鸟类松果腺对不可预测的照明模式的性别特异的甲基基和转录基因反应
Fábio Pértille1, Tejaswi Badam2,3, Nina Mitheiss4
1Department of Organismal Biology, Physiology and Environmental Toxicology, Uppsala University, Uppsala, Sweden.
Journal of pineal research
|March 17, 2025
概括
不能预测的光线暴露会以特定于性别的方式改变松腺表观遗传和基因表达. 雌性的表现减少了表观遗传性二态,在压力下变得更像男性.
科学领域:
- 动物科学动物科学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 时间生物学 时间生物学
背景情况:
- 无法预测的光线是生产中的压力因素,影响生长和蛋效率.
- 松果腺通过黑激素调节昼夜节律,并受到表观遗传学的影响.
- 对光应激的性别特异反应的研究对于了解鸟类生理学至关重要.
研究的目的:
- 为了研究松腺对不可预测的光线暴露的性别特异表观遗传和转录基因反应.
- 在照明压力下识别甲基组和转录组之间的相互作用.
- 探索微RNA在这种反应中的作用.
主要方法:
- 综合性多原子分析:甲基组 (MeDIP-seq),转录组 (RNA-seq) 和miRNA分析.
- 暴露Hy-Line白的标准与不可预测的光线时间表 (3-24天化后).
- 性别特定的分析侧重于34只 (18只雌性,16只雄性).
主要成果:
- 不能预测的光线诱导了松果腺甲基组和转录组的性别特异性变化.
- 性别之间的转录组差异增加,而甲基组差异减少,特别是在Z染色体上.
- 女性表现出更像男性的松果甲基组,减少了表观遗传性二态.
结论:
- 照明压力在松腺中触发性别特异的表观遗传和转录基因适应.
- 确定了114个参与昼夜调节和应激适应的基因的核心调节网络.
- 研究结果突出了omics在昼夜反应中的相互作用,并提供了对应激适应性性别差异的见解.
关键词:
昼夜活动时间 (Circadian)表观遗传学是指表观遗传学.基因表达的基因表达方式照明方式 照明方式灯光 灯光 灯光 灯光 灯光甲基组组是什么?这是一个小RNARNA.松果腺是什么?松果腺是什么?性别差异的性别差异.文字转录 字体转录 字体转录更多相关视频
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