概括
社会汗水蜜蜂,Lasioglossum zephyrum,通过阻止非巢友来保护它们的巢穴. 亲生繁殖揭示了蜜蜂更经常地识别和允许亲属进入,这表明一种遗传性气味识别系统.
科学领域:
- 行为生态学 行为生态学
- 昆虫的社会行为 昆虫的社会行为
- 化学生态化学生态学
背景情况:
- 原始的社会性汗水蜜蜂 (Lasioglossum zephyrum) 表现出领土行为,警卫阻巢穴入口.
- 了解亲属识别机制对于社会昆虫进化至关重要.
研究的目的:
- 为了研究在Lasioglossum zephyrum巢守护中的亲属识别的遗传基础.
- 确定亲属关系和非巢伴侣的接受之间的关系.
主要方法:
- 在实验室内繁殖Lasioglossum zephyrum殖民地,以创建具有不同关系系数的线条.
- 测试守护蜜蜂接受不同线条的非巢合者.
- 分析关系系数与接受率之间的相关性.
主要成果:
- 观察到关系系数与允许非巢伴侣通过的频率之间存在正线性关系.
- 守护蜜蜂更有可能允许具有更高亲属系数的个体进入巢穴.
结论:
- 在Lasioglossum zephyrum中对巢友的识别很可能是由遗传决定的气味和学习组件的组合介导的.
- 守护蜜蜂根据嗅觉线索区分亲属和非亲属,影响巢穴防御策略.
相关概念视频
01:20Physiology of Smell and Olfactory Pathway
Humans detect odors with the help of specialized cells located in the upper part of the nasal cavity, called olfactory receptor neurons (ORNs). ORNs possess hair-like structures called cilia, which are receptive to sensations from the inhaled air. When an odorant molecule binds to a specific receptor on the cell of the cilia, it leads to a series of events that ultimately cause the ORN to send electrical signals to the olfactory bulb in the brain through the olfactory nerves.
The olfactory...
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01:25Olfaction
The sense of smell is achieved through the activities of the olfactory system. It starts when an airborne odorant enters the nasal cavity and reaches olfactory epithelium (OE). The OE is protected by a thin layer of mucus, which also serves the purpose of dissolving more complex compounds into simpler chemical odorants. The size of the OE and the density of sensory neurons varies among species; in humans, the OE is only about 9-10 cm2.
The olfactory receptors are embedded in the cilia of the...
The olfactory receptors are embedded in the cilia of the...