研究论文

两种烟粉虱寄生蜂的雌性生殖系统结构与卵巢发育特点

  • 徐海云 ,
  • 杨念婉 ,
  • 万方浩
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  • 1. 中国农业科学院植物保护研究所, 植物病虫害生物学国家重点实验室, 北京 100193;
    2. 河北大学生命科学学院, 保定 071002;
    3. 中国农业科学院深圳农业基因组研究所, 深圳 518120
徐海云,博士,研究方向为入侵生物学与生物防治,电子信箱:xuhaiyun2013@126.com

收稿日期: 2014-10-14

  修回日期: 2014-12-23

  网络出版日期: 2015-05-04

基金资助

国家自然科学基金重点项目(30930062);国家自然科学基金青年基金项目(31301726);农业公益性行业科研专项(201303024);国家重点基础研究发展计划(973计划)项目(2013CB127605);《科技导报》博士生创新研究资助计划项目(kjdb2012005)

Female reproductive system and ovary development of two parasitoids of tobacco whitefly

  • XU Haiyun ,
  • YANG Nianwan ,
  • WAN Fanghao
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  • 1. State Key Laboratory for Biology of Plant Diseases and Insect Pests; Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China;
    2. College of Life Science, Hebei University, Baoding 071002, China;
    3. Agricultural Genome Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China

Received date: 2014-10-14

  Revised date: 2014-12-23

  Online published: 2015-05-04

摘要

通过对烟粉虱Bemisia tabaci Gennadius 的两种优势寄生蜂浅黄恩蚜小蜂Encarsia sophia Girault & Dodd 和海氏桨角蚜小蜂Eretmocerus hayati Zolnerowich & Rose 的生殖系统结构与卵巢发育特点的研究,明确了影响两种寄生蜂不同寄主处理行为的生理机制。两种寄生蜂雌性生殖系统各包括1 对卵巢、1 对侧输卵管、中输卵管、受精囊、产卵管和产卵鞘。浅黄恩蚜小蜂的产卵器细长笔直较锋利,海氏桨角蚜小蜂产卵器扁平且尖端向上弯曲,这与两种寄生蜂不同的产卵机制相吻合。浅黄恩蚜小蜂和海氏桨角蚜小蜂雌蜂初羽化时体内成熟卵子数量存在明显差异,但随着时间的推移和营养的补充,两种寄生蜂卵巢内成熟卵子的数量都会显著增加。两种寄生蜂均为卵育型寄生蜂。

本文引用格式

徐海云 , 杨念婉 , 万方浩 . 两种烟粉虱寄生蜂的雌性生殖系统结构与卵巢发育特点[J]. 科技导报, 2015 , 33(7) : 79 -83 . DOI: 10.3981/j.issn.1000-7857.2015.07.013

Abstract

The female reproductive system structures and ovary developmental traits of two parasitoids, Encarsia sophia (Girault & Dodd) and Eretmocerus hayati (Zolnerowich & Rose), of whitefly Bemisia tabaci (Gennadius) were studied to explain the differences of host handling strategies between these two parasitoid species. The female reproductive system of both En. sophia and Er. hayati each consisted of a pair of ovaries and lateral oviducts, common oviduct, spermatheca, ovipositor and ovipositor sheath. The ovipositor of En. sophia is straight and has an apparently hard and sharply pointed upper valve, while that of Er. hayati is curved, thick-walled, but has a blunt and apparently flexible tip. These features correlated well with the oviposition mechanisms of En. sophia and Er. hayati. Significant difference was found in the number of mature ova between En. sophia and Er. hayati when they emerged. The number of mature ova of both parasitoids increased with the age of adult female when the available nutrition was enough. Both En. sophia and Er. hayati are synovigenic.

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