单位和多位基因组广泛关联研究确定了与美利诺兰绵羊肝脏Cu度相关的基因
Olusegun O Adeniyi1, Ivica Medugorac2, Ewa Grochowska3
1Institute of Animal Breeding and Genetics, Justus Liebig University Giessen, Ludwigstrasse 21, 35390 Giessen, Germany.
Genes
|May 27, 2023
概括
这项研究确定了影响绵羊肝铜水平的关键基因和基因组区域,这对于防止铜不平衡造成的经济损失至关重要. 研究结果支持用于改善绵羊铜耐受性的育种策略.
科学领域:
- 遗传学 遗传学 是一个
- 动物科学动物科学
- 农业科学 农业科学
背景情况:
- 铜缺乏和中毒对绵羊养殖者造成重大经济损失.
- 了解铜代谢的遗传基础对于改善羊的健康和生产力至关重要.
研究的目的:
- 确定与羊肝铜度变化相关的基因组区域和候选基因.
- 探索美利诺兰品种肝脏铜水平的遗传结构.
主要方法:
- 全基因组关联研究 (GWAS) 使用来自美利诺兰羊羔的45511个SNP和130个肝脏样本.
- 使用单位 (SL-GWAS) 和多位 (ML-GWAS) 方法.
- 对已识别的候选基因和基因本体学 (GO) 术语进行基因丰富分析.
主要成果:
- 通过SL-GWAS确定了两个重要的SNP,通过ML-GWAS确定了13个.
- 在重要的基因组区域内发现了9个候选基因,包括DYNC1I2,VPS35,SLC38A9和CHMP1A.
- 与 lysosomal 和线粒体膜以及:质子抗载体活性相关的丰富基因实体学术语.
结论:
- 羊的肝铜度是一种多基因特征.
- 已识别的候选基因和相关的生物通路为未来的育种计划提供了目标,旨在提高绵羊的铜耐受性.
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