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  • Title: [Cloning and sequencing analysis of rice stripe virus genome segment 4 of Chinese isolate Y].
    Author: Qu Z, Shen D, Deng K, Lu Y, Li C, Hull R.
    Journal: Wei Sheng Wu Xue Bao; 1999 Feb; 39(1):36-42. PubMed ID: 12555399.
    Abstract:
    The cDNA fragment covering full-length sequence of RStV RNA4 of Yunnan isolate in China was obtained by RT-PCR. The PCR-derived fragment was then cloned into vector pCRII. The cloned cDNA was sequenced. Comparison of the nucleotide and deduced amino acid sequences with those of the Japanese isolate T was made. The results showed that at the nucleotides level, vORF, vcORF and the intergenic region had 94.9%, 94.1% and 86.1% identity respectively, the 5'-untranslational region was exactly the same as that of Japanese isolate T, while the 3'-terminal sequence had 96.1% identity, differing by two nucleotides; at the amino acid level, vORF and vcORF had 99.4% and 98.3% identity respectively. Therefore, as well as being exactly the same size for the two isolates, the amino acid sequences of the coding regions and the 5'- and 3'-terminal sequences were well conserved. Our results indicated that the Chinese isolate is closely related to the Japanese isolate T.
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