关于多社会黄蜂的父性倾斜的新见解
Sarah E Orr1, Nicole A Hedrick1, Kayla A Murray1
1Georgia Institute of Technology, School of Biological Sciences, Atlanta, Georgia, USA.
Insect science
|February 28, 2024
概括
在常见的东方黄衣黄蜂中,雌性表现出多方性,导致显著的父性倾斜和差异性种姓贡献. 这揭示了社会昆虫中生殖冲突在此前未被发现的作用.
科学领域:
- 行为生态学 行为生态学
- 进化生物学 进化生物学
- 社会昆虫 社会昆虫是一种社会昆虫.
背景情况:
- 在许多物种中,雌性与多个雄性交配的多性恋是常见的.
- 多妻制可以导致家庭内部的生殖冲突,特别是在社会昆虫群体中.
- 了解父性倾斜及其后果对于社会昆虫的进化至关重要.
研究的目的:
- 调查东方常见黄衣黄蜂 (Vespula maculifrons) 中的多性恋和父性倾斜的水平.
- 探索父权偏差和种姓生产 (工人与女王) 之间的关系.
- 检查父性偏差对后代形态学的潜在的表型后果.
主要方法:
- 收集了10个Vespula maculifrons殖民地.
- 用微卫星标记器确定父系的基因型工人和生殖前女王.
- 评估了父性倾斜,种姓贡献,并测量了来自不同父系的后代的形态特征.
主要成果:
- 在V. maculifrons殖民地的父系中观察到显著的父系偏差.
- 爱国者对工人和女王的生产有不同的贡献,这表明生殖冲突.
- 与历史数据相比,没有检测到多方体水平的显著变化;发现了父性倾斜与后代表型之间的微弱相关性.
结论:
- 这项研究是首次报告V. maculifrons.中显著的父权和种姓相关的偏差.
- 结果表明多合一性对昆虫社会遗传和社会结构产生重大影响.
- 生殖冲突在这种黄蜂物种的社会动态和进化中起着关键作用.
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