Archives of Virology (2014) 159, 727-737

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L.G. Zanardo, F.N. Silva, A.T.M. Lima, D.F. Milanesi, G.P. Castilho-Urquiza, A.M.R. Almeida, F.M. Zerbini and C.M. Carvalho (2014)
Molecular variability of Cowpea mild mottle virus infecting soybean in Brazil
Archives of Virology 159 (4), 727-737
Abstract: Molecular variability was assessed for 18 isolates of cowpea mild mottle virus (CPMMV, genus Carlavirus, family Betaflexiviridae) found infecting soybean in various Brazilian states (Bahia, Goiás, Maranhão, Mato Grosso, Minas Gerais, Pará) in 2001 and 2010. A variety of symptoms was expressed in soybean cv. CD206, ranging from mild (crinkle/blistering leaves, mosaic and vein clearing) to severe (bud blight, dwarfing, leaf and stem necrosis). Recombination analysis revealed only one CPMMV isolate to be recombinant. Pairwise comparisons and phylogenetic analysis were performed for partial genomes (ORF 2 to the 3' terminus) and for each ORF individually (ORFs 2 to 6), showing the isolates to be distinct. The topology of the phylogenetic tree could be related to symptoms, but not to the year of collection or geographical origin. Additionally, the phylogenetic analysis supported the existence of two distinct strains of the virus, designated CPMMV-BR1 and CPMMV-BR2, with molecular variations between them.
(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): F. Murilo Zerbini, Claudine Márcia Carvalho

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

Pest and/or beneficial records:

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

Cowpea mild mottle virus Soybean (Glycine max) Brazil (south)
Cowpea mild mottle virus Soybean (Glycine max) Brazil (NW)
Cowpea mild mottle virus Soybean (Glycine max) Brazil (NE)