在Duroc野猪的性成熟期间的精子RNA景观
Asmita Shrestha1, Maren van Son2, Adnan Hashim3
1CRESCO, Centre for Embryology and Healthy Development, University of Inland Norway, Hamar, Norway. asmita.shrestha@inn.no.
BMC genomics
|January 22, 2026
概括
野猪的性成熟涉及精子中协调的转录基因转移,大多数基因在10个月后显示RNA丰度增加. 这些涉及微RNA (miRNA) 的变化对于猪的生殖发育至关重要.
科学领域:
- 生殖生物学 生殖生物学
- 基因组学就是基因组学.
- 动物科学 动物科学
背景情况:
- 猪的性成熟对于猪生产效率至关重要.
- 驱动野猪性成熟的分子机制尚未得到充分理解.
- 这项研究研究了猪精子在成熟过程中的转录组变化.
研究的目的:
- 为了确定与Duroc猪的性成熟相关的分子特征.
- 为了比较青春期和性成熟期的精子的转录组形状 (总RNA和miRNA).
- 阐明基因和miRNA表达在野猪生殖发育中的作用.
主要方法:
- 在两个时间点对6只Duroc野猪的精子进行纵向分析:青春期 (大约. 7个月) 和性成熟 (大约. 10个月). 在10个月).
- 使用Illumina NovaSeq-6000和NextSeq-500分别进行总RNA和miRNA测序.
- 使用DESeq2进行微分表达式分析,其中包含用于重复测量的配对统计模型.
主要成果:
- 确定了60个差异表达基因 (DEGs) 和6个差异丰富的miRNAs.
- 基因本体学分析揭示了生殖发育过程和激酶活性中的丰富性.
- 综合分析确定了18个涉及细胞周期和染色质结合的miRNA-mRNA调节对.
结论:
- 野猪精子在性成熟期间表现出协调的转录基因转移.
- 增加RNA丰度和miRNA调节是这种发育过渡的关键特征.
- 这些发现有助于更好地了解猪性成熟的基础分子机制.
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