由内生体相互作用介导的交配受体性在一个平分类三物种的内生体相互作用中介导
Amir H Tourani1, Alihan Katlav1, James M Cook1
1Hawkesbury Institute for the Environment, Western Sydney University, Locked Bag 1797, Penrith, New South Wales 2751, Australia.
Proceedings. Biological sciences
|October 29, 2024
概括
仅携带Cardinium内共生体的雌性囊避免与不兼容的Wolbachia感染的雄性交配,这表明内共生体特定的性选择可能会限制Wolbachia的传播.
科学领域:
- 进化生物学是进化的生物学.
- 昆虫繁殖行为 昆虫的繁殖行为
- 微生物共生是微生物的共生.
背景情况:
- 关节动物中母性遗传的内共生体可以诱导细胞质不相容性 (CI),导致特定交配组合的胚胎死亡.
- CI不成比例地影响感染的雄性与未感染的雌性交配,为宿主产生选择压力,以减轻或避免CI.
- 交配行为的变化,如变化的雌性受体性和再交配频率,是潜在的CI回避机制.
研究的目的:
- 为了研究与两个CI诱导的内共生体,Cardinium和Wolbachia相关的平分类三的交配行为特征.
- 确定内生生体存在是否影响雌性受体性和对不相容的雄性进行转嫁的行为.
主要方法:
- 研究了自然感染卡尔迪尼,沃尔巴基亚或两者的三的交配行为.
- 与不同内共生体感染状态的雄性相比,女性的受体性和转生概率.
- 评估了女性对兼容性与不兼容性交配伙伴的反应.
主要成果:
- 仅感染Cardinium的雌性对感染Cardinium和Wolbachia的雄性具有较低的感受能力.
- 没有内共生体的雌性对不相容的雄性没有减少受体.
- 与相容的男性相比,受卡丁感染的女性与不相容的男性再婚的可能性明显低.
结论:
- 发生内生生体特异性性选择,卡尔迪尼乌感染的雌性可能会在同感染的雄性中识别沃尔巴基亚,以避免CI.
- 这种识别机制可能会阻碍CI诱导的Wolbachia的传播.
- 由内生生体介导的交配行为对于理解CI动态和在害虫管理中的潜在应用至关重要.
相关概念视频
Yeast Signaling
14.4K
Yeasts are single-celled organisms, but unlike bacteria, they are eukaryotes (cells with a nucleus). Cell signaling in yeast is similar to signaling in other eukaryotic cells. A ligand, such as a protein or a small molecule released from a yeast cell, attaches to a receptor on the cell surface. The binding stimulates second-messenger kinases to activate or inactivate transcription factors that further regulate gene expression. Many of the yeast intracellular signaling cascades have similar...
14.4K
Symbiosis
27.5K
Symbiotic relationships are long-term, close interactions between individuals of different species that affect the distribution and abundance of those species. When a relationship is beneficial to both species, this is called mutualism. When the relationship is beneficial to one species but neither beneficial nor harmful to the other species, this is called commensalism. When one organism is harmed to benefit another, the relationship is known as parasitism. These types of relationships often...
27.5K


