整合性GWAS和RNA-seq将MYL9确定为中pullorum病耐药性的关键调节者
Jiongwen Wu1, Zhexia Fan1, Xiaohuan Chao1
1Guangdong Laboratory for Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou 510000, China; State Key Laboratory of Livestock and Poultry Breeding, South China Agricultural University, Guangzhou 510000, 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 510000, China.
这项研究确定MYL9是禽类对普洛伦病免疫力的关键基因. MYL9显著增强免疫因子的表达,为疾病抵抗提供了潜在的目标.
科学领域:
- 鸟类免疫学 鸟类免疫学
- 基因组学就是基因组学.
- 禽类的健康状况
背景情况:
- 由沙门氏菌 (Salmonella Pullorum) 引起的Pullorum病是家禽的主要威胁.
- 了解宿主免疫反应对于疾病控制至关重要.
研究的目的:
- 为了研究宿主免疫反应和基因调节在白色普利斯岩的沙门氏菌普洛伦感染期间.
- 识别与疾病耐药性相关的遗传因素.
主要方法:
- 在375只母上进行全基因组关联研究 (GWAS) 和RNA测序 (RNA-seq).
- 对免疫因子水平 (IgG,IL-6,IL-8) 和基因表达的分析.
- 在HD11细胞中对候选基因的功能验证.
主要成果:
- GWAS确定了72个SNP和289个候选基因.
- RNA-seq揭示了与沙门氏菌感染和免疫路径相关的536个差异表达基因 (DEGs).
- 确定了五个重叠的基因 (MYL9,SYT1,KLHL38,C11orf87,KCNH4),其中MYL9是沙门氏菌感染途径的中心.
- 在细胞检测中,MYL9显著上调免疫因子 (IL-2,IL-3,IL-6,IFN-α,IFN-β,TNF-α) 和蛋白质 (IFN-α,TNF-α,IgG).
结论:
- MYL9通过增强免疫因子的产生,在家禽对沙门氏菌的免疫反应中发挥关键作用.
- MYL9代表了一种潜在的基因标,可以提高家禽对Pullorum病的抵抗力.
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