综合性全基因组关联研究和转录基因分析,以确定白羽毛肉中异质细胞和淋巴细胞特征的候选基因和途径
Jumei Zheng1, Qiao Wang2, John F O'Grady3
1State Key Laboratory of Animal Biotech Breeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China; UCD School of Agriculture and Food Science, University College Dublin, Belfield, Dublin D04 V1W8, Ireland.
Poultry science
|January 25, 2026
概括
这项研究确定了关键的基因和基因变异,影响的异质细胞与淋巴细胞比率 (H/L比率),这对于抗病能力至关重要. 突出显示MYO16和AKT3是调节免疫平衡的潜在因果基因.
科学领域:
- 禽类遗传学和免疫学
- 动物育种和基因组学
- 定量性质特征遗传学 遗传学
背景情况:
- 耐病性是家禽的一个关键的育种目标.
- 异质细胞与淋巴细胞的比率 (H/L比率) 是的压力和免疫状况的重要指标.
- 对于H/L比率的遗传基础还没有完全理解.
研究的目的:
- 确定控制白羽毛肉H/L比率的功能变异和关键基因.
- 研究家禽免疫相关特征的遗传结构.
- 结合基因组和转录基因组数据进行全面分析.
主要方法:
- 在218只鸟类上进行全基因组关联研究 (GWAS),以确定与H/L比率和异质细胞数量相关的显著SNP.
- 候选基因的功能注释和丰富分析 (例如,MYO16,AKT3).
- 权重基因共同表达网络分析 (WGCNA) 整合了转录和表型数据.
主要成果:
- GWAS确定了与H/L比率和异质细胞数量相关的SNP,对MYO16和AKT3.3等候选基因进行注释.
- 候选基因参与免疫通路,包括FoxO和mTOR信号传递.
- 精细地图确定了潜在的因果变异;WGCNA在囊和胆小肌中确定了枢纽基因.
- 综合分析显示,mTOR,FoxO和MAPK信号通路中的共同丰富.
结论:
- MYO16和AKT3是潜在的因果基因,会影响的H/L比率.
- 多种免疫信号通路调节异质细胞和淋巴细胞的平衡.
- 这些发现提供了对家禽免疫特征的遗传基础的见解,需要进一步验证.
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