Polydnaviridae
Polydnaviridae (pronounced: pol-ee-dna-vi-ruh-dee) is a family of viruses that are symbiotically associated with some species of parasitoid wasps. The name "Polydnaviridae" is derived from the Greek words "poly" meaning many, and "dna" referring to the type of genetic material these viruses possess.
Etymology
The term "Polydnaviridae" is a combination of the Greek word "poly", meaning "many", and "dna", referring to the type of genetic material these viruses possess. The suffix "-viridae" is used in the naming of virus families and is derived from the Latin "viridae" meaning "green", which is often used to denote something that is new or immature, reflecting the nature of viruses as they are not considered fully living organisms.
Characteristics
Members of the Polydnaviridae family are unique among viruses due to their symbiotic relationship with parasitoid wasps. These viruses are integrated into the wasp's genome and are essential for the wasp's reproduction. The virus particles are produced in the wasp's ovaries and are injected into the host insect along with the wasp's eggs. The viruses suppress the host's immune system and alter its development, allowing the wasp's larvae to survive and develop within the host.
Classification
Polydnaviridae is divided into two genera: Bracoviruses and Ichnoviruses, based on their association with different groups of wasps. Bracoviruses are associated with braconid wasps, while Ichnoviruses are associated with ichneumonid wasps.
Related Terms
External links
- Medical encyclopedia article on Polydnaviridae
- Wikipedia's article - Polydnaviridae
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