Alphasatellites (family Alphasatellitidae) are circular, single-stranded DNA molecules (~1–1.4 kb) that encode a replication-associated protein and have commonly been associated with some members of the families Geminiviridae, Nanoviridae, and Metaxyviridae (recently established). Here, we provide a taxonomy update for the family Alphasatellitidae following the International Committee on Taxonomy of Viruses (ICTV) Ratification Vote held in March 2021. The taxonomic update includes the establishment of the new subfamily Petromoalphasatellitinae. This new subfamily includes three new genera as well as the genus Babusatellite, which previously belonged to the subfamily Nanoalphasatellitinae. Additionally, three new genera and 14 new species have been established in the subfamily Geminialphasatellitinae, as well as five new species in the subfamily Nanoalphasatellitinae.

Alphasatellites（Alphasatellitidae家族）是环状单链 DNA 分子（~1-1.4 kb），编码复制相关蛋白，通常与Geminiviridae、Nanoviridae和Metaxyviridae家族的一些成员相关（最近建立）。在2021 年 3 月举行的国际病毒分类委员会 (ICTV) 批准投票之后，我们在此提供了Alphasatellitidae家族的分类更新。分类更新包括新亚科Petromoalphasatellitinae的建立。这个新的亚科包括三个新属以及Babusatellite 属，以前属于纳米α卫星亚科。此外，还建立了双星亚科3个新属和14个新种，以及纳米卫星亚科5个新种。