Polydnavirus genome segment families in the ichneumonid parasitoid Hyposoter fugitivus
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چکیده
منابع مشابه
Co-replication of a reovirus and a polydnavirus in the ichneumonid parasitoid Hyposoter exiguae.
A recently established colony of the ichneumonid parasitoid, Hyposoter exiguae, was found to carry both a reovirus (HeRV) and a polydnavirus (HePDV). Morphogenesis of these viruses was observed in all cells comprising the ovarian calyx epithelium, apparently without detrimental effect to the parasitoid. While polydnavirus replication in H. exiguae was restricted to the calyx region, HeRV was de...
متن کاملUnprecedented ichneumonid parasitoid wasp diversity in tropical forests.
The megadiverse parasitoid wasp family Ichneumonidae (Hymenoptera) is classically considered an exception to the extensively studied latitudinal diversity gradient: the majority of ichneumonid species are described from temperate regions. The gradient has been hypothesized to be dependent on the biology of the wasps, but recently questions of sampling and description biases have been raised. He...
متن کاملVisualization of polydnavirus sequences in a parasitoid wasp chromosome.
Polydnaviruses, obligatorily associated with endoparasitoid wasps, are unique in that their segmented genome is composed of multiple double-stranded DNA circles. We present here the first cytological evidence that virus segments are integrated in the wasp genome, obtained by using in situ hybridization of virus probes with viral sequences in the chromosomes of a wasp from the braconid family of...
متن کاملStage-dependent expression of Chelonus inanitus polydnavirus genes in the host and the parasitoid.
Chelonus inanitus (Braconidae) is a solitary egg-larval parasitoid of Spodoptera littoralis (Noctuidae). Along with the egg it also injects polydnaviruses (CiV) and venom, which are prerequisites for successful parasitoid development. CiV protects the parasitoid from encapsulation by the host's immune system and induces a developmental arrest in the prepupal stage. The polydnavirus genome consi...
متن کاملFate of polydnavirus DNA of the egg-larval parasitoid Chelonus inanitus in the host Spodoptera littoralis.
In situ hybridizations show that 5 min after parasitization, polydnavirus DNA is in close vicinity of the parasitoid egg, but 5 h later also in the yolk and partially in the host embryo. Fifteen hours after parasitization, the viral DNA is seen all over the host embryo and hardly in the yolk. The tissue distribution of the viral DNA was analysed and quantified by dot blots in the fifth instar p...
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ژورنال
عنوان ژورنال: Journal of Virology
سال: 1993
ISSN: 0022-538X,1098-5514
DOI: 10.1128/jvi.67.3.1340-1349.1993