Table 2.

Comparison of the most abundant taxa identified in selected polar viromes

Virome	Sample type	Most abundant families	Most abundant generaa	Reference
Antarctic soil comparison	Soil	Siphoviridae, Myoviridae, Podoviridae, Phycodnaviridae, Mimiviridae	Lambdavirus, T4virus, N4virus, Chlorovirus, Cafeteriavirus	This study
Antarctic soil and hypolith	Soil	Siphoviridae, Myoviridae, Podoviridae, Phycodnaviridae, Mimiviridae	Lambdavirus, T4virus, Epsilon15virus, Chlorovirus, Cafeteriavirus	[19]
Antarctic soil and hypolith	Hypolith	Siphoviridae, Myoviridae, Podoviridae, Phycodnaviridae, Mimiviridae	P70virus, T4virus, Sp6virus, Chlorovirus, Moumouvirus	[19]
Antarctic lithic niche GeoChip	Soil	Siphoviridae, Tectiviridae, Myoviridae, Podoviridae, Leviviridae, Microviridae	–	[46]
Lake Limnopolar (Antarctica) spring	Water	Circoviridae, Microviridae, Nanoviridae, Siphoviridae	Unclassified environmental ssDNA viruses, unclassified lambda-like viruses	[47]
Lake Limnopolar (Antarctica) summer	Water	Phycodnaviridae, Circoviridae, Mimiviridae, Myoviridae, Siphoviridae	Prasinovirus, Moumouvirus, unclassified ssDNA viruses, T4virus, E125virus	[47]
Antarctic meromictic lake	Water	Phycodnaviridae, Siphoviridae, Myoviridae, Podoviridae	-	[48]
Arctic cryoconite	Water	Siphoviridae, Myoviridae, Podoviridae, Phycodnaviridae, Mimiviridae	P70virus, T4virus, Bcep22virus, Chlorovirus, Moumouvirus	[74]
Arctic freshwater	Water	Circoviridae, Microviridae, Geminiviridae, Siphoviridae	-	[75]

^aThe first most abundant genus in the families in the previous column. Data from previous publications were extracted from MetaVir, where possible