对爱尔郡牛的形状特征进行全基因组关联研究
Anastasiia Ivanovna Azovtseva1, Marina Vladimirovna Pozovnikova1, Yuriy Sergheevich Shcherbakov1
1Russian Research Institute for Farm Animal Genetics and Breeding, Branch of the L.K. Ernst Federal Science Center for Animal Husbandry, 55a Moskovskoe shosse, Saint Petersburg, 196625, Russian Federation.
Animal science journal = Nihon chikusan Gakkaiho
|August 21, 2024
概括
全基因组关联研究确定了与牛形状特征相关的单核酸多态性 (SNP) 标志物. 这些遗传标记,包括特定的基因,可以改善艾尔郡牛的基因组选择程序.
科学领域:
- 动物遗传学动物遗传学
- 量化遗传学 量化遗传学
- 畜牧养殖 畜牧养殖 畜牧养殖
背景情况:
- 牛的遗传改进提高了经济效率和生产力.
- 牛的形状特征通常与生产力和抵抗力相关.
- 鉴定基因标记物对形状的鉴定对于选择性繁殖至关重要.
研究的目的:
- 为了确定单核酸多态 (SNP) 标记物和与爱尔郡牛的形状特征相关的基因.
- 探索外部缺陷的遗传基础,以改善繁殖策略.
主要方法:
- 在495只爱尔郡公牛身上进行了全基因组关联研究 (GWAS).
- 对17个形状特征和13个外部缺陷进行了线性评估.
- 在22个牛染色体中分析了SNP关联.
主要成果:
- 确定了与形状特征相关的43个SNP,其中4个达到显著性值.
- 发现了与外表缺陷相关的特定基因 (MYO1B,PEPD,ZFC3H1,EDNRB),如软腰,倾斜的乳房底部和软腰.
- 在染色体BTA1-9,11,12,14,16,18,19,22,25,27,和29上发现了显著的SNP.
结论:
- 鉴定的SNP标记物和基因是了解牛外表发育的有价值的候选者.
- 这些遗传标记可以有效地用于艾尔郡牛的基因组选择计划.
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