Plant viruses and viroids in Japan
2022
Fuji, Shin-ichi | Mochizuki, Tomofumi | Okuda, Mitsuru | Tsuda, Shinya | Kagiwada, Satoshi | Sekine, Ken-Taro | Ugaki, Masashi | Natsuaki, Keiko T. | Isogai, Masamichi | Maoka, Tetsuo | Takeshita, Minoru | Yoshikawa, Nobuyuki | Mise, Kazuyuki | Sasaya, Takahide | Kondo, Hideki | Kubota, Kenji | Yamaji, Yasuyuki | Iwanami, Toru | Ohshima, Kazusato | Kobayashi, Kappei | Hataya, Tatsuji | Sano, Teruo | Suzuki, Nobuhiro
An increasing number of plant viruses and viroids have been reported from all over the world due largely to metavirogenomics approaches with technological innovation. Herein, the official changes of virus taxonomy, including the establishment of megataxonomy and amendments of the codes of virus classification and nomenclature, recently made by the International Committee on Taxonomy of Viruses were summarized. The continued efforts of the plant virology community of Japan to index all plant viruses and viroids occurring in Japan, which represent 407 viruses, including 303 virus species and 104 unclassified viruses, and 25 viroids, including 20 species and 5 unclassified viroids, as of October 2021, were also introduced. These viruses and viroids are collectively classified into 81 genera within 26 families of 3 kingdoms (Shotokuvirae, Orthornavirae, Pararnavirae) across 2 realms (Monodnaviria and Riboviria). This review also overviewed how Japan’s plant virus/viroid studies have contributed to advance virus/viroid taxonomy.
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