Infectious hypodermal and hematopoietic necrosis
| Decapod penstylhamaparvovirus 1 | |
|---|---|
Virus classification 
| |
| (unranked): | Virus |
| Realm: | Monodnaviria |
| Kingdom: | Shotokuvirae |
| Phylum: | Cossaviricota |
| Class: | Quintoviricetes |
| Order: | Piccovirales |
| Family: | Parvoviridae |
| Genus: | Penstylhamaparvovirus |
| Species: | Decapod penstylhamaparvovirus 1
|
| Synonyms | |
|
Infectious hypodermal and hematopoietic necrosis virus | |
Infectious hypodermal and hematopoietic necrosis (IHHN) is a
The disease is caused by a single-stranded DNA virus of the species Decapod pestylhamaparvovirus 1, earlier known as IHHN virus, the smallest of the known penaeid shrimp viruses (22 nm).[2]
Virology
This virus has been classified as Penaeus stylirostris hamaparvovirus. The genome is 4.1 kilobases in length. There are three open reading frames in its genome:[3] a left non structural protein (NS1) of 2001 base pairs (bp), a mid non structural protein (NS2) of 1092 bp and a right capsid protein of 990 bp. NSI appears to be a DNA helicase with ATPase activity.
The mutation rate in the genome has been estimated to be ~1.4 x 10−4 substitutions/site/year.[4] This is considerably higher than the rate in the double stranded DNA viruses and similar to that found in RNA viruses. It is also similar to the rate found in other single stranded DNA viruses.
References
- ISBN 92-9044-563-7.
- ^ Gulf States Marine Fisheries Commission: Non-Native Species Summaries: Infectious Hypodermal and Hematopoietic Necrosis Virus (IHHNV) Archived 2005-05-28 at the Wayback Machine, 2003. Accessed June 30, 2005.
- ^ Rai P, Safeena MP, Karunasagar I, Karunasagar I (2011) Complete nucleic acid sequence of Penaeus stylirostris hamaparvovirus (PstDNV) from India. Virus Res 158(1-2):37-45
- ^ Robles-Sikisaka R, Bohonak AJ, McClenaghan LR Jr, Dhar AK (2010) Genetic signature of rapid IHHNV (infectious hypodermal and hematopoietic necrosis virus) expansion in wild Penaeus shrimp populations. PLoS One 5(7):e11799. Link
External links
Viral zone [1]
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