Transfer of a chromosomal Maverick to endogenous bracovirus in a parasitoid wasp
Transfer of a chromosomal Maverick to endogenous bracovirus in a parasitoid wasp
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DOI：
10.1007/s10709-011-9569-x
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发表时间：
2011-04-01
期刊：
影响因子：
1.5
通讯作者：
Drezen, J-M
中科院分区：
文献类型：
--
作者：
Dupuy, C.;Periquet, G.;Drezen, J-M
类寄生蜂利用bracovirus在鳞翅目寄主体内繁殖后代。在拟寄生物黄蜂中，bracovirus以原病毒的形式存在，整合在黄蜂的染色体中。病毒复制发生在黄蜂的卵巢中，并导致含有dsDNA环（片段）的颗粒的形成，这些颗粒在黄蜂产卵期间被注射到宿主体内。我们在寄生蜂臂状病毒中发现了一个大的DNA转座子Maverick。密切相关的元件存在于拟寄生蜂基因组中，表明CcBV中的元件对应于CcBV原病毒中内源性黄蜂Maverick的插入。Maverick在臂状病毒基因组中的存在表明转座子可能通过臂状病毒从拟寄生物转移到鳞翅目。
Bracoviruses are used by parasitoid wasps to allow development of their progeny within the body of lepidopteran hosts. In parasitoid wasps, the bracovirus exists as a provirus, integrated in a wasp chromosome. Viral replication occurs in wasp ovaries and leads to formation of particles containing dsDNA circles (segments) that are injected into the host body during wasp oviposition. We identified a large DNA transposon Maverick in a parasitoid wasp bracovirus. Closely related elements are present in parasitoid wasp genomes indicating that the element in CcBV corresponds to the insertion of an endogenous wasp Maverick in CcBV provirus. The presence of the Maverick in a bracovirus genome suggests the possibility of transposon transfers from parasitoids to lepidoptera via bracoviruses.