Archives of Virology (2011) 156, 1049-1052

Giuseppe Parrella, Nadia Acanfora, Anelise F. Orílio and Jesús Navas-Castillo (2011)
Complete nucleotide sequence of a Spanish isolate of Alfalfa mosaic virus: evidence for additional genetic variability
Archives of Virology 156 (6), 1049-1052
Abstract: Alfalfa mosaic virus (AMV) is a plant virus that is distributed worldwide and can induce necrosis and/or yellow mosaic on a large variety of plant species, including commercially important crops. It is the only virus of the genus Alfamovirus in the family Bromoviridae. AMV isolates can be clustered into two genetic groups that correlate with their geographic origin. Here, we report for the first time the complete nucleotide sequence of a Spanish isolate of AMV found infecting Cape honeysuckle (Tecoma capensis) and named Tec-1. The tripartite genome of Tec-1 is composed of 3643 nucleotides (nt) for RNA1, 2594 nt for RNA2 and 2037 nt for RNA3. Comparative sequence analysis of the coat protein gene revealed that the isolate Tec-1 is distantly related to subgroup I of AMV and more closely related to subgroup II, although forming a distinct phylogenetic clade. Therefore, we propose to split subgroup II of AMV into two subgroups, namely IIA, comprising isolates previously included in subgroup II, and IIB, including the novel Spanish isolate Tec-1.
(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): Giuseppe Parrella, Jesús Navas-Castillo

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

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Alfalfa mosaic virus	Tecoma (crop)	Spain (continental)