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在挪威老鼠中通过气味标记解开雌性沟通
Guadalupe Gómez-Baena1, Kieran C Pounder2, Josiah O Halstead2
1Centre for Proteome Research, Department of Biochemistry and Systems Biology, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool L69 7ZB, United Kingdom.
概括
雌性老鼠使用气味标记来传达生殖状态,根据社会背景和遗传关系调整气味释放. 富含特定蛋白质的阴蒂分泌物是这种化学信号的关键.
科学领域:
- 动物行为 动物行为
- 化学生态化学生态学
- 哺乳动物的沟通方式
背景情况:
- 女性的化学沟通是研究不足的,重点是性感受力和母子相互作用.
- 在社会物种中,气味调解女性的竞争和合作,影响生殖成功.
研究的目的:
- 调查雌性大鼠是否根据性感受性和同类基因身份差异地部署气味信息.
- 确定女性是否被来自女性气味的信息吸引,与男性气味相比,类似或不同.
主要方法:
- 对雌性大鼠的气味标记行为进行观察性研究.
- 对不同基因背景和性接受度的同物种的气味标记反应的分析.
- 对女性气味沉积物的蛋白质学分析,专注于阴蒂腺分泌物和尿液.
- 行为测试测试对操纵的气味混合物的吸引力.
主要成果:
- 雌性大鼠在对同株雌性气味的反应中增加了气味标记,这表明有针对性的沟通.
- 性感受性雌性抑制了气味标记,以应对异株雄性气味.
- 女性气味标记含有复杂的蛋白质,特别是阴蒂衍生水溶酶和截断的主要尿道蛋白 (MUP).
- 雌性阴蒂分泌物和尿液混合物吸引了两性,而单独的尿液没有.
结论:
- 雌性老鼠与雌性和雄性共享关于受体状态的信息.
- 阴蒂分泌物含有截断的MUP和其他蛋白质,对于女性与女性以及女性与男性的化学通信至关重要.
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