show Abstracthide AbstractPolydnaviruses (PDVs) are a group of insect double stranded DNA viruses and symbiotically associated with host endoparasitoid wasps. Their segmented genome is located in host chromosome(s) in a proviral form. Viral replication is initiated at the ovary during late pupal stages. Little is known about the factors involved in the viral replication. First, this study showed the proviral rapture of Cotesia plutellae bracoviruse (CpBV) by indentifying neighboring host wasp sequences. Then this study analyzed the ovarian transcripts of an endoparasitoid was, Cotesia plutellae, by 454 pyrosequencing and subsequent gene annotation.