RT Journal Article SR Electronic(1) A1 Sato, Yukiyo A1 Miyazaki, Naoyuki A1 Kanematsu, Satoko A1 Xie, Jiatao A1 Ghabrial, Said A. A1 Hillman, Bradley I. A1 Suzuki, Nobuhiro A1 ICTV Report ConsortiumYR 2019 T1 ICTV Virus Taxonomy Profile: Megabirnaviridae JF Journal of General Virology, VO 100 IS 9 SP 1269 OP 1270 DO https://doi.org/10.1099/jgv.0.001297 PB Microbiology Society, SN 1465-2099, AB Megabirnaviridae is a family of non-enveloped spherical viruses with dsRNA genomes of two linear segments, each of 7.2–8.9 kbp, comprising 16.1 kbp in total. The genus Megabirnavirus includes the species Rosellinia necatrix megabirnavirus 1, the exemplar isolate of which infects the white root rot fungus (Rosellinia necatrix) to which it confers hypovirulence. Megabirnaviruses are characterized by their bisegmented genome with large 5′-untranslated regions (1.6 kb) upstream of both 5′-proximal coding strand ORFs, and large protrusions on the particle surface. This is a summary of the ICTV Report on the family Megabirnaviridae, which is available at ictv.global/report/megabirnaviridae. This Profile is dedicated to the memory of our valued colleague Professor Said A. Ghabrial., UL https://www.microbiologyresearch.org/content/journal/jgv/10.1099/jgv.0.001297