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林业科学 ›› 2007, Vol. 43 ›› Issue (03): 133-137.doi: 10.11707/j.1001-7488.20070323

• 研究简报 • 上一篇    下一篇

栗瘿蜂体内Wolbachia的感染及其wsp基因序列分析

朱道弘 贺一原 赵吕权 黄向东 阳艳萍   

  1. 中南林业科技大学资源与环境学院,长沙410004
  • 收稿日期:2006-07-21 修回日期:1900-01-01 出版日期:2007-03-25 发布日期:2007-03-25

Sequencing and Phylogenetic Analysis of the wsp Gene of Wolbachia in a Gallwasp Species, Dryocosmus kuriphilus (Hymenoptera: Cynipidae)

Zhu Daohong,He Yiyuan,Zhao Lüquan,Huang Xiangdong,Yang Yanping   

  1. College of Resource and Environment, Central South University of Forestry & Technology Changsha 410004
  • Received:2006-07-21 Revised:1900-01-01 Online:2007-03-25 Published:2007-03-25

关键词: Wolbachia, wsp基因, 序列分析, 产雌孤雌生殖, 栗瘿蜂

Abstract:

Alpha proteobacteria of the genus Wolbachia are a widespread group of maternally inherited endosymbionts of arthropod and nematode hosts. Wolbachia infection induces a range of host phenotypes, including cytoplasmic incompatibility, male killing, feminization and thelytoky induction. Heterogony (cyclical parthenogenesis) is a remarkable characteristic of oak gall wasps, Cynipini, which is the largest tribe in Cynipidae. A few species of Cynipini are exceptionally,which are univoltine and exhibit thelytokous parthenogenesis, probably due to deletion of the arrhenotokous generation from their heterogonic ancestor species with Wolbachia infection. In this study, the presence of Wolbachia was detected using polymerase chain reaction (PCR) primers for the wsp genes in a thelytokous species (Dryocosmus kuriphilus) of the Cynipini. The wsp characteristic 617 bp product was obtained after amplification of extracts from Zhuzhou population. The sequence clearly conformed to Wolbachia group A and was nearly identical to that of Plagiotrochus quercusilicis. The possible implications of Wolbachia infection in the gallwasp are discussed.

Key words: Wolbachia, wsp gene, sequence analysis, thelytoky, Dryocosmus kuriphilus