ICTV Virus Taxonomy Profile: Hadakaviridae 2023
Yukiyo Sato, Massimo Turina, Sotaro Chiba, Ryo Okada, Muhammad Faraz Bhatti, Ioly Kotta‐Loizou, R. H. A. Coutts, Hideki Kondō, Sead Sabanadzovic, Nobuhiro Suzuki
Abstract
The family Hadakaviridae , including the genus Hadakavirus , accommodates capsidless viruses with a 10- or 11-segmented positive-sense (+) RNA genome. Currently known hosts are ascomycetous filamentous fungi. Although phylogenetically related to polymycovirids with a segmented double-stranded RNA genome and certain encapsidated picorna-like viruses, hadakavirids are distinct in their lack of a capsid (‘hadaka’ means naked in Japanese) and their consequent inability to be pelleted by conventional ultracentrifugation; they show ribonuclease susceptibility in host tissue homogenates. This is a summary of the International Committee on Taxonomy of Viruses (ICTV) Report on the family Hadakaviridae, which is available at ictv.global/report/hadakaviridae.