Istituto per la Protezione Sostenibile delle Piante, Consiglio Nazionale delle Ricerche, Bari 70126, Italy.
State Key Laboratory of Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China.
J Gen Virol. 2018 May;99(5):611-612. doi: 10.1099/jgv.0.001045. Epub 2018 Mar 26.
Members of the family Avsunviroidae have a single-stranded circular RNA genome that adopts a rod-like or branched conformation and can form, in the strands of either polarity, hammerhead ribozymes involved in their replication in plastids through a symmetrical RNA-RNA rolling-circle mechanism. These viroids lack the central conserved region typical of members of the family Pospiviroidae. The family Avsunviroidae includes three genera, Avsunviroid, Pelamoviroid and Elaviroid, with a total of four species. This is a summary of the ICTV Report on the taxonomy of the family Avsunviroidae, which is available at http://www.ictv.global/report/avsunviroidae.
Avsunviroidae 科的成员具有单链环状 RNA 基因组，采用棒状或分支构象，并能在任一条链的极性上形成涉及它们在质体中通过对称的 RNA-RNA 滚环机制进行复制的锤头核酶。这些类病毒缺乏 Pospiviroidae 科成员所具有的中央保守区。Avsunviroidae 科包括三个属，即 Avsunviroid、Pelamoviroid 和 Elaviroid，共有四个种。这是 ICTV 关于 Avsunviroidae 科分类的报告摘要，可在 http://www.ictv.global/report/avsunviroidae 上查阅。
