构建多组织细胞图谱揭示了猪分子和复杂表型的细胞类型特定调节
Lijuan Chen1, Houcheng Li2, Jinyan Teng3
1Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Livestock and Poultry Multi-omics of MARA, Kunpeng Institute of Modern Agriculture at Foshan, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, 518124, China.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|November 27, 2025
概括
这项研究使用单细胞转录组图谱绘制了猪细胞异质性的地图,揭示了细胞类型特定的基因表达与复杂的特征和人类表型遗传性的联系.
科学领域:
- 基因组学就是基因组学.
- 细胞生物学 细胞生物学
- 动物科学动物科学
背景情况:
- 了解细胞异质性和组织间的基因调节对于猪的复杂特征至关重要.
- 之前的研究缺乏对猪的综合单细胞地图,限制了对细胞类型特定功能的洞察力.
研究的目的:
- 创建一个全面的成年猪单细胞转录组图谱.
- 识别细胞类型特定的基因表达模式及其调节机制.
- 以细胞类型特定的方式将遗传变异与基因表达和复杂特征联系起来.
主要方法:
- 从19个成年猪组织的229,268个核中生成了一个单细胞转录组图谱.
- 标注了67种主要细胞类型和特征组织特异性的细胞功能.
- 分解了3,921个大量RNA-seq样本,以识别表达定量特征位置 (eQTL) 与细胞类型相互作用效应 (ieQTL).
- 局部化ieQTL与268个复杂特征的变体推断细胞机制.
主要成果:
- 建立了猪组织的高分辨率单细胞地图,详细说明细胞异质性.
- 确定了数千种具有细胞类型特异性对基因表达 (ieQTL) 调节效应的遗传变异.
- 将这些iQTL与268个复杂的特征联系起来,为特征遗传性提供了细胞洞察力.
- 在猪和人类之间发现保存的细胞类型特定的基因调节模式,用于复杂的表型.
结论:
- 猪GTEx地图提供了猪基因组学和精密育种的基础资源.
- 细胞异质性和细胞类型特定的基因调节是猪复杂特征的关键驱动因素.
- 这项工作为复杂特征的遗传结构提供了新的见解,对动物和人类健康研究都有影响.
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