Archives of Virology (2005) 150, 1439-1447

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D. Janssen, G. Martín, L. Velasco, P. Gómez, E. Segundo, L. Ruiz and I.M. Cuadrado (2005)
Absence of a coding region for the helper component-proteinase in the genome of Cucumber vein yellowing virus, a whitefly-transmitted member of the Potyviridae
Archives of Virology 150 (7), 1439-1447
Abstract: The complete nucleotide sequence of isolates of Cucumber vein yellowing virus (CVYV) has been determined. The viral genome comprises 9734 nucleotides, excluding a 3'-terminal poly(A) sequence. The genome of CVYV has a 5'-non coding and a 3' non coding region of respectively 67 and 240 nucleotides. The RNA of CVYV encodes a single polyprotein of 3148 amino acid residues and has a deduced genome organization and motifs typical for a member of the family Potyviridae. However, CVYV is atypical because it lacks a coding sequence region for the putative helper-component as well as conserved helper-component-proteinase motifs which may account for its vector relations. All the present coding regions were compared to those from several members of the Potyviridae family. CVYV is most closely related to Sweetpotato mild mottle virus confirming its assignation to the genus Ipomovirus, despite similarities with tritimoviruses.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Eduardo Segundo, Dirk Janssen, Leonardo Velasco (IFAPA), Pedro Gómez

Research topic(s) for pests/diseases/weeds:
molecular biology - genes

Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.

Cucumber vein yellowing virus