Hytrosaviridae is a family of double stranded DNA viruses that infect infect insects. The name is derived from Hytrosa, sigla from the Greek Hypertrophia for 'hypertrophy' and 'sialoadenitis' for 'salivary gland inflammation.'

Description

The viruses in this family are non occluded, enveloped, rod-shaped virons measuring 500–1,000 nanometers (nm) in length and 50–100 nm in diameter. The virons contain at least 35 polypeptides which range in size from 10 to 200 kiloDalton

Dalton

Dalton may refer to:-In Canada:* Dalton, Algoma District, Ontario* Dalton Armoury, a Canadian Forces facility primarily used by the Queen's Own Rifles of Canada- In the United Kingdom :* Dalton, Cumbria, England* Dalton, Dumfries and Galloway, Scotland...

s.

The genome is a circular double stranded DNA molecule ranging in size from 120 to 190 kilobases. The G+C ratio varies between 28% and 44%.

Species in this family cause overt salivary gland hypertrophy symptoms in dipteran adults and partial to complete sterility.

Replication occurs in the nucleus

Nucleus

Nucleus may refer to:*Atomic nucleus, the very dense region at the center of an atom*Cell nucleus, the control center of a cell, which contains the cell's chromosomal DNA*Nucleus , a cluster of neurons in the central nervous system...

 of secretory epithelial cells of the salivary gland

Salivary gland

The salivary glands in mammals are exocrine glands, glands with ducts, that produce saliva. They also secrete amylase, an enzyme that breaks down starch into maltose...

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Transmission is either horizontally (per os) through feeding or vertically (transovarially) from mother to offspring.

Taxonomy

Two species are known in this family:

Glossina hytrosavirus

Musca hytrosavirus

One other species has tentatively been placed in this family:

Merodon equestris hytrosavirus