The 3' terminal sequence of RNA1 of wheat spindle streak mosaic virus canadian isolate (WSSMV-C) |
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Authors: | Lu Xiaoyun Satoshi Kashiwazaki Masaru Tamura Shigetou Namba |
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Institution: | (1) Laboratory of Bioresource Technology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113, Japan;(2) National Agriculture Research Center, Tsukuba, Ibaraki, 305, Japan |
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Abstract: | The sequence of the 3 terminal 1722 nucleotides (nts) of RNA1 of the type (Canadian) isolate of wheat spindle streak mosaic bymovirus (WSSMV-C) was determined. The sequence started within a single open reading frame (ORF), which was expected to encode the carboxyl terminus of the nuclear inclusion b protein (NIb) and the capsid protein (CP) of 294 amino acids, followed by a 3 untranslated region (UTR) of 237 nucleotides. The NIb and CP of WSSMV-C share 99 and 100% amino acid sequence identity with the corresponding proteins of WSSMV-French isolate (WSSMV-F), but only 89 and 77% with wheat yellow mosaic virus (WYMV-J), respectively. The 3UTR of RNA1 of WSSMV-C shares 94% nucleotide sequence identity with that of WSSMV-F but only 73% with WYMV-J and WYMV-Chinese isolate (WYMV-Chi). The results support the classification of WSSMV-C and WSSMV-F as strains of the same virus species which is distinct from WYMV. |
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Keywords: | wheat spindle streak mosaic virus bymovirus RNA1 capsid protein gene |
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