Molecular diversity of tobacco vein banding mosaic virus |
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| Authors: | Y-P Tian J-L Liu X-Q Yu L-P Lei X-P Zhu J P T Valkonen X-D Li |
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| Institution: | (1) Department of Plant Pathology, College of Plant Protection, Shandong Agricultural University, Tai’an, People’s Republic of China;(2) Genetics Center, Department of Plant Biology and Forest Genetics, Swedish University of Agricultural Sciences, Uppsala, Sweden;(3) Yunnan Tobacco Institute, Yuxi, People’s Republic of China;(4) Department of Applied Biology, University of Helsinki, Finland |
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| Abstract: | Summary Tobacco vein banding mosaic virus (TVBMV) is of increasing importance in tobacco production on the Chinese mainland. The 3′-terminal
genomic sequences (1624 nucleotides) of 12 TVBMV isolates from China were determined and compared to the sequences of only
four TVBMV isolates available in databanks. The results revealed that TVBMV consists of several phylogenetically distinguishable
strains that show a degree of correlation with the geographical origin. Two isolates from Yunnan had a unique putative NIb/CP
proteolytic cleavage site of Q/N that is uncommon for potyviruses, whereas other TVBMV isolates had the more typical Q/G amino
acids at that site. One isolate (ZB6) from Zibo, Shandong Province, was predicted to have experienced recombination within
the characterized genomic region.
First two authors contributed equally. |
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