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Extensive variation of sequence within isolates of grapevine virus B +
Year:
2004
Source of publication :
Virus Genes
Authors :
Gafny, Ron
;
.
Volume :
29
Co-Authors:
Shi, B.-J., Waite Diagnostics, School of Agriculture and Wine, Waite Camp., Univ. Adelaide, Glen O., Australia
Habili, N., Waite Diagnostics, School of Agriculture and Wine, Waite Camp., Univ. Adelaide, Glen O., Australia
Gafny, R., Institute of Plant Protection, Agricultural Research Organization, Volcani Ctr., P.O.Box 6, Bet D., Israel
Symons, R.H., Waite Diagnostics, School of Agriculture and Wine, Waite Camp., Univ. Adelaide, Glen O., Australia
Facilitators :
From page:
279
To page:
285
(
Total pages:
7
)
Abstract:
Four regions covering 1247 nucleotides of the RNA genome of 20 isolates of a Vitivirus, Grapevine virus B (GVB), from three countries were analyzed. All the regions in these isolates varied in sequence as compared to the published GVB sequence. Of these, the intergenic region varied the most, with 73.2% nucleotide sequence homology, while ORF4 encoding coat protein varied the least when compared both at nucleotide sequence (80.3% homology) and at amino acid sequence levels (90.6% homology). The variations were scattered along each region length and were higher at the nucleotide level than at the amino acid level, but none resulted in a frame shift or stop codon. These results indicate that GVB may exist as a heterogeneous population, possibly resulting from mixing different strains by grafting practices or by RNA-RNA recombination in the grapevine, the only known natural host of this virus. Although it has been reported that GVB is associated with corky bark disease, no corky bark symptoms were observed in any of the GVB positive grapevine sample collected from Australia.
Note:
Related Files :
Australia
Grapevine virus B
Israel
Italy
Plant Disease
Plant Diseases
RNA viruses
stop codon
Vitis
Show More
Related Content
More details
DOI :
10.1023/B:VIRU.0000036388.41242.c1
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
29402
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:46
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Scientific Publication
Extensive variation of sequence within isolates of grapevine virus B +
29
Shi, B.-J., Waite Diagnostics, School of Agriculture and Wine, Waite Camp., Univ. Adelaide, Glen O., Australia
Habili, N., Waite Diagnostics, School of Agriculture and Wine, Waite Camp., Univ. Adelaide, Glen O., Australia
Gafny, R., Institute of Plant Protection, Agricultural Research Organization, Volcani Ctr., P.O.Box 6, Bet D., Israel
Symons, R.H., Waite Diagnostics, School of Agriculture and Wine, Waite Camp., Univ. Adelaide, Glen O., Australia
Extensive variation of sequence within isolates of grapevine virus B +
Four regions covering 1247 nucleotides of the RNA genome of 20 isolates of a Vitivirus, Grapevine virus B (GVB), from three countries were analyzed. All the regions in these isolates varied in sequence as compared to the published GVB sequence. Of these, the intergenic region varied the most, with 73.2% nucleotide sequence homology, while ORF4 encoding coat protein varied the least when compared both at nucleotide sequence (80.3% homology) and at amino acid sequence levels (90.6% homology). The variations were scattered along each region length and were higher at the nucleotide level than at the amino acid level, but none resulted in a frame shift or stop codon. These results indicate that GVB may exist as a heterogeneous population, possibly resulting from mixing different strains by grafting practices or by RNA-RNA recombination in the grapevine, the only known natural host of this virus. Although it has been reported that GVB is associated with corky bark disease, no corky bark symptoms were observed in any of the GVB positive grapevine sample collected from Australia.
Scientific Publication
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