The family Marnaviridae comprises small non-enveloped viruses with positive-sense RNA genomes of 8.6–9.6 kb. Isolates infect marine single-celled eukaryotes (protists) that come from diverse lineages. Some members are known from metagenomic studies of ocean virioplankton, with additional unclassified viruses described from metagenomic datasets derived from marine and freshwater environments. This is a summary of the International Committee on Taxonomy of Viruses (ICTV) Report on the family Marnaviridae, which is available at ictv.global/report/marnaviridae.

中文翻译：

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ICTV 病毒分类概况：Marnaviridae 2021

Marnaviridae家族包括具有 8.6-9.6 kb 的正链 RNA 基因组的小型无包膜病毒。分离株感染来自不同谱系的海洋单细胞真核生物（原生生物）。一些成员是从海洋浮游病毒的宏基因组研究中得知的，其他未分类的病毒来自海洋和淡水环境的宏基因组数据集。这是国际病毒分类委员会 (ICTV) 关于Marnaviridae科的报告的摘要，可在 ictv.global/report/marnaviridae 获取。