Genome structure and organization of a member of a novel and distinct species of the genus Caulimovirus associated with dahlia mosaic

Genome structure and organization of a member of a novel and distinct species of the genus... The genome structure and organization of a new and distinct caulimovirus that is widespread in dahlia ( Dahlia variabilis ) was determined. The double-stranded DNA genome was ca. 7.0 kb in size and shared many of the features of the members of the genus Caulimovirus , such as the presence of genes potentially coding for the movement protein, the inclusion body protein, and the reverse transcriptase (RT), and an intergenic region consisting of a potential 35S promoter. However, the virus differed from the previously described dahlia mosaic caulimovirus and other known caulimoviruses in that the aphid transmission factor (ATF) was absent and the putative coat protein contained a C-terminal deletion and was fused in-frame with the RT. Sequence identity at the amino acid level with known caulimoviruses including a previously reported caulimovirus from dahlia was low and ranged from 32 to 72%. The absence of an ATF and the highly divergent nature of the genomic sequence are characteristics of this new caulimovirus that is widely associated with dahlia. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Virology Springer Journals

Genome structure and organization of a member of a novel and distinct species of the genus Caulimovirus associated with dahlia mosaic

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Publisher
Springer Vienna
Copyright
Copyright © 2008 by Springer-Verlag
Subject
Biomedicine; Infectious Diseases; Medical Microbiology ; Virology
ISSN
0304-8608
eISSN
1432-8798
D.O.I.
10.1007/s00705-008-0043-8
Publisher site
See Article on Publisher Site

Abstract

The genome structure and organization of a new and distinct caulimovirus that is widespread in dahlia ( Dahlia variabilis ) was determined. The double-stranded DNA genome was ca. 7.0 kb in size and shared many of the features of the members of the genus Caulimovirus , such as the presence of genes potentially coding for the movement protein, the inclusion body protein, and the reverse transcriptase (RT), and an intergenic region consisting of a potential 35S promoter. However, the virus differed from the previously described dahlia mosaic caulimovirus and other known caulimoviruses in that the aphid transmission factor (ATF) was absent and the putative coat protein contained a C-terminal deletion and was fused in-frame with the RT. Sequence identity at the amino acid level with known caulimoviruses including a previously reported caulimovirus from dahlia was low and ranged from 32 to 72%. The absence of an ATF and the highly divergent nature of the genomic sequence are characteristics of this new caulimovirus that is widely associated with dahlia.

Journal

Archives of VirologySpringer Journals

Published: Apr 1, 2008

References

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