Apomictic parthenogenesis in a parasitoid wasp Meteorus pulchricornis, uncommon in the haplodiploid order Hymenoptera

• Tsutsui, Yoko

• 前藤, 薫

• Hamaguchi, Keiko

• Isaki, Yosuke

• 高見, 泰興

• Naito, Tikahiko

• Miura, Kazuki

抄録

Although apomixis is the most common form of parthenogenesis in diplodiploid arthropods, it is uncommon in the haplodiploid insect order Hymenoptera. We found a new type of spontaneous apomixis in the Hymenoptera, completely lacking meiosis and the expulsion of polar bodies in egg maturation division, on the thelytokous strain of a parasitoid wasp Meteorus pulchricornis (Wesmael) (Braconidae, Euphorinae) on pest lepidopteran larvae Spodoptera litura (Fabricius) (Noctuidae). The absence of the meiotic process was consistent with a non-segregation pattern in the offspring of heterozygous females, and no positive evidence was obtained for the induction of thelytoky by any bacterial symbionts. We discuss the conditions that enable the occurrence of such rare cases of apomictic thelytoky in the Hymenoptera, suggesting the significance of fixed heterosis caused by hybridization or polyploidization, symbiosis with bacterial agents, and occasional sex. Our finding will encourage further genetic studies on parasitoid wasps to use asexual lines more wisely for biological control.

収録刊行物

• Bulletin of Entomological Research

  Bulletin of Entomological Research 104 (3), 307-313, 2014-06

  Cambridge University Press

キーワード

• apomixis
• thelytoky
• arrhenotoky
• automixis
• occasional sex
• clone

詳細情報

• CRID: 1050575520346820864
• NII論文ID: 120006510195
• ISSN: 14752670
• ISSN: 00074853
• HANDLE: 20.500.14094/90005175
• 本文言語コード: en
• 資料種別: journal article
• データソース種別:
  • IRDB
  • CiNii Articles