ICTV Virus Taxonomy Profile: Nanoviridae

Author:

Thomas John E.1,Gronenborn Bruno2,Harding Robert M.3,Mandal Bikash4,Grigoras Ioana5,Randles John W.6,Sano Yoshitaka7,Timchenko Tania2,Vetten H. Josef8,Yeh Hsin-Hung9,Ziebell Heiko10,

Affiliation:

1. QAAFI, The University of Queensland, GPO Box 267, Brisbane, Queensland 4001, Australia

2. CNRS, Université Paris-Sud, CEA, 91190 Gif-sur-Yvette, France

3. Queensland University of Technology, GPO Box 2434, Brisbane, Queensland 4001, Australia

4. Division of Plant Pathology, Indian Agricultural Research Institute, New Delhi 110012, India

5. Université d'Evry Val d'Essonne, 91030 Evry, Ile-de-France, France

6. The University of Adelaide, Waite Campus, PMB Glen Osmond, SA 5064, Australia

7. Niigata University, 2-8050 Ikarashi, Niigata, 950-2181, Japan

8. Im Spargelfeld 1, 38162 Cremlingen, Germany

9. Taipei Agricultural Biotechnology Research Center, Academia Sinica, Taipei, 115, Taiwan, ROC

10. Julius Kühn-Institut, Messeweg 11-12, 38104 Braunschweig, Germany

Abstract

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.

Funder

Wellcome Trust

Publisher

Microbiology Society

Subject

Virology

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