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.
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Received 14 June 1999/ Accepted in revised form 25 August 1999
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SANO, T., KOBAYASHI, T., ISHIGURO, A. et al. Two Types of Grapevine Yellow Speckle Viroid 1 Isolated from Commercial Grapevine Had the Nucleotide Sequence of Yellow Speckle Symptom-inducing Type. J Gen Plant Pathol 66, 68–70 (2000). https://doi.org/10.1007/PL00012923
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DOI: https://doi.org/10.1007/PL00012923