在卵寄生虫Telenomus remus中治疗诱导生 (PI) 的沃尔巴基亚诱导的生殖障碍
I-Cheng Tu1, Ching-Ting Lai1, Li-Hsin Wu1
1Department of Plant Medicine, National Pingtung University of Science and Technology, Neipu, Pingtung 912, Taiwan.
Biology
|February 12, 2026
概括
在Telenomus remus中Wolbachia感染导致生殖不相容性,而不是女性功能性处女. 杂交后代的性别比例在第二代部分恢复,这表明了线核不相容性.
科学领域:
- 微生物生态学 微生物生态学
- 无脊椎动物的病理学
- 生物控制 生物控制
背景情况:
- 沃尔巴基亚菌是无脊椎动物中的内共生细菌,诱导诸如帕氏生成之类的生殖变化.
- 被Wolbachia感染的Telenomus remus寄生虫表现出PI,影响性别比率.
- 已知从长期的Wolbachia共生生殖障碍,但它们在T. remus中的程度尚不清楚.
研究的目的:
- 在Wolbachia治愈后调查Telenomus remus中的生殖障碍.
- 区分女性功能性处女和其他生殖不相容性.
- 评估对使用T. remus.生物控制计划的影响.
主要方法:
- 沃尔巴希亚wRem被治愈从T.remus使用四环素治疗.
- 在治愈 (Wcure) 和自然未感染 (W-) 菌株之间进行了交叉实验.
- 在第一代和第二代杂交品种中分析了后代的性别比率和受精率.
主要成果:
- 治愈后的T. remus (Wcure) 保持了正常的生殖能力.
- 第一代杂交动物显示出明显的男性偏向后代 (94.3%和85.8%),表明生殖不相容.
- 第二代杂交动物的性别比率部分恢复 (14.3%和15.6%),这表明线粒细胞核不相容,而不是逐渐的功能衰退.
结论:
- 在T. remus中,生殖不相容与小核分歧有关,而不是女性功能性处女.
- 在F2杂交的部分恢复表明选择兼容性.
- 在生物控制中部署治愈的寄生虫菌株之前,评估生殖障碍是至关重要的.
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