Molecular characterization of a virus from the family luteoviridae associated with cotton blue disease.

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Author(s): CORRÊA, R. L.; SILVA, T. F.; SIMÕES-ARAÚJO, J. L.; BARROSO, P. A. V.; VIDAL, M. S.; VASLIN, M. F. S.

Summary: Cotton blue disease is an aphid-transmitted cotton disease described in Brazil in 1962 as Vein Mosaic “var. Ribeirão Bonito”. At present it causes economically important losses in cotton crops if control measures are not implemented. The observed symptoms and mode of transmission have prompted researchers to speculate that cotton blue disease could be attributed to a member of the family Luteoviridae, but there was no molecular evidence supporting this hypothesis. We have amplified part of the genome of a virus associated with this disease using degenerate primers for members of the family Luteoviridae. Sequence analysis of the entire capsid and a partial RdRp revealed a virus probably belonging to the genus Polerovirus. Based on our results we propose that cotton blue disease is associated with a virus with the putative name Cotton leafroll dwarf virus (CLRDV).

Publication year: 2005

Types of publication: Journal article

Unit: Embrapa Cotton

Keywords: Algodão, Doença do algodão, Doença do azul, Gossypium spp, Mosaico do algodão, Plant fibres, Planta Têxtil, Propagation, Propagação, Textile fibres, Vírus

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