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通过雄激素信号传递对虫的侵略性的性二态控制
Lillian R Jackson1, Beau A Alward2
1University of Houston, Department of Psychology, USA.
Molecular and cellular endocrinology
|June 26, 2024
概括
在雄性和雌性Astatotilapia burtoni鱼中,雄性信号调节攻击的不同. 虽然雄激素受体α (ARα) 对于男性的攻击性至关重要,但对于女性的攻击性来说,它并不需要.
科学领域:
- 神经内分泌学神经内分泌学
- 行为内分泌学 行为内分泌学
- 进行比较内分泌学.
背景情况:
- 性类固醇激素,像雄激素一样,调节先天的社会行为,如侵略.
- 了解荷尔蒙如何调节不同性别的类似行为至关重要,但仍然有限.
- 阿斯塔托蒂拉皮亚·布尔托尼 (Astatotilapia burtoni) 是一种社会鱼,在雄性和雌性中具有相似的攻击性行为,为研究性别特异激素作用提供了一个模型.
研究的目的:
- 为了研究雄性和雌性Astatotilapia burtoni在侵略调节中的雄性信号传递的作用.
- 为了确定雄激素受体 (ARs) 是否在控制侵略性行为方面发挥性别特异性的作用.
主要方法:
- 利用雄激素受体α (ARα) 淘汰 (KO) 鱼,因为ARα已知对雄性侵略和交配至关重要.
- 在ARα KO雌性和ARβ KO雌性中评估攻击水平.
- 对两种AR进行药理学阻断剂,以证实女性的发现.
- 在ARα KO雄性中观察到侵略性.
主要成果:
- 在ARα KO雌性中,没有表现出侵略性行为的缺陷.
- 缺乏ARβ的雌性也表现出正常的侵略水平.
- 药理学上对这两种AR的封锁证实,这两种药物对于女性的侵略性都不是必不可少的.
- ARα KO雄性在攻击性攻击方面显著减少.
结论:
- 在ARα在调节Astatotilapia burtoni中的侵略性方面的作用中存在性二态.
- 在这种物种中,ARα对雄性侵略至关重要,但对雌性侵略至关重要.
- 这些发现突出了荷尔蒙行为关系中的性别特异性机制.
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