纤维细胞生长因子13基因内的拷贝数变化会影响牛群的生长特征和替代拼接
Hanfang Cai1, Xin Li1, Xinran Niu1
1College of Animal Science and Technology, Henan Agriculture University, Zhengzhou, China.
Animal biotechnology
|March 1, 2024
概括
牛纤维细胞生长因子13 (FGF13) 基因拷贝数的变化会影响牛的生长特征和基因转录. 在FGF13复制数的损失会对中国牛品种的生长和mRNA表达产生负面影响.
科学领域:
- 遗传学 是一个遗传学.
- 动物科学动物科学
- 分子生物学分子生物学
背景情况:
- 此前已经确定了牛纤维细胞生长因子13 (FGF13) 基因中的副本数变异 (CNV) 区域.
- 这种FGF13 CNV对牛的特征和基因表达的功能影响尚不清楚.
研究的目的:
- 在七种中国牛品种中研究FGF13 CNV的种群遗传特征.
- 分析FGF13 CNV对生长特征和基因转录水平的影响.
- 探索FGF13 CNV与替代拼接异型之间的关系.
主要方法:
- 在七种中国牛品种中对FGF13 CNV的基因定型.
- 在川牛群中,FGF13 CNV与生长特征 (胸深,部宽度,骨宽度) 之间的关联分析.
- 对FGF13基因转录水平的分析和拼接异型的识别 (AS1,AS2).
主要成果:
- 在高元红牛和西安红牛中,FGF13的损失更为普遍.
- 在川牛群中,FGF13 CNV显著影响了胸部深度,部宽度和骨宽度,而Loss是有害的.
- FGF13 CNV与AS1异型的mRNA表达具有负相关性,表明对基因转录的调节作用.
结论:
- 牛FGF13基因中的CNVs负面调节生长特征和基因转录.
- 这些发现为牛FGF13基因提供了新的见解.
- 这项研究为未来的中国牛养殖计划提供了有价值的信息,旨在提高生长性能.
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