Virus Properties by Family

Columns in the table with blue text headers can be sorted by clicking on the header text. Clicking twice will reverse the sort order.

Column 1
A numerical designation is provided for each indicated taxonomic family. This number is not persistent and will vary according to the settings of the selection filter. It  provides a means of counting the number of families matching the filters.

Family (sortable)
This column lists the virus families that are recognized in the current Master Species List (MSL).

Genera (sortable)
The number of genera present in the indicated family.

Species (sortable)
The number of species present in the indicated family.

Genome (sortable)
This column describes the chemical nature of the genome (DNA or RNA) and whether it is double-stranded (ds) or single stranded (ss). The suffix -RT indicates that reverse transcription is involved in the replication of the genome.

For ss genomes, the polarity of the genome is indicated: (+), mRNA polarity; (-), complementary to mRNA; (+/-), ambisense. At the family level, viruses with segmented genomes may have segments with different polarities (e.g., some arenaviruses have only ssRNA(-), others have ssRNA(-) and ssRNA(+/-) segments. In this case, the genome composition is designated as ssRNA(-); ssRNA(+/-) to indicate that both forms can be found in the genome.

Genome topology (sortable)
This column indicates if the genome is a linear or circular molecule and the number of segments

Total genome size (kb or kbp)
This column indicates the range of sizes encompassed by genomes of virus isolates described in the current Virus Metadata Resource (VMR).

Envelope (sortable)
This column indicates if the virion is known to have, or not have, a lipid envelope. A value of "Yes or No" indicates the variable presence of an envelope. Viruses identified only by metagenomics will usually not have a value in this column (envelope is "not determined").

Virion shape (sortable)
This column indicates the shape of the virion, as seen by electron microscopy. The column also includes some predicted morphologies but does not include information for many viruses identified only by metagenomics.

Virion size
This column indicates the typical range of virion sizes encompassed by virus isolates described in the current VMR.

Host (sortable)
This column indicates the known host(s) of viruses in the family. Hosts are uncertain for many viruses, especially those described by metagenomic analysis of environmental samples. The term protist is used to mean any eukaryotic organism that is not an animal, plant or fungus.

ICTV Report Chapter
This column provides a link to the relevant ICTV online report chapter.

Display families with the following properties:

Enter any part of a taxon name at the rank of family or higher to return the matching family names in that hierarchy
Family Genera Species Genome Genome topology Genome size (kb/kbp) Envelope Virion shape Virion size Host ICTV Report Chapter
151 Hodgkinviridae 5 21 dsDNA 1 linear segment 52.6-56.1 no head-tail 70 nm diameter head, 150 nm long tail bacteria
152 Huangdiviridae 1 1 dsDNA 1 linear segment 26.6 predicted spindle-shaped predicted archaea
153 Hydriviridae 1 1 dsDNA 1 circular segment 1599.7-1599.8 predicted yes predicted ovoid soil (S)
154 Hypoviridae 8 39 ssRNA(+) 1 linear segment 7.3-18.4 capsidless fungi, invertebrates Hypoviridae
155 Hytrosaviridae 2 2 dsDNA 1 circular segment 124.2-190.1 yes rod-shaped 65-100 nm wide, 550-1000 nm long invertebrates Hytrosaviridae
156 Iflaviridae 1 16 ssRNA(+) 1 linear segment 8.8-11.0 no icosahedral 22-30 nm diameter invertebrates Iflaviridae
157 Inoviridae 26 52 ssDNA(+); ssDNA(+/-) 1 circular segment 5.2-10.9 no filamentous 7 nm diameter, 600-2500 nm long bacteria Inoviridae
158 Inseviridae 1 16 dsRNA 1 linear segment 5.3-6.6 no icosahedral 30 nm diameter invertebrates Inseviridae
159 Intestiviridae 12 19 dsDNA 1 segment 89.7-98.1 no head-tail 80 nm diameter head, 40 nm long tail bacteria
160 Iridoviridae 7 22 dsDNA 1 linear segment 102.6-288.9 yes or no icosahedral 150-220 nm diameter invertebrates, vertebrates Iridoviridae
161 Itzamnaviridae 2 2 dsDNA 1 segment 25.5-48.9 predicted spindle-shaped archaea
162 Jeanschmidtviridae 7 14 dsDNA 1 linear segment 207.2-356.3 no prolate head-tail 250-300 nm long and 50-100 nm wide head, 300 nm long tail bacteria
163 Kairosviridae 1 1 dsDNA 1 linear segment 34.1-34.2 predicted head-tail archaea
164 Kanorauviridae 24 89 ssDNA(+); ssDNA(+/-) 1 circular segment 1.7-4.0 predicted icosahedral plants, invertebrates, vertebrates
165 Kirkoviridae 10 12 ssDNA(+); ssDNA(+/-) 1 circular segment 2.8-4.3 predicted icosahedral vertebrates Kirkoviridae
166 Kitaviridae 3 14 ssRNA(+) 2-4 linear segments 12.0-15.4 yes pleomorphic, spherical and bacilliform 55-88 nm diameter or 25-70 nm wide and 55-120 nm long plants, invertebrates Kitaviridae
167 Kleczkowskaviridae 1 2 dsDNA 1 linear segment 206.8-207.7 no predicted head-tail bacteria
168 Kolmioviridae 11 21 ssRNA(-) 1 circular segment 1.5-1.8 yes spherical 36-43 nm diameter vertebrates Kolmioviridae
169 Konkoviridae 1 2 ssRNA(-) 4 linear segments 10.2-10.3 no filamentous 7-11 nm diameter, 300-1600 nm long plants Konkoviridae
170 Konodaiviridae 3 3 dsDNA 1 linear segment 56.8-57.7 predicted head-tail bacteria
171 Krittikaviridae 1 1 dsDNA 1 linear segment 79.9-80.0 no predicted head-tail archaea
172 Kruegerviridae 2 5 dsDNA 1 linear segment 84.5-87.6 no head-tail bacteria
173 Kunpengviridae 1 1 dsDNA 1 linear segment 35.7-35.8 no predicted head-tail archaea
174 Kyanoviridae 54 66 dsDNA 1 linear segment 144.3-252.5 no diverse head-tail 60 nm diameter head, 20 nm long tail 120 nm long and 60 nm wide head, 120 nm long tail 140 nm long and 75 nm wide head, 325 nm long tail bacteria
175 Lakviridae 3 7 dsDNA 1 linear segment 476.0-548.0 no predicted head-tail bacteria
176 Lebotiviridae 1 8 dsRNA 1 linear segment 6.7-8.1 no icosahedral 40 nm diameter invertebrates Lebotiviridae
177 Leishbuviridae 1 11 ssRNA(-) 3 linear segments 6.9-10.4 protists Leishbuviridae
178 Leisingerviridae 1 1 dsDNA 1 linear segment 26.1-26.2 no head-tail 55 nm diameter head, 210 nm long tail archaea Leisingerviridae
179 Lindbergviridae 10 67 dsDNA 1 linear segment 60.7-73.2 no head-tail 75 nm diameter, 140 nm long bacteria
180 Lipothrixviridae 3 10 dsDNA 1 linear segment 31.3-41.2 yes filamentous 24-38 nm diameter, 410-1950 nm long archaea Lipothrixviridae
181 Lispiviridae 30 45 ssRNA(-) 1 linear segment 6.4-15.7 predicted yes invertebrates Lispiviridae
182 Ludisviridae 1 1 dsDNA 1 linear segment 48.6-48.7 no predicted head-tail bacteria
183 Lutetiaviridae 1 1 dsDNA 1 linear segment 83.0-83.1 predicted head-tail archaea
184 Madisaviridae 1 1 dsDNA 1 linear segment 49.1-49.2 no head-tail 50 nm diameter head, 110 nm long tail archaea Madisaviridae
185 Madridviridae 1 2 dsDNA 1 linear segment 19.3-19.8 no prolate head-tail 65 nm long and 45 nm wide head, 20 nm long tail bacteria
186 Mahapunaviridae 11 31 ssDNA(+/-) 1 circular segment 1.9-2.5 predicted icosahedral plants, invertebrates, vertebrates
187 Malacoherpesviridae 2 2 dsDNA 1 linear segment 207.4-211.6 yes pleomorphic, mostly spherical 150-200 nm diameter invertebrates Malacoherpesviridae
188 Mamonoviridae 1 2 dsDNA 1 linear segment 362.8-381.3 no icosahedral 260 nm diameter protists
189 Marnaviridae 7 20 ssRNA(+) 1 linear segment 6.3-9.6 no icosahedral 22-35 nm diameter protists Marnaviridae
190 Marseilleviridae 2 4 dsDNA 1 circular segment 346.7-380.1 no icosahedral 190-250 nm diameter protists
191 Matonaviridae 1 3 ssRNA(+) 1 linear segment 9.6-9.8 yes pleomorphic, mostly spherical 50-90 nm diameter vertebrates Matonaviridae
192 Matsushitaviridae 1 2 dsDNA 1 circular segment 17.0-19.7 no icosahedral 130 nm diameter bacteria
193 Maviroviridae 1 1 dsDNA 1 circular segment 19.0-19.1 no icosahedral 50-60 nm diameter protists
194 Mayoviridae 2 4 ssRNA(+) 2 linear segments 7.6-9.3 no icosahedral 33 mn diameter plants Mayoviridae
195 Mazoviaviridae 1 1 dsDNA 1 linear segment 120.1-120.2 no head-tail 70 nm diameter head, 60 nm long tail bacteria
196 Medioniviridae 2 2 ssRNA(+) 1 linear segment 25.0-25.1 invertebrates
197 Megabirnaviridae 1 5 dsRNA 2 linear segments 13.9-17.0 no icosahedral 52 nm diameter fungi Megabirnaviridae
198 Megatotiviridae 1 2 dsRNA 1 linear segment 12.4-13.4 no icosahedral 50 nm diameter fungi
199 Mesomimiviridae 1 3 dsDNA 1 linear segment 437.2-473.6 no icosahedral 150 nm diameter protists
200 Mesoniviridae 4 14 ssRNA(+) 1 linear segment 18.9-21.0 yes spherical 60-120 nm diameter invertebrates