Data/hora: 09/06/2024 04:02:30

Provedor de dados: | 102
País: | Brazil
Título: | Analysis of the nucleotide sequence of the coat protein and 3'-untranslated region of two Brazilian Potato virus Y isolates
Autores: | INOUE-NAGATA,ALICE K.; FONSECA,M. ESTHER N.; LOBO,TATIANA O.T.A.; ÁVILA,ANTÔNIO C. DE; MONTE,DAMARES C.
Data: | 2001-03-01
Ano: | 2001
Palavras-chave: | PVY; Potyvirus; Phylogenetic analysis; Taxonomy; Coat protein.
Resumo: | Two Brazilian Potato virus Y (PVY) isolates were biologically characterized as necrotic (PVY-NBR) and common (PVY-OBR) based upon symptoms on test plants. Additional characterization was performed by sequencing a cDNA corresponding to the 3' terminal region of the viral genome. The sequence consisted of 195 nucleotides (nt) coding part of the nuclear inclusion body b (NIb) gene, 804 nt of the coat protein (CP) gene, and 328 nt (PVY-OBR) or 326 nt (PVY-NBR) of the 3'-untranslated region (UTR). Translation of the sequence resulted in one single open reading frame with part of the NIb and a CP of 267 amino acids. The two isolates shared 95.1% similarity in the CP amino acid sequence. The CP and the 3'-UTR sequence of the Brazilian isolates were compared to those of other PVY isolates previously reported and unrooted phylogenetic trees were constructed. The trees revealed a separation of two distinct clusters, one comprising most of the common strains and the other comprising the necrotic strains. PVY-OBR was clustered in the common group and PVY-NBR in the necrotic one.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582001000100008
Editor: | Sociedade Brasileira de Fitopatologia
Relação: | 10.1590/S0100-41582001000100008
Formato: | text/html
Fonte: | Fitopatologia Brasileira  v.26 n.1 2001
Fonte: | info:eu-repo/semantics/openAccess