Fujian Key Laboratory of Plant Virology, Institute of Plant Virology, Fujian Agriculture and Forestry University, Fuzhou 350002, Fujian, PR China; School of Life and Environmental Sciences, University of Sydney, Sydney, NSW 2006, Australia.
Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Key Laboratory of Tobacco Pest Monitoring, Controlling & Integrated Management, Qingdao 266101, Shandong, PR China.
Virology. 2019 Feb;528:110-117. doi: 10.1016/j.virol.2018.12.001. Epub 2018 Dec 27.
Tobacco mosaic virus (TMV) is widespread in China and causes considerable economic losses to tobacco production. The molecular epidemiology of this virus is, however, poorly understood. In this study, we sequenced the genomes of 51 TMV isolates from five tobacco-producing regions in China and investigated the dispersal patterns of this virus. Our phylogenetic analysis showed that TMV might have been introduced to China in the early 1900s, probably first to southwest China. However, TMV then moved to the north of the country, where it expanded. The north became the main seeding region for the subsequent movements of the virus within China. The north-to-south movement of TMV coincides with a shift of major tobacco-producing areas from north to south in this century, suggesting a link between human activities and the dispersal of TMV in China.
烟草花叶病毒（TMV）在中国广泛存在，给烟草生产造成了相当大的经济损失。然而，人们对这种病毒的分子流行病学知之甚少。在这项研究中，我们对来自中国五个烟草种植区的 51 个 TMV 分离株进行了基因组测序，并调查了该病毒的扩散模式。我们的系统发育分析表明，TMV 可能在 20 世纪初传入中国，可能首先传入中国西南部。然而，TMV 随后向北移动，并在那里扩张。北方成为该病毒在中国境内后续传播的主要播种区。TMV 的南北移动与本世纪主要烟草种植区从北向南的转移相吻合，这表明人类活动与 TMV 在我国的传播之间存在联系。
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