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Updated: Jan 22, 2026

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在 (Anser anser domesticus) 胚胎皮肤发育期间的动态表观遗传和转录基因重编程
Yuxuan Zhou1, Xinyue Li1, Jingbo Wang1
1College of Animal Science and Technology, Jilin Agricultural University, Changchun, China.
Functional & integrative genomics
|January 21, 2026
概括
这项研究揭示了羽毛毛囊发育过程中的动态表观遗传和转录基因变化. 关键的基因通路和染色质可访问性转移驱动皮肤附属体的形成和分化.
科学领域:
- 发展生物学 发展生物学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 基因组学就是基因组学.
背景情况:
- 羽毛毛囊是鸟类的关键皮肤附属物,对于温度调节和保护至关重要.
- 它们的发育涉及胚胎发生过程中复杂的遗传和表观遗传过程.
- 了解这些机制,可以了解鸟类皮肤附属体的形成.
研究的目的:
- 调查匈牙利白胚胎皮肤和羽毛毛囊发育期间的动态表观遗传-转录基因变化.
- 确定关键的调节基因和参与羽毛形态发生的信号通路.
- 探索染色体可访问性和基因表达之间的相互作用.
主要方法:
- 在不同发育阶段 (E10,E13,E18) 的胚胎皮的组织学分析.
- RNA测序 (转录组学) 用于识别差异表达基因 (DEG).
- 使用测序 (ATAC-seq) 测定转化酶可访问的染色质,以绘制染色质可访问性的地图.
主要成果:
- 组织学证实了从表皮层到羽毛芽和复杂的毛囊的顺序发展.
- 转录组学确定了在表皮发育,粘附和角质化中富含的DEG,在不同阶段具有不同的途径 (Wnt,TGF-β,脂质代谢,VEGF).
- ATAC-seq揭示了动态色素可访问性,具有特定阶段的促进器开放性和丰富的动机,与信号通路和细胞过程如分化和恒温相对应.
结论:
- 协调的表观遗传和转录调节控制着羽毛毛囊形态发生.
- 特定的信号通路 (Wnt,TGF-β,脂质代谢,FoxO) 和转录因子 (LEF1,MSX2,FOXN1) 是至关重要的.
- 这些发现为鸟类和脊椎动物皮肤附属物的发育和调节提供了宝贵的见解.
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