出典:Wiktionary
出典:『Wiktionary』 (2025/10/29 20:04 UTC 版)
polydnavirus (plural polydnaviruses)
出典:Wikipedia
出典:『Wikipedia』 (2011/04/20 19:41 UTC 版)
The Polydnaviruses (pronounced /pɒˈlɪdnəvaɪrəs/), (PDV) are a family of insect viruses that contain two genera: Ichnoviruses (IV) and Bracoviruses (BV). The ichnoviruses occur in ichneumonid wasps species and bracoviruses in braconid wasps. The genome of the virus is composed of multiple segments of double-stranded, superhelical DNA packaged in capsid proteins and a double layer (IV) or single layer (BV) envelope. Little or no sequence homology exists between BV and IV, suggesting that the two genera evolved independently.