与宿主易感性/耐药性相关的基因和感染Salmonella pullorum的的肠道微生物特征
Jinmei Ding1, Jianshen Zhu1, Hao Zhou1
1Shanghai Key Laboratory of Veterinary Biotechnology, Department of Animal Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China.
Microbiology spectrum
|March 3, 2025
概括
这项研究揭示了宿主遗传和肠道微生物群影响对pullorum疾病的易感性. 识别特定的遗传变异和细菌变化为疾病抵抗策略提供了新的途径.
科学领域:
- 动物遗传学动物遗传学
- 微生物学 微生物学
- 禽畜科学 禽畜科学 禽畜科学
背景情况:
- 由*Salmonella pullorum*引起的Pullorum病对的健康有重大影响.
- 传统的控制方法面临着抗生素耐药性和高成本等挑战.
- 更深入地了解宿主-病原体相互作用对于有效的疾病管理至关重要.
研究的目的:
- 为了研究宿主遗传基础的敏感性/抗性pullorum疾病在.
- 分析S. pullorum感染后肠道微生物组合的变化.
- 为了确定与pullorum疾病结果相关的潜在遗传标记和微生物特征.
主要方法:
- 全基因组关联分析 (WGA) 针对敏感和耐药品种的后代进行.
- 单核酸多态 (SNP) 和插入/删除 (InDels) 已被确定并注释.
- 使用16S rRNA测序分析了肠道微生物组的组成,在感染S. pullorum之前和之后进行了测序.
主要成果:
- 确定了195个SNP和79个与pullorum病耐药性/易感性相关的显著的InDels.
- 包括*MYH7,ATP2A3*和*CACNA1S*在内的关键基因显示出外基因的变异.
- 感染后观察到肠道微生物群多样性和结构的显著变化,死亡小中的*Lactobacillus,Escherichia_Shigella*和*Klebsiella*的丰度发生了变化.
结论:
- 宿主基因组变异和肠道微生物群失生症在容易感染pullorum疾病方面发挥着作用.
- 鉴定出基因标记物和微生物特征可以为疾病耐药性的育种计划提供信息.
- 这项研究为宿主基因,微生物群和*S. pullorum*感染之间的复杂相互作用提供了新的见解.
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