Sequence analysis of the entire RNA genome of a sweet potato chlorotic fleck virus isolate reveals that it belongs to a distinct carlavirus species

Sequence analysis of the entire RNA genome of a sweet potato chlorotic fleck virus isolate... Since the paucity of information on sweet potato chlorotic fleck virus (SPCFV) had precluded its classification, we have determined the complete nucleotide sequence of the single-stranded RNA genome of a Ugandan isolate of SPCFV. The genome is 9104 nucleotides long (excluding the poly(A) tail) and potentially includes six open reading frames (ORFs). Based on genomic organisation and sequence similarity, SPCFV appears to be a member of the genus Carlavirus (family Flexiviridae ). However, SPCFV is distantly related to typical carlaviruses, as most of its putative gene products share amino acid sequence identities of <40% with those of typical carlaviruses. Its closest relative is melon yellowing-associated virus, a proposed carlavirus from Brazil, with which it shares ORF5 and ORF6 amino acid sequence identities of 61 and 46%, respectively. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Virology Springer Journals

Sequence analysis of the entire RNA genome of a sweet potato chlorotic fleck virus isolate reveals that it belongs to a distinct carlavirus species

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Publisher
Springer-Verlag
Copyright
Copyright © 2007 by Springer-Verlag
Subject
Biomedicine; Virology; Medical Microbiology; Infectious Diseases
ISSN
0304-8608
eISSN
1432-8798
D.O.I.
10.1007/s00705-006-0891-z
Publisher site
See Article on Publisher Site

Abstract

Since the paucity of information on sweet potato chlorotic fleck virus (SPCFV) had precluded its classification, we have determined the complete nucleotide sequence of the single-stranded RNA genome of a Ugandan isolate of SPCFV. The genome is 9104 nucleotides long (excluding the poly(A) tail) and potentially includes six open reading frames (ORFs). Based on genomic organisation and sequence similarity, SPCFV appears to be a member of the genus Carlavirus (family Flexiviridae ). However, SPCFV is distantly related to typical carlaviruses, as most of its putative gene products share amino acid sequence identities of <40% with those of typical carlaviruses. Its closest relative is melon yellowing-associated virus, a proposed carlavirus from Brazil, with which it shares ORF5 and ORF6 amino acid sequence identities of 61 and 46%, respectively.

Journal

Archives of VirologySpringer Journals

Published: Apr 1, 2007

References

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