EGR1 mRNA表达水平和多态性与的屠宰性能有关
Mao Ye1, Xiaohuan Chao2, Chutian Ye1
1College of Animal Science, South China Agricultural University, Guangzhou, PR China; State Key Laboratory of Livestock and Poultry Breeding, South China Agricultural University, Guangzhou, PR China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding and Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, PR China.
早期生长反应蛋白1 (EGR1) 促进肌细胞的增殖,但抑制了分化. EGR1基因变异与改善肉屠宰特征有关,提供了一个新的繁殖标志物.
科学领域:
- 动物遗传学动物遗传学
- 分子生物学分子生物学
- 畜牧养殖 畜牧养殖 畜牧养殖
背景情况:
- 畜牧业优先考虑肉类产量和屠宰性能优越的肉品种.
- 之前的研究发现,在的乳腺组织中,早期生长反应蛋白1 (EGR1) 的表达更高,肌肉速率更低,这表明它在肌肉发育中起作用.
研究的目的:
- 研究EGR1基因在肉肌肉生长和发育中的功能.
- 分析EGR1基因多态和肉屠宰特征之间的关联.
主要方法:
- 使用RT-qPCR,CCK-8,EDU测定,西斑,流细胞计和免疫光学在初级肌细胞体中的功能验证.
- 使用混合线性模型识别和关联分析EGR1单核酸多态 (SNPs) 与特定血统中的屠宰特征.
主要成果:
- EGR1在乳腺肌肉含量较低的组织中高度表达,并促进肌细胞增殖,同时抑制分化.
- 确定了四个EGR1SNP,其中两个与活体体重,屠宰体重,半消化体重,消化体重,腿体重,翅膀体重和乳房肌肉速率有显著关联.
结论:
- EGR1在调节肌肉生长和发育方面发挥着至关重要的作用.
- EGR1多态性与关键的屠宰绩效指标有关,为肉养殖计划提供了潜在的标志物.
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