解读山羊热应激耐受性的分子机制:从转录组和基因共同表达分析的见解
Mahesh Shivanand Dige1, Ankita Gurao1, Arnav Mehrotra2
1Division of Animal Genetic Resources, ICAR-National Bureau of Animal Genetic Resources, Karnal, 132001, Haryana, India.
Journal of thermal biology
|November 3, 2024
概括
热应激会影响山羊的生产力. 这项研究在耐热山羊中确定了734个差异表达的基因,揭示了改善牲畜对气候变化的抵御能力的关键分子途径.
科学领域:
- 动物基因组学 动物基因组学
- 适应气候变化 适应气候变化
- 畜牧业 生产 畜牧业 生产
背景情况:
- 气候变化威胁到畜牧业的可持续性,特别是在发展中国家.
- 像山羊这样的小反动物容易受到热应激的影响,影响生产力和经济可行性.
- 了解耐热性分子机制对于牲畜的弹性至关重要.
研究的目的:
- 为了研究Jamunapari山羊热应激耐受性的分子基础.
- 为了确定与耐热性相关的差异表达基因 (DEGs).
- 为养策略提供见解,以提高山羊的弹性.
主要方法:
- 使用RNA-Seq对耐热 (HT) 和热敏感 (HS) 羊进行转录组分析.
- 在极端高温下进行生理监测 (直肠温度,呼吸率,心率).
- 权重基因同表达网络分析 (WGCNA) 和功能丰富分析.
主要成果:
- 在HT与HS山羊中鉴定了734个DEG (251个上调,483个下调).
- WGCNA强调了与耐受性,呼吸率和心率相关的模块.
- DEGs参与线粒体功能,心脏功能,免疫反应,基因组稳定性和新陈代谢.
结论:
- 这项研究提高了对山羊耐热性遗传因素的理解.
- 这些发现为养殖计划提供了指导,以提高山羊对气候变化的抵抗力.
- 分子洞察力可以支持脆弱地区的可持续畜牧生产.
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