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



Document title: New species emergence via recombination among isolates of the Brazilian tomato infecting Begomovirus complex
Journal: Pesquisa agropecuaria brasileira = Brazilian journal of agricultural research
Database: PERIÓDICA
System number: 000301278
ISSN: 0100-204X
Authors: 1




2
Institutions: 1Empresa Brasileira de Pesquisa Agropecuaria, Centro Nacional de Pesquisa de Hortalicas, Brasilia, Distrito Federal. Brasil
2University of Cape Town, Ciudad del Cabo. Sudáfrica
Year:
Season: Ago
Volumen: 41
Number: 8
Pages: 1329-1332
Country: Brasil
Language: Inglés
Document type: Nota breve o noticia
Approach: Analítico, descriptivo
English abstract 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
Portuguese abstract 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
Disciplines: Agrociencias,
Biología
Keyword: Fitopatología,
Virus,
Begomovirus,
Geminivirus,
Nuevas especies,
Recombinación genética,
Brasil
Keyword: Agricultural sciences,
Biology,
Phytopathology,
Virus,
Begomovirus,
Geminivirus,
New species,
Genetic recombination,
Brazil
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