可移植元素调节绵羊胎儿的尾巴发育和脂肪沉积
Qianqian Liang1, Haichen Yang1, Huajiao Dong1
1College of Animal Science and Technology, Shihezi University, Shihezi 832003, China.
Animals : an open access journal from MDPI
|December 30, 2025
概括
可转移元素 (TE) 显著影响绵羊尾巴的发育,例如SINE/MIR,L1和BovB的特定元素表现出特定阶段的表达. 这些TEs与尾巴延长和脂肪沉积有关,为羊养殖提供了洞察力.
科学领域:
- 基因组学就是基因组学.
- 发育生物学 发展生物学
- 分子进化分子进化
背景情况:
- 可转移元素 (TE) 是移动的遗传序列,在各种生理过程中具有已知的作用.
- 哺乳动物尾巴发育中的特E的具体功能尚未得到充分理解.
- 了解 TE 调节对于破译发育机制至关重要.
研究的目的:
- 调查羊尾巴发育过程中TEs的表达模式和调节作用.
- 识别涉及关键发展阶段和过程的特定技术特征.
- 提供关于绵羊尾巴表型的遗传基础的见解.
主要方法:
- 用RNA测序 (RNA-seq) 来分析基因表达特征.
- 使用TEtranscripts管道来识别和量化差异表达的TE.
- 进行了生物信息分析,包括途径丰富,以将TE活性与基因表达和发育功能相关联.
主要成果:
- 对于SINE/MIR,L1和BovB元素,观察到显著的特定阶段表达.
- 在不同发育阶段确定了动态数量的差异表达的TE (2129和5554在特定阶段之间).
- 位于基因间区域的TEs,内子和3'UTR显示出与邻近基因一致的表达趋势,涉及它们的尾巴延长和脂肪形成,特定的候选人被确定为脊椎形成和脂肪沉积.
结论:
- 可转移的元素在绵羊尾巴发育中发挥着重要的,以前被低估的作用.
- 特定的TEs是动态调节的,与关键的发育过程相关,如尾巴延长和脂肪沉积.
- 这项研究提供了有价值的遗传信息,可以通过了解TE介导的特征变异来改善绵羊育种计划.
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