Anelloviruses are small negative-sense single-stranded DNA viruses with genomes ranging in size from 1.6 to 3.9 kb. The family Anelloviridae comprised 14 genera before the present changes. However, in the last five years, a large number of diverse anelloviruses have been identified in various organisms. Here, we undertake a global analysis of mammalian anelloviruses whose full genome sequences have been determined and have an intact open reading frame 1 (ORF1). We established new criteria for the classification of anelloviruses, and, based on our analyses, we establish new genera and species to accommodate the unclassified anelloviruses. We also note that based on the updated species demarcation criteria, some previously assigned species (n = 10) merge with other species. Given the rate at which virus sequence data are accumulating, and with the identification of diverse anelloviruses, we acknowledge that the taxonomy will have to be dynamic and continuously evolve to accommodate new members.

指环病毒是小的负义单链 DNA 病毒，基因组大小从 1.6 到 3.9 kb。线虫科现变前共有14属。然而，在过去五年中，已经在各种生物体中鉴定出大量不同的指环病毒。在这里，我们对其全基因组序列已确定并具有完整开放阅读框 1 (ORF1) 的哺乳动物指环病毒进行了全球分析。我们为指环病毒的分类建立了新的标准，并且根据我们的分析，我们建立了新的属和种以适应未分类的指环病毒。我们还注意到，根据更新的物种划分标准，一些先前指定的物种（n = 10）与其他物种合并。鉴于病毒序列数据的积累速度，以及各种指环病毒的鉴定，