Véronique | Clérivet, A | van Der Wilk, F | Plant Research International ; Wageningen University and Research [Wageningen] (WUR) | De Ruiter Seeds ; Partenaires INRAE | Unité de recherche biologie des interactions virus vecteur ; Institut National de la Recherche Agronomique (INRA) | Institut de Recherche pour le Développement (IRD [Réunion])
International audience
Afficher plus [+] Moins [-]anglais. The genomic sequence of a new icosahedral DNA virus infecting Myzus persicae has been determined. Analysis of 5499 nt of the viral genome revealed five open reading frames (ORFs) evenly distributed in the 5' half of both DNA strands. Three ORFs (ORF1-3) share the same strand, while two other ORFs (ORF4 and ORF5) are detected in the complementary sequence. The overall genomic organization is similar to that of species from the genus DENSOVIRUS: ORFs 1-3 most likely encode the non-structural proteins, since their putative products contain conserved replication motifs, NTP-binding domains and helicase domains similar to those found in the NS-1 protein of parvoviruses. The deduced amino acid sequences from ORFs 4 and 5 show sequence similarities with the structural proteins of the members of the genus DENSOVIRUS: These data indicate that this virus is a new species of the genus Densovirus in the family PARVOVIRIDAE: The virus was tentatively named Myzus persicae densovirus.
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