转录组动态和与免疫相关的SNP在感染中国大米田黄斑病毒的Monopterus albus中发现
Yuzhuo He1, Xin Ren2, Qinglin Yang3
1College of Fisheries, Research Center for Aquatic Biodiversity Conservation in the Upper Reaches of Yangtze River, Southwest University, Chongqing, 400715, China; Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, 430223, China.
Fish & shellfish immunology
|August 28, 2025
概括
研究人员在中国的田中发现了主要的免疫反应. 针对LAMR基因可以改善鱼对病毒性疾病的存活率.
科学领域:
- 水生动物健康
- 免疫学
- 遗传学
背景情况:
- 病毒感染对中国田鱼 (Monopterus albus) 水产养殖构成重大威胁.
- 了解免疫反应对于疾病管理至关重要.
研究的目的:
- 调查Monopterus albus对中国大米田拉布病毒 (CrERV) 感染的免疫动态和遗传反应
- 确定免疫基因和抗病分子标记.
主要方法:
- 和脏组织的组织病理分析.
- 在不同感染时间点对组织的转录组测序.
- 基因丰富分析 (GO,KEGG) 和定量实时PCR (qRT-PCR).
- 蛋白与蛋白相互作用网络分析和基因破坏实验.
主要成果:
- 在感染后24至48小时内确定了关键免疫反应窗口.
- 显示了包括NF-κB信号传递在内的免疫通路的显著激活.
- 发现了77个与免疫相关的差异表达基因 (DEG),其中15个被确定为关键调节者.
- 证实LAMR基因倒置可以提高鱼对CERV感染的存活率.
- 在免疫相关基因中确定功能单核酸多态 (SNP).
结论:
- 这项研究阐明了M. albus对CrERV的时间免疫反应.
- 通过抑制病毒进入或复制,LAMR对病毒感染起着保护作用.
- 鉴定了选择性繁殖的分子资源和潜在的遗传标记,以增强水产养殖中的抗病能力.
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