Nanoviridae is a family of plant viruses (nanovirids) whose members have small isometric virions and multipartite, circular, single-stranded (css) DNA genomes. Each of the six (genus Babuvirus) or eight (genus Nanovirus) genomic DNAs is 0.9–1.1 kb and is separately encapsidated. Many isolates are associated with satellite-like cssDNAs (alphasatellites) of 1.0–1.1 kb. Hosts are eudicots, predominantly legumes (genus Nanovirus), and monocotyledons, predominantly in the order Zingiberales (genus Babuvirus). Nanovirids require a virus-encoded helper factor for transmission by aphids in a circulative, non-propagative manner. This is a summary of the ICTV Report on the family Nanoviridae, which is available at ictv. global/ report/ Nanoviridae (Dr. Hsin Hung Yeh currently serves as a member in the Nanoviridae Study Group, International Committee on Taxonomy of Viruses).
Thomas, J.E., Gronenborn, B., Harding, R.M., Mandal, B., Grigoras, I., Randles, J.W., Sano, Y., Timchenko, T., H. Vetten, J., Yeh, H.H., Ziebell, H., and ICTV Report Consortium
(2021) ICTV Virus Taxonomy Profile: Nanoviridae
Journal of General Virology, doi: 10.1099/jgv.0.001544.
