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Genus of virus From Wikipedia, the free encyclopedia
Macronovirus is the only genus of the family Sarthroviridae and only contains the species Macrobrachium satellite virus 1[1]
Macronovirus | |
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Transmission electron micrographs of negatively-stained extra small virus species Macrobrachium satellite virus 1; bar = 50 nm | |
Virus classification | |
(unranked): | Virus |
Realm: | Riboviria |
Family: | Sarthroviridae |
Genus: | Macronovirus |
Species | |
|
It is found in The French West Indies, Thailand, Taiwan, China, and India.[2]
The genus name, Macronovirus, is a combination of Macro, from type species host Macrobrachium rosenbergii and no, from helper virus nodavirus.[2]
The family name, Sarthroviridae, is a combination of S, from Small and arthro, from host arthropoda.[3]
Macronovirus's cell tropism is muscle and connective cells of diseased animals, and its natural hosts are arthropods[3]
The virion Macrobrachium satellite virus 1 has a genome consisting of linear single-stranded RNA of positive polarity, 0.8kb in size, with two genes. This encodes two capsid proteins, CP-17 and CP-16. The virion is non-enveloped, spherical, with a capsid of about 15 nm with icosahedral symmetry. The virion is constructed from two capsid proteins CP-17 and CP-16. It has a Monopartite, linear, ssRNA(+) genome.[2]
The virion RNA is infectious and serves as both the genome and viral messenger RNA.[2]
Its replication is cytoplasmic, and has 8 steps.[2]
Whitish muscle disease, which develops in post-larvae of freshwater prawn Macrobrachium rosenbergii and is caused by Macrobrachium rosenbergii nodavirus (MrNV) and its associate Macrobrachium satellite virus 1. Main symptom is a whitish appearance of the muscles, particularly noticeable in the abdomen. Mortalities can reach 100%.[2]
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