ShotokuviraeShotokuvirae is a kingdom of viruses.NomenclatureThe kingdom, Shotokuvirae, was named after Japan's Empress Shotoku, who reigned over Japan twice, first as Empress Koken and later as Empress Shotoku, and who created the world's earliest written record of a plant virus disease, which was a poem to her followers about a geminivirus eupatorium yellow vein virus infection of a eupatorium plant, which she had described as having turned yellow.TaxonomyThe following phyla are recognized:CommensaviricotaCossaviricota''Cressdnaviricota''