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- Title
Complete nucleotide sequences of attenuated and severe isolates ofLeek yellow stripe virusfrom garlic in northern Japan: Identification of three distinct virus types in garlic and leek world-wide.
- Authors
Takaki, F.; Sano, T.; Yamashita, K.; Fujita, T.; Ueda, K.; Kato, T.
- Abstract
We have determined the complete nucleotide sequence of three isolates (two severe and one attenuated) of the potyvirusLeek yellow stripe virus(LYSV), the main causal agent of the garlic mosaic disease that is prevalent in Aomori prefecture, northern Japan. They contained 10,296-10,297 nucleotides and encoded a deduced polyprotein of 3,215 amino acids. Sequence variation among the three isolates was 1.5% at both the nucleotide and amino acid levels. Surprisingly, the sequences of all three isolates were quite different from that of recently described garlic isolate of LYSV from China. Sequence similarities among the 5'-UTR and P1 regions were only 56-57% and 52-53%, respectively, raising the possibility that these isolates may actually be distinct virus species. Phylogenetic analyses using 5'-UTR, P1 protein and coat protein revealed that all LYSV isolates described to date can be divided into three groups;i.e., those from leek, those from garlic in northern Japan, and those from garlic in southern Japan, China, and other parts of the world. The garlic isolates from northern Japan were more closely related to LYSV isolates from leek than to garlic isolates from southern Japan and China, suggesting a different origin for the garlic cultivars now cultivated in northern Japan.
- Subjects
JAPAN; NUCLEOTIDE sequence; PLANT viruses; GARLIC; ORGANIC acids; CULTIVARS
- Publication
Archives of Virology, 2005, Vol 150, Issue 6, p1135
- ISSN
0304-8608
- Publication type
Article
- DOI
10.1007/s00705-004-0482-9