Abstract
A distinct sobemovirus was isolated from diseased Artemisia annua plants grown in experimental culture plots in Switzerland. Electron microscopy performed on extracts of leaf and root samples of a diseased A. annua plant revealed icosahedral-30 nm viral particles. The complete nucleotide sequence of the viral genome was determined. The single positive-strand RNA of 4138 nt encodes four open reading frames with an organization similar to that described for sobemoviruses. Phylogenetic analysis revealed a close relationship to ryegrass mottle virus. The virus was efficiently acquired by healthy A. annua from contaminated soil samples. “Artemisia virus A” is tentatively proposed as a name for this new candidate member of the unassigned genus Sobemovirus.
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Acknowledgment
The technical assistance of N. Dubuis, J. Brodard, and P.-H. Crausaz is gratefully acknowledged. We kindly acknowledge Dr. P. Vinciguerra for critical reading of the manuscript.
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Ramel, ME., Gugerli, P., Besse, S. et al. Molecular characterization of artemisia virus A, a new sobemovirus isolated from Artemisia annua . Arch Virol 158, 463–466 (2013). https://doi.org/10.1007/s00705-012-1507-4
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DOI: https://doi.org/10.1007/s00705-012-1507-4