转录组分析揭示了关键的长非编码RNA和与山羊的克什米尔脱落相关的基因
Yixing Fan1,2, Tiantian Gong1,3, Siyu Feng1,4
1College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, China.
Animal bioscience
|October 24, 2025
概括
研究人员确定了关键的长非编码RNA (lncRNA) 和基因,包括LOC108637151和SEPP1,这些基因调节了山羊的喀什米尔脱落. 这一发现揭示了喀什米尔纤维生产背后的分子机制.
科学领域:
- 动物科学动物科学
- 基因组学就是基因组学.
- 分子生物学分子生物学
背景情况:
- 喀什米尔山羊因其高品质的喀什米尔纤维而受到重视.
- 调节喀什米尔脱落的分子机制,对于纤维生产至关重要,仍然不太了解.
研究的目的:
- 为了研究在山羊中的克什米尔脱落背后的分子机制.
- 确定关键的调节因素,包括长非编码RNA (lncRNAs) 和差异表达基因 (DEGs),参与喀什米尔脱落.
主要方法:
- 从已经脱落 (AS) 和尚未脱落 (NS) 的喀什米尔山羊的皮肤组织进行比较组织学分析.
- 评估与毛囊循环相关的指标基因表达水平 (anagen和telogen).
- 全转录组测序以识别DEG和lncRNA,然后进行网络构建和功能验证.
主要成果:
- 与NS山羊相比,AS山羊的二次毛囊 (SHF) 的密度,深度,宽度和毛球宽度明显较低.
- 在AS山羊中,SHF更倾向于阳原阶段,而NS山羊的SHF主要处于端原阶段.
- 转录组分析确定了450个DEG和352个差异表达的lncRNAs. lncRNA LOC108637151及其共同表达的基因Selenoprotein P (SEPP1) 被确定为关键调节剂,在AS山羊中表达更高. 过度表达LOC108637151促进了SEPP1的表达和皮肤乳头细胞的增殖.
结论:
- 这项研究确定了关键的lncRNA和基因,特别是LOC108637151和SEPP1,参与了喀什米尔脱落.
- 这些发现为了解山羊中喀什米尔脱落的分子机制提供了基础.
- 鉴定的监管关系为改善喀什米尔生产提供了潜在的目标.
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