沃尔巴基亚会影响寄生虫黄蜂中的雌性伴侣偏好和后代健康状况
Sara Amini1, Yaghoub Fathipour1, Ary Hoffmann2
1Department of Entomology, Tarbiat Modares University, Tehran, Iran.
Pest management science
|June 27, 2024
概括
沃尔巴基亚细菌改变了哈布罗布拉康虫的交配偏好. 受感染的雌性对年轻雄性失去偏好,影响后代的健康状况,并可能传播Wolbachia.
科学领域:
- 昆虫微生物学 昆虫微生物学
- 行为生态学 行为生态学
- 生殖生物学 生殖生物学
背景情况:
- 沃尔巴基亚菌是昆虫中广泛存在的细胞内细菌,影响宿主繁殖和潜在的交配行为.
- 这些细菌可以影响宿主后代的健康和交配策略.
- 寄生虫黄蜂Habrobracon hebetor是研究昆虫-宿主-微生物相互作用的模型系统.
研究的目的:
- 为了研究沃尔巴基亚对哈布罗布拉康河伯的雌性伴侣偏好的影响.
- 为了确定Wolbachia感染是否影响与年轻男性相比老男性交配的偏好.
- 评估Wolbachia感染对后代健康的后果,与男性年龄相关.
主要方法:
- 沃尔巴基亚感染和未感染的Habrobracon母之间的交配偏好的比较.
- 使用四环素治疗对Wolbachia感染状况的实验操纵.
- 测量到交配的时间,并评估后代的健康参数.
主要成果:
- 没有感染的雌性更喜欢与年轻的雄性交配,而感染Wolbachia的雌性没有表现出这种偏好.
- 在感染沃尔巴基亚的线条中,交配的速度更快.
- 与年轻雄性交配的后代表现出更高的健康状况,感染的雌性与感染的年轻雄性交配的后代表现最高.
结论:
- 沃尔巴基亚在Habrobracon hebetor中显著影响雌性伴侣偏好和后代健康.
- 这种影响沃尔巴基亚传播的机制仍未明确.
- 这些发现突出了微生物内生体和宿主生殖策略之间的复杂相互作用.
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