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Tropical Plant Pathology

versão impressa ISSN 1982-5676


OLIVEIRA, Layssa M. de; INOUE-NAGATA, Alice K.  e  NAGATA, Tatsuya. Complete genome nucleotide sequence of Pepper mild mottle virus isolated in the Federal District, Brazil. Trop. plant pathol. [online]. 2010, vol.35, n.6, pp.373-376. ISSN 1982-5676.

Occurrence of Pepper mild mottle virus (PMMoV) on Capsicum plants has become common in Brazil. Despite the importance of this virus, genome information is still lacking for South American isolates. In this report, the first complete genome sequence of a Brazilian isolate of PMMoV (BR-DF01) was elucidated and compared with other PMMoV sequences. The nucleotide sequence of the complete genome of BR-DF01 isolate shared the highest nucleotide identity (99.54%) with the Japanese isolate JP-J, which does not overcome L3 resistance gene of Capsicum plants, as also observed for BR-DF01. The coat protein (CP) amino acid sequence of these two isolates was identical, which suggested that CP is the key factor for L-based resistance breaking. Phylogenetic analysis implied that BR-DF01 and PMMoV isolates belonging to Cluster I, including JP-J isolate, may share a common ancestral origin.

Palavras-chave : Tobamovirus; Capsicum.

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