shotokuvirae shotokuvirae shotokuvirae is a kingdom of viruses. shotokuvirae virus classification (unranked): virus realm: monodnaviria kingdom: shotokuvirae subtaxa see text nomenclature the kingdom, shotokuvirae, was named after japan's empress shotoku (718-770 ad), 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. taxonomy the following phyla are recognized: cossaviricota cressdnaviricota