通过转录组分析识别猪肌肉内脂肪酸成分的候选调节基因
Jesús Valdés-Hernández1,2, Josep M Folch3,4, Daniel Crespo-Piazuelo5
1Plant and Animal Genomics, Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Campus UAB, Bellaterra, Spain. jesus.valdes@cragenomica.es.
Genetics, selection, evolution : GSE
|February 12, 2024
概括
这项研究确定了调节猪肌肉脂肪酸成分的关键基因和转录因子. 这些发现提供了关于肌肉内脂肪和肉质性特征的遗传控制的见解.
科学领域:
- 动物遗传学动物遗传学
- 营养学就是营养学.
- 分子生物学分子生物学
背景情况:
- 肌肉内脂肪 (IMF) 含量和脂肪酸 (FA) 组成受到多个基因的影响,但影响很小.
- 了解这些遗传因素对于改善肉质和动物健康至关重要.
研究的目的:
- 为了确定候选基因和调节因子,控制猪长背肌 (LD) 肌肉中FA组成.
- 执行FA和转录组资料的多变量整合分析.
主要方法:
- 分析了来自129头猪的LD RNA-Seq和FA组成数据.
- 多变量相关性,网络分析,监管影响因子 (RIF) 分析和in silico预测.
- 功能和基因本体学的丰富分析.
主要成果:
- 确定了378个相关变量,包括6个关键的FA和365个参与脂质代谢,IMF沉积,肉质和运输的基因.
- 六个转录因子 (CARHSP1,LBX1,MAFA,PAX7,SIX5,TADA2A) 被确定为潜在的调节者.
- TADA2A和CARHSP1与特定的FA具有显著的相关性,并且与参与脂质代谢的目标基因有共同的关系.
结论:
- 综合性分析揭示了猪中FA和脂质代谢的候选基因和调节剂.
- 建议使用特定的转录因子,特别是TADA2A和CARHSP1,来控制基因表达和调节FA的组成.
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