乳牛中CSN3 3'UTR的多态性导致bta-miR-708结合能力和 κ-氨酸表达的变化
Wenqing Li1, Xiaoyang Wang1, Pinhui Wu1
1College of Life Science, Henan Agricultural University, Zhengzhou 450046, China.
Animals : an open access journal from MDPI
|December 17, 2024
概括
在中国的荷尔斯坦牛中, κ-casein (CSN3) 3'UTR的多态性影响了基因和蛋白质的表达. 这些变异影响微RNA结合,但在乳制品生产绩效指标上没有显著变化.
科学领域:
- 动物遗传学动物遗传学
- 分子生物学分子生物学
- 乳制品科学 乳制品科学
背景情况:
- κ-素 (CSN3) 基因多态性与牛奶生产和加工特征有关.
- 了解CSN3 3'UTR变异对于乳牛养殖和管理至关重要.
研究的目的:
- 为了研究中国霍尔斯坦牛的CSN3 3'UTR多态性.
- 分析这些多态对CSN3基因和蛋白质表达,miRNA结合和生产性能的影响.
主要方法:
- 在50只中国霍尔斯坦牛中,CSN3 3'UTR多态的基因定型.
- 对CSN3基因和蛋白质表达的量化.
- 对bta-miR-708与CSN3 3'UTR结合的评估.
- 乳牛群改善 (DHI) 数据的分析.
主要成果:
- 在CSN3 3'UTR.中发现了两个主要的单元型 (单元型1和单元型10).
- 与Haplotype 10 (p <0.05) 相比,Haplotype 1的CSN3基因和蛋白质表达显著更高.
- 哈普洛型10对bta-miR-708 (p < 0.05) 的结合亲和力显著增加,与较低的CSN3表达相关.
- 两种类型之间没有观察到主要的DHI生产特征的显著差异 (p > 0.05).
结论:
- CSN3 3'UTR多态显著影响CSN3基因和蛋白质表达以及中国霍尔斯坦牛的miRNA结合.
- 尽管发生了分子层面的变化,但这些特定的多态性并没有显著改变宏观乳制品生产性能.
- 对CSN3 3'UTR多态的进一步研究是有必要的,以阐明它们的全部影响.
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