在羊群中,HSD11B-1和HSD11B-2的相对表达与妊娠状态的关联
Numan Ullah1, Mohamed Diaby1, Nada N A M Hassanine2
1Faculty of Agriculture, Al-Azhar University, Cairo, 11651, Egypt.
BMC genomics
|November 18, 2025
概括
在羊群中,使用HSD11B-1和HSD11B-2基因表达分析,可以在交配后的第12天早期检测怀孕. 这种方法为畜牧管理中的生殖效率提供了一个新的基准.
科学领域:
- 生殖生物学 生殖生物学
- 动物遗传学动物遗传学
- 分子诊断学 分子诊断学
背景情况:
- 畜牧业的利能力取决于生殖效率,而生殖效率受到环境因素的影响.
- 在羊群中早期和准确的怀孕检测对于优化生殖生理学和经济可持续性至关重要.
- 这项研究调查了五种羊品种的基因表达,以检测怀孕.
研究的目的:
- 评估羊外周血液单核细胞 (PBMC) 中的HSD11B-1和HSD11B-2基因表达水平,用于早期怀孕检测.
- 通过基因表达分析,为在羊群中早期检测怀孕建立一个新的基准.
- 分析与多个羊品种不同妊娠阶段相关的基因表达模式.
主要方法:
- 使用定量实时聚合酶链反应 (qRT-PCR) 来测量基因表达.
- 收集了500只母羊和75只公羊的血液样本,分别来自五种品种 (巴尔基,拉赫马尼,拉赫马尼x巴尔基,阿瓦西,奥西米).
- 对基因表达的分析从交配后的第9天到产前白色溶解,涵盖了各种妊娠阶段.
主要成果:
- 在所有品种中,与非孕妇和对照组相比,在孕妇羊群中观察到显著增加的HSD11B-1和HSD11B-2基因表达.
- HSD11B-1表达在交配后的35-40天之间达到峰值,而HSD11B-2在植入后阶段 (18-25天) 达到更早的峰值.
- 这两种基因在交配后的第12天就显示出显著的升高调节,Rahmani x Barki杂交动物显示出对HSD11B-1的最高折叠变化.
结论:
- 这项研究是首次报告HSD11B-1和HSD11B-2基因在交配后的第12天显著上调,为在羊群中早期检测怀孕建立了新的基准.
- HSD11B-1和HSD11B-2的独特表达模式为生殖生物学提供了宝贵的见解.
- 这些发现可能会为未来的育种和管理实践提供信息,以优化绵羊的繁殖成功.
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