在精子类动物中增加的转录分歧的动态遗传决定因素
Jasper Panten1,2,3, Tobias Heinen2,4,5, Christina Ernst6
1Division of Regulatory Genomics and Cancer Evolution, German Cancer Research Centre (DKFZ), 69120, Heidelberg, Germany.
Nature communications
|February 10, 2024
概括
基因表达的基因调节在细胞分化过程中动态变化. 这项研究揭示了ciss和trans遗传效应如何在精子发生过程中变化,突出了它们对转录分歧的影响.
科学领域:
- 基因组学就是基因组学.
- 发展生物学 发展生物学
- 分子生物学分子生物学
背景情况:
- 跨基因效应影响特定细胞类型的基因表达分歧.
- 在体内持续细胞分化过程中,了解cis和trans遗传效应的相互作用仍然是一个挑战.
研究的目的:
- 在单细胞分辨率下量化精子生成差异化过程中对基因表达的cis和trans遗传效应.
- 描述细胞分化过程中这些遗传效应的动态变化.
主要方法:
- 使用F1杂交小鼠系统进行基因特异表达分析.
- 采用单细胞分辨率来追踪精子生成期间的基因调节动态.
主要成果:
- 几乎一半受调节的基因表现出在分化过程中发生变化的动态 cis 效应.
- 确定了动态转变效应,但不如 cis 效应.
- 基因影响在圆形精子动物中达到顶峰,与物种间的转录分歧相关.
结论:
- 遗传效应,特别是cis效应,在体内细胞分化过程中表现出显著的动态.
- 该研究提供了一种强大的方法来剖析动态生物系统中的调节变异影响.
- 这些发现提供了关于在发育过程中转录分歧的遗传基础的见解.
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