New species emergence via recombination among isolates of the brazilian tomato infecting Begomovirus complex

Partial nucleotide sequences of five tomato infecting Begomovirus isolates were determined from DNA-A fragments, corresponding to the 5' region of the replication associated protein gene, the intergenic region and the 5' region of the coat protein gene. Isolate DFM shared 95% identity with...

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Published inPesquisa agropecuaria brasileira Vol. 41; no. 8; pp. 1329 - 1332
Main Authors Inoue-Nagata, Alice Kazuko, Martin, Darren Patrick, Boiteux, Leonardo Silva, Giordano, Leonardo de Britto, Bezerra, Isabel Cristina, Ávila, Antonio Carlos de
Format Journal Article
LanguageEnglish
Published Embrapa Informação TecnológicaPesquisa Agropecuária Brasileira 01.08.2006
Embrapa Secretaria de Pesquisa e Desenvolvimento; Pesquisa Agropecuária Brasileira
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Summary:Partial nucleotide sequences of five tomato infecting Begomovirus isolates were determined from DNA-A fragments, corresponding to the 5' region of the replication associated protein gene, the intergenic region and the 5' region of the coat protein gene. Isolate DFM shared 95% identity with Tomato mottle leaf curl virus (TMoLCV), isolates 34, PA-05, and Ta4 were 88% identical to Tomato yellow vein streak virus and isolate DF-BR3 shared 77% identity with TMoLCV. Recombination analysis indicated that isolate DF-BR3 was a chimaera, and it provided evidence that there is a complex and actively recombining population of tomato infecting begomoviruses in Brazil. A seqüência de nucleotídeos parcial de cinco isolados de Begomovirus foi determinada do DNA-A, correspendente à região intergênica e à porção 5' do gene associado à replicação e da capa protéica. O isolado DFM apresentou identidade de 95% com Tomato mottle leaf curl virus (TMoLCV); os isolados 34, PA-05 e Ta4 foram 88% idênticos ao Tomato yellow vein streak virus (ToYVSV); e o isolado DF-BR3 mostrou 77% de identidade com TMoLCV. Análise de recombinação indicou que o isolado DF-BR3 seria uma quimera e evidencia que um complexo de espécies de begomovírus bipartidos está em formação no Brasil.
Bibliography:2006004305
H20
10.1590/S0100-204X2006000800018
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2006000800018
ISSN:0100-204X
1678-3921
1678-3921
0100-204X
DOI:10.1590/S0100-204X2006000800018