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| Rivas,Eliana Borges; Bôdi,Estevão Cardoso de Almeida; Harakava,Ricardo; Gregori,Fabio; Gonçalves,Marcos Cesar. |
| Abstract: The objective of this work was to describe the occurrence of quarantine Tulip breaking virus (TBV, synonym Lily mottle virus - LMoV) and Lily symptomless virus (LSV), and their respective molecular analyses, to provide data for supporting TBV removal from the Brazilian A1 quarantine pest list, since this virus has spread among the main commercial lily crops in Brazil. The occurrence of these viruses was detected in 12 cultivation areas through multiplex reverse transcription (RT-PCR), using specific primers to genes encoding the respective coat proteins (CP). Eight fragments of 800 nucleotides (nt) obtained from the LMoV-infected lilies and nine fragments of 600 nt from LSV-infected lilies were sequenced. Phylogenetic tree reconstruction showed a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lilium; Lily mottle virus; Lily symptomless virus; Phylogeny; Recombination analysis; RT-PCR.. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2016000500615 |
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| Fernandes,Maria Judite Bittencourt; Simoni,Isabela Cristina; Harakava,Ricardo; Rivas,Eliana Borges; Arns,Clarice Weis. |
| Infectious bursal disease virus (IBDV) is classified according to the antigenicity and virulence into classical virulent (cv), very virulent (vv), and antigenic variant strains. The molecular basis for the IBDV antigenic variation is well established and is associated to the capsid protein, VP2 (gene VP2 of segment A), whereas both VP2 and the RNA-dependent RNA polymerase, VP1 (gene VP1 of segment B), have been correlated with the virulence. In this study, seventeen Brazilian IBDV samples previously characterized by the VP2 gene as cv (three) and vv (fourteen) strains were genetically and molecularly analyzed for their VP1 gene. All of the strains kept with the same cv or vv classification except one sample, Br/03/DR. This sample was classified as vv by... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brazilian infectious bursal disease virus; Very virulent strain; VP1; Sequencing; Phylogenetic analysis. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000300024 |
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