综合多组织转录基因组分析描述了影响绵羊 (Ovis aries) 生殖的遗传基础和生物标志物
Zaixia Liu1,2, Shaoyin Fu3, Xiaolong He3
1College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China.
Genes
|October 28, 2023
概括
这项研究揭示了中国本土绵羊繁殖中的关键基因和途径,重点关注下丘脑-垂体-卵巢轴. 结果确定了51个转录因子,这些因子对于绵羊的遗传选择至关重要.
科学领域:
- 基因组学和分子生物学
- 动物繁殖科学 动物繁殖科学
- 文字转录学 (Transcriptomics) 是一个学科.
背景情况:
- 绵羊的子大小遗传性很低,受多个基因的影响,需要进一步研究相关的遗传机制.
- 了解多组织基因表达对于改善绵羊生殖特征至关重要.
研究的目的:
- 为了探索中国原产Xinggao羊的多组织基因表达模式.
- 为了确定基因和途径涉及的下丘脑-垂体-卵巢轴 (HPO) 生殖生物学见解.
- 发现用于遗传选择的分子标记物,以增强绵羊子大小.
主要方法:
- 全球基因表达分析来自成年雌羊的10个组织.
- 统一的多重近似和投影 (UMAP) 用于集群分析.
- 功能丰富分析 (例如,ATM信号,免疫反应,催产素信号).
- 在不同羊品种 (Xinggao,苏尼特,萨福克) 的基因表达差异 (DEG) 分析.
- 在DEGs中识别转录因子 (TFs).
主要成果:
- 卵巢,子宫和下丘脑显示了最高的基因表达.
- 脏,子宫和卵巢中的基因在ATM信号通路中得到丰富;肝脏,脏和卵巢基因在免疫反应中得到丰富.
- 在HPO轴上,催产素信号通路被广泛丰富.
- 差异基因表达分析揭示了神经活性联体受体相互作用,并确定了51个TF基因,包括homeoboxTFs,可能调节HPO转录变异.
结论:
- 这项研究为调查绵羊生殖生理学和调节提供了基础资源.
- 鉴定的基因和转录因子为遗传选择提供了潜在的分子标记,以改善绵羊的繁殖性能.
- 这些发现提高了对绵羊生殖生物学和遗传改进策略的理解.
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