全基因组DNA甲基化分析和在济宁灰山羊中对垃圾大小特征的功能验证
Cunming Yang1,2, Junmin He2, Jingyi Mao2
1College of Animal Science, Xinjiang Agricultural University, Urumqi 830052, China.
Genes
|March 28, 2024
概括
羊卵巢中的DNA甲基化 (DNAm) 通过调节基因表达来影响 litter 尺寸. 这项研究在济宁灰山羊中确定了与子大小特征相关的关键基因,揭示了生殖能力改善的潜在机制.
科学领域:
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 动物基因组学 动物基因组学
- 生殖生物学 生殖生物学
背景情况:
- 基因甲基化 (DNAm) 涉及生殖功能,但其在调节山羊 litter 尺寸方面的具体作用仍然在很大程度上未知.
- 了解控制子大小的遗传和表观遗传机制对于改善山羊繁殖和生产率至关重要.
研究的目的:
- 综合分析来自高 (HP) 和低 (LP) litter 规模组的济宁灰山羊卵巢组织的全基因组DNA甲基化概况.
- 通过整合全基因组二硫酸盐测序 (WGBS) 和RNA测序 (RNA-Seq) 数据,识别与 litter 尺寸特征相关的候选基因和表观遗传标记.
- 阐明DNA甲基化在调节基因表达中的作用及其对山羊子大小的影响.
主要方法:
- 全基因组双硫酸盐测序 (WGBS) 用于对HP和LP的DNA甲基化模式进行分析.
- 进行RNA测序 (RNA-Seq) 来分析基因表达水平.
- 生物信息分析整合了WGBS和RNA-Seq数据,以确定差异甲基化区域 (DMR),差异甲基化基因 (DMG) 和差异表达基因 (DEG). 乙硫酸盐测序 (BSP) 和RT-qPCR用于验证.
主要成果:
- 在HP和LP组之间,共确定了976个差异甲基化区域 (DMR) 和310个差异甲基化基因 (DMG).
- 整合了WGBS和RNA-Seq数据,发现了59个差异甲基化和差异表达基因 (DEG).
- 八个关键基因 (SERPINB2,NDRG4,CFAP43,LRP1B,EPHA6,TTC29,PDE11A,PGF) 被确定与济宁灰色山羊的子大小特征有显著关联.
结论:
- 在山羊卵巢中进行全基因组DNA甲基化分析,为子大小的表观遗传调节提供了至关重要的见解.
- 已识别的关键基因和DMRs代表了标记器辅助选择和基因改善济宁灰色山羊子大小的潜在目标.
- 基因甲基化在确定子大小方面发挥着重要作用,这突显了它在山羊生殖生物学中的重要性.
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