Two Types of Grapevine Yellow Speckle Viroid 1 Isolated from Commercial Grapevine Had the Nucleotide Sequence of Yellow Speckle Symptom-inducing Type |
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Authors: | Teruo SANO Tetsuya KOBAYASHI Akira ISHIGURO Yoshie MOTOMURA |
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Institution: | (1) Laboratory of Phytopathology, Faculty of Agriculture and Life Science, Hirosaki University, Hirosaki 036-8561, Japan , JP;(2) Laboratory of Science of Bioproducts, Faculty of Agriculture and Life Science, Hirosaki University, Hirosaki 036-8561, Japan, JP |
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Abstract: | Grapevine yellow speckle viroid 1 (GYSVd 1) was first detected in Japan from commercial grapevines. The viroid seems to be
spreading in Japanese commercial vineyards but without causing noticeable disease symptoms. Two Japanese GYSVd 1 isolates
from the cultivars Campbell and Steuben were sequenced. The Campbell isolate is included in the type 2 variant of GYSVd 1,
and the Steuben isolate is included in the type 3. Both of the isolates were grouped into the yellow speckle-inducing variants
in the nucleotide sequence ; however, the etiological importance of this viroid on the viticulture of Japan has not yet been
determined.
Received 14 June 1999/ Accepted in revised form 25 August 1999 |
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Keywords: | : grapevine yellow speckle viroid symptom-inducing type |
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