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.

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

Genome composition
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 organization
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?
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
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 range of virion sizes encompassed by virus isolates described in the current VMR.

Host
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 family name
Items per page
Family Genome composition Genome organization Total genome size (kb or kbp) Envelope? Virion shape Virion size Host ICTV Report Chapter
Blumeviridae ssRNA(+) 1 linear segment 3.6–4.9 bacteria
Bornaviridae ssRNA(-) 1 linear segment 8.7–11.1 yes spherical 70–130 nm diameter vertebrates Bornaviridae
Botourmiaviridae ssRNA(+) 1 or 3 linear segments 1.6–5.3 no bacilliform or capsidless 32–60 nm long, 18 nm wide protists, fungi, plants Botourmiaviridae
Botybirnaviridae dsRNA 2 linear segments 11.0–12.5 no icosahedral 35–40 nm diameter fungi
Brachygtaviriformidae dsDNA multisegmented uncertain no head-tail 7 nm diameter head, 700–2000 nm long tail bacteria
Bromoviridae ssRNA(+) 3 linear segments 7.8–8.9 no icosahedral or bacilliform 26–35 nm diameter, or 18–26 nm diameter and 30–85 nm long plants Bromoviridae
Burtonviroviridae dsDNA 1 circular segment 29.7–29.8 protists
Caliciviridae ssRNA(+) 1 linear segment 6.4–8.3 no icosahedral 27–40 nm diameter vertebrates Caliciviridae
Carmotetraviridae ssRNA(+) 1 linear segment 6.1–6.2 icosahedral 40 nm diameter invertebrates
Casjensviridae dsDNA 1 linear segment 54.4–64.0 no head-tail 50–70 nm diameter head, 200–230 nm long tail bacteria
Caulimoviridae dsDNA-RT 1 circular segment 6.9–9.9 no spherical or bacilliform 45–50 nm diameter, or 30 nm diameter and 60–900 nm long plants Caulimoviridae
Cedratviridae dsDNA 1 circular segment 460.0–589.1 no ovoid 1000–1500 nm long, 500 nm wide protists
Chaacviridae dsDNA 1 segment 10.1–10.8 predicted icosahedral archaea
Chaseviridae dsDNA 1 linear segment 52.0–57.5 no head-tail 53–65 nm diameter head, 116–166 nm long tail bacteria Chaseviridae
Chimalliviridae dsDNA 1 segment 211.2–280.4 no head-tail variable, 100–200 nm diameter head, 150–250 nm long tail bacteria
Chrysoviridae dsRNA 3–7 linear segments 8.8–16.1 no icosahedral 40 nm diameter fungi, plants, invertebrates Chrysoviridae
Chuviridae ssRNA(-) 1–2 linear or circular segments 9.0–12.1 invertebrates, vertebrates Chuviridae
Circoviridae ssDNA(+/-) 1 circular segment 1.6–2.4 no predicted icosahedral invertebrates, vertebrates Circoviridae
Clavaviridae dsDNA 1 circular segment 5.2–5.3 no rigid rods 16 nm diameter, 140 nm long archaea Clavaviridae
Clermontviridae dsDNA 1 linear segment 37.6–37.7 predicted head-tail archaea
Closteroviridae ssRNA(+) 1–3 linear segments 13.0–19.3 no filamentous 12 nm diameter, 650–2200 nm long plants Closteroviridae
Coronaviridae ssRNA(+) 1 linear segment 25.4–36.7 yes pleomorphic, mostly spherical 80–160 nm diameter vertebrates Coronaviridae
Corticoviridae dsDNA 1 circular segment 10.0–10.6 no icosahedral 56 nm diameter bacteria Corticoviridae
Cremegaviridae ssRNA(+) 1 linear segment 14.9–17.8 vertebrates
Crepuscuviridae ssRNA(-) 1 linear segment 12.0–12.1 invertebrates Crepuscuviridae
Crevaviridae dsDNA 1 segment 83.4–95.9 predicted head-tail bacteria
Cruliviridae ssRNA(-) 3 linear segments 10.7–11.6 yes spherical 60–80 nm diameter invertebrates Cruliviridae
Curvulaviridae dsRNA 2 linear segments 3.7–4.3 no icosahedral 27 nm diameter fungi
Cystoviridae dsRNA 3 linear segments 12.6–15.0 yes spherical 85 nm diameter head bacteria Cystoviridae
Deltaflexiviridae ssRNA(+) 1 linear segment 7.7–8.3 fungi
Demerecviridae dsDNA 1 linear segment 101.6–138.0 no head-tail 70–90 nm diameter head, 150–160 nm long tail bacteria
Dicistroviridae ssRNA(+) 1 linear segment 8.0–10.5 no icosahedral 30 nm diameter invertebrates Dicistroviridae
Discoviridae ssRNA(-) 3 linear segments 6.3–9.7 fungi Discoviridae
Dishuiviroviridae dsDNA 1 circular segment 24.7–24.8 protists
Draupnirviridae ssDNA(+); ssDNA(+/-) 1 circular segment 1.5–5.3 invertebrates, vertebrates
Drexlerviridae dsDNA 1 linear segment 37.6–54.5 no head-tail 50–75 nm diameter head, 100–170 nm long tail bacteria
Druskaviridae dsDNA 1 linear segment 102.3–103.3 no head-tail 85 nm diameter head, 115 nm long tail archaea Druskaviridae
Duinviridae ssRNA(+) 1 linear segment 3.5–4.5 no icosahedral 25 nm diameter bacteria
Dumbiviridae ssRNA(+/-) 1 circular segment 4.2–5.0 fungi
Duneviridae dsDNA 1 linear segment 39.2–47.0 no head-tail 60 nm diameter head, 130 nm long tail bacteria
Ekchuahviridae dsDNA 1 segment 71.7–80.6 predicted head-tail archaea
Endolinaviridae ssDNA(+/-) 1 circular segment 2.6–3.2 protists
Endornaviridae ssRNA(+) 1 linear segment 9.6–17.7 capsidless protists, fungi, plants Endornaviridae
Euroniviridae ssRNA(+) 1 linear segment 24.6–29.4 invertebrates
Fervensviridae dsDNA 1 linear segment 31.2–31.3 no head-tail 50 nm diameter head, 150 nm long tail archaea
Fiersviridae ssRNA(+) 1 linear segment 3.2–5.1 no icosahedral 25–26 nm diameter bacteria
Filoviridae ssRNA(-) 1 linear segment 13.7–19.2 yes pleomorphic, mostly filamentous 80 nm diameter, 20–1000 nm long vertebrates Filoviridae
Fimoviridae ssRNA(-) 4–10 linear segments 11.6–18.9 yes spherical 80-150 nm diameter plants Fimoviridae
Finnlakeviridae ssDNA 1 circular segment 9.1–9.2 no icosahedral 60 nm diameter bacteria Finnlakeviridae
Flaviviridae ssRNA(+) 1 linear segment 8.5–13.3 yes spherical 40–60 nm diameter invertebrates, vertebrates Flaviviridae