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First report of Tobacco vein banding mosaic virus infecting sesame in China.

Wang, H. Y. ; Gong, H. H. ; Yan, Z. Y. ; Tang, W. ; Zhu, T. S. ; Zhao, M. ; Li, X. D.

Plant Disease 2017 Vol 101 No. 5 pp. 850;

Abstract

In the summer of 2016, a series of field surveys were conducted in Zhangqiu, Shandong Province, China, to investigate the viruses infecting sesame. Sesame plants (cv. Zhongzhi No. 11) showing symptoms of mosaic, etiolation, shoestring, and puckering were found in several fields at incidences of 20-35%. Young leaves of 5 symptomatic plants were collected for total RNA extraction. BLAST searches of homologous sequences identified three potyviruses, Watermelon mosaic virus (WMV), Bean common mosaic virus (BCMV) and Tobacco vein banding mosaic virus (TVBMV). WMV and BCMV have already been reported to infect sesame in China. The existence of TVBMV in sesame samples was further confirmed by RT-polymerase chain reaction, phylogenetic and Western blot analyses. TVBMV has been reported to infect tobacco, potato, Datura stramonium, wild aubergine (Solanum torvum) and tomato in China. This is thought to be the first report that TVBMV can naturally infect sesame in China.