The family Smacoviridae (order Cremevirales, class Arfiviricetes, phylum Cressdnaviricota) is comprised of viruses with small circular single-stranded DNA genomes of ~2.3-3 kb in length that have primarily been identified in fecal sample of various animals. Smacovirus genomes carry two genes in ambisense orientation encoding a capsid protein and a rolling-circle replication initiation protein, respectively. We have revised the taxonomy of the family by assigning 138 new genomic sequences deposited in GenBank to already established taxa as well as 41 new species and six new genera. Furthermore, we have adopted binomial species nomenclature, conforming to the "Genus + freeform epithet" format for all 84 species from 12 genera. The updated Smacoviridae taxonomy presented in this article has been ratified by the International Committee on Taxonomy of Viruses (ICTV).

中文翻译：

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2021 年 Smacoviridae 科的分类更新。

Smacoviridae 科（Cremevirales，Arfiviricetes 类，Cressdnaviricota 门）由具有约 2.3-3 kb 长度的小型环状单链 DNA 基因组的病毒组成，这些基因组主要在各种动物的粪便样本中得到鉴定。Smacovirus 基因组携带两个基因，分别编码衣壳蛋白和滚环复制起始蛋白。我们通过将存放在 GenBank 的 138 个新基因组序列分配给已建立的分类群以及 41 个新物种和 6 个新属，修改了该科的分类法。此外，我们采用了二项式物种命名法，符合 12 个属的所有 84 个物种的“属 + 自由形式加词”格式。