The viruses assigned to the subfamily form a monophyletic clade in well-supported Maximum Likelihood or Maximum Clade Credibility trees using full-length L sequences. The subfamily includes eleven genera for viruses detected in insects, nematode worms or crustaceans.
Viruses assigned to the genus Margarhavirus form a distinct monophyletic group based on well-supported Maximum Likelihood or Maximum Clade Credibility trees inferred from complete L sequences. Chemarfal virus 1 (CHMFV1; species Margarhavirus chemarfal), currently the only virus assigned to the genus, was detected in a freshwater mussel.
Virion morphology is unknown.
Viruses assigned to the genus Uniorhavirus form a distinct monophyletic group based on well-supported Maximum Likelihood or Maximum Clade Credibility trees inferred from complete L sequences. Killamcar 1 virus 1 (KILLV1; species Uniorhavirus killamcar), currently the only virus assigned to the genus, was detected in a freshwater mollusc.
Virion morphology is unknown.
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