Diploidy restoration in Wolbachia-infected Muscidifurax uniraptor (Hymenoptera: Pteromalidae)

Yuval Gottlieb, Einat Zchori-Fein, John H. Werren, Timothy L. Karr*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

55 Scopus citations


Thelytokous reproduction, where females produce diploid female offspring without fertilization, can be found in many insects. In some Hymenoptera species, thelytoky is induced by Wolbachia, a group of cytoplasmically inherited bacteria. We compare and contrast early embryonic development in the thelytokous parthenogenetic species Muscidifurax uniraptor with the development of unfertilized eggs of the closely related arrhenotokous species, Muscidifurax raptorellus. In the Wolbachia-infected parasitic wasp M. uniraptor, meiosis and the first mitotic division occur normally. Diploidy restoration is achieved following the completion of the first mitosis. This pattern differs in the timing of diploidy restoration from previously described cases of Wolbachia-associated thelytoky. Results presented here suggest that different cytogenetic mechanisms of diploidy restoration may occur in different species with Wolbachia-induced thelytoky.

Original languageAmerican English
Pages (from-to)166-174
Number of pages9
JournalJournal of Invertebrate Pathology
Issue number3
StatePublished - 1 Nov 2002

Bibliographical note

Funding Information:
This research was supported by research Grant US-2574-95C from BARD, the United States—Israel Binational Agricultural Research and Development Fund.


  • Gamete-duplication
  • Haploid-development
  • Parthenogenesis
  • Symbiosis
  • Thelytoky


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