在CYP3A4和PLB1的等位基变异驱动牛肉牛的料效率和免疫代谢弹性
Olanrewaju B Morenikeji1,2, Modoluwamu Idowu3,4, Godstime Taiwo3,5
1Department of Biology, Virginia State University, Petersburgh, VA, 23806, USA. omorenikeji@vsu.edu.
BMC genomics
|December 18, 2025
概括
基因标记物CYP3A4和PLB1与肉牛的提高料效率和免疫弹性有关. 这些发现支持加强牛肉生产特征的标记器辅助选择.
科学领域:
- 动物遗传学动物遗传学
- 免疫代谢过程中的免疫代谢.
- 牛肉牛生产 牛肉牛生产
背景情况:
- 料效率和免疫弹性对于可持续的牛肉生产至关重要.
- 免疫代谢特征在确定这些生产特征方面发挥着重要作用.
- 识别这些特征的遗传标记对于选择性繁殖至关重要.
研究的目的:
- 确定与肉牛的料效率和免疫能力相关的功能性遗传标记.
- 整合SNP基因型定型和基因表达造型,用于标记物发现.
- 研究特定遗传变异与性能特征之间的联系.
主要方法:
- 通过剩余料摄入 (RFI) 评估了102只杂交牛的料效率.
- 在高和低RFI动物中,基因型化了三个代谢位置 (CYP3A4,PLB1,CRAT) 并对免疫基因的血液mRNA进行了分析.
- 利用后勤回归和哈普洛型重建来将基因型与性能和免疫标记器联系起来.
主要成果:
- CYP3A4和PLB1多态性与体重,平均每日增加和料摄入量显著相关.
- 携带CYP3A4 A/A和PLB1 A-基因基因的携带者在减少料摄入时表现出优异的生长.
- 有利的基因型与免疫基因的上调相关,表明协调的代谢-免疫适应.
结论:
- CYP3A4和PLB1已被验证为用于标记器辅助选择的高影响量化特征核酸.
- 这些标记物可以同时提高肉牛的料效率和免疫弹性.
- 这些发现为通过有针对性的繁殖策略增强可持续牛肉生产提供了遗传基础.
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