Molecular characterization of Hop latent virus and phylogenetic relationships among viruses closely related to carlaviruses

Molecular characterization of Hop latent virus and phylogenetic relationships among viruses... The complete nucleotide sequence of the hop latent virus (HpLV) genome was determined. The viral RNA genome is 8,612 nucleotides long, excluding the poly(A) tail, and contains six open reading frames (ORFs), which encode putative proteins of 224-kDa (ORF 1), 25-kDa (ORF 2), 11-kDa (ORF 3), 7-kDa (ORF 4), 34-kDa (ORF 5), and 12-kDa (ORF 6). ORF 5 encodes the coat protein as demonstrated by N-terminal sequencing of three proteolytic peptides derived from the virus particle. The genome organization of HpLV is similar to that of other species in the genus Carlavirus , and the overall sequence of HpLV is more similar to that of Potato virus M than to sequences of other carlaviruses reported to date. The amino acid sequences of the putative methyltransferase, RNA helicase, and RNA-dependent RNA polymerase encoded in ORF 1 and an ‘accessory’ helicase encoded in ORF 2 of the HpLV genome were compared with those of viruses in the ‘tymo’ lineage: the genera Carlavirus, Potexvirus, Allexivirus, Foveavirus, Trichovirus, Capillovirus, Vitivirus , and Tymovirus . The phylogenetic relationships among the viruses in these genera are discussed. This is the first molecular characterization of a carlavirus infecting hop plants. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Virology Springer Journals

Molecular characterization of Hop latent virus and phylogenetic relationships among viruses closely related to carlaviruses

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Publisher
Springer-Verlag
Copyright
Copyright © 2000 by Springer-Verlag/Wien
Subject
Legacy
ISSN
0304-8608
eISSN
1432-8798
D.O.I.
10.1007/s007050070005
Publisher site
See Article on Publisher Site

Abstract

The complete nucleotide sequence of the hop latent virus (HpLV) genome was determined. The viral RNA genome is 8,612 nucleotides long, excluding the poly(A) tail, and contains six open reading frames (ORFs), which encode putative proteins of 224-kDa (ORF 1), 25-kDa (ORF 2), 11-kDa (ORF 3), 7-kDa (ORF 4), 34-kDa (ORF 5), and 12-kDa (ORF 6). ORF 5 encodes the coat protein as demonstrated by N-terminal sequencing of three proteolytic peptides derived from the virus particle. The genome organization of HpLV is similar to that of other species in the genus Carlavirus , and the overall sequence of HpLV is more similar to that of Potato virus M than to sequences of other carlaviruses reported to date. The amino acid sequences of the putative methyltransferase, RNA helicase, and RNA-dependent RNA polymerase encoded in ORF 1 and an ‘accessory’ helicase encoded in ORF 2 of the HpLV genome were compared with those of viruses in the ‘tymo’ lineage: the genera Carlavirus, Potexvirus, Allexivirus, Foveavirus, Trichovirus, Capillovirus, Vitivirus , and Tymovirus . The phylogenetic relationships among the viruses in these genera are discussed. This is the first molecular characterization of a carlavirus infecting hop plants.

Journal

Archives of VirologySpringer Journals

Published: Dec 1, 2000

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