Characterization of a not so new potexvirus from babaco (Vasconcellea x heilbornii).
PLoS One
; 12(12): e0189519, 2017.
Article
em En
| MEDLINE
| ID: mdl-29244846
ABSTRACT
A new member of the genus Potexvirus was fully sequenced and characterized. The virus was isolated from babaco (Vasconcellea x heilbornii), a natural hybrid native to Ecuador. The virus contains a 6,692 nt long genome organized in five open reading frames in an arrangement typical of other potexviruses. Sequence comparisons revealed close relatedness with Papaya mosaic virus (PapMV), Alternathera mosaic virus (AltMV) and Senna mosaic virus (SenMV), exhibiting nucleotide identities up to 67% for the polymerase (Pol) and 68% for the coat protein (CP), with deduced amino acid identities of 70% and 72% for the Pol and CP, respectively. The presence of an AlkB domain, in the polymerase region, was observed. Terminal nucleotide sequences were conserved across potexviruses with characteristic motifs and predicted secondary structures at the 3' UTR. Although serologically undistinguishable from PapMV and AltMV, the new virus showed differences in host range and symptom induction. The name babaco mosaic virus is proposed for this newly characterized Potexvirus. The complete genome sequence of the new virus has been deposited in NCBI GenBank under accession number MF978248.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Potexvirus
/
Magnoliopsida
Tipo de estudo:
Prognostic_studies
Idioma:
En
Ano de publicação:
2017
Tipo de documento:
Article