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在Litopenaeus vannamei中开发和基于TaqMan探针的qPCR测定Vibrio parahaemolyticus导致半透明后病 (TPD) 的检测

Xin Jia¹, Lu Zhang¹, Qinxuan Li¹

¹Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China; MOE Key Laboratory of Marine Genetics and Breeding, College of Marine Life Science, Ocean University of China, Qingdao 266003, China; Hainan Key Laboratory of Tropical Aquatic Germplasm, Sanya Oceanographic Institution, Ocean University of China, Sanya 572024, China.

Journal of invertebrate pathology

|February 25, 2026

概括

一个新的TaqMan探测器qPCR测定快速检测Vibrio parahaemolyticus,导致的半透明后虫疾病. 这种精确的方法为有效的水产养殖疾病管理提供了高灵敏度和特异性.

科学领域:

水生动物卫生水生动物卫生
分子诊断学分子诊断
微生物病原体的产生

背景情况:

太平洋白水产养殖受到半透明后病 (TPD) 的威胁.
TPD是由携带vhvp-2基因的高度毒性Vibrio parahaemolyticus (VpTPD) 菌株引起的.
快速准确的检测方法对于TPD管理至关重要.

研究的目的:

开发一种快速,精确和可靠的VpTPD检测方法.
建立基于vhvp-2-向TaqMan探针的定量PCR (qPCR) 试验.
为了比较TaqMan qPCR试验与SYBR绿基qPCR试验的性能.

主要方法:

开发和优化vhvp-2-特定的基于TaqMan探针的qPCR试验.
测试灵敏度,特异性,放大效率和线性相关性的确定.
用样本评估矩阵干扰阻力和临床验证.
与先前建立的SYBR绿基qPCR试验进行比较分析.

主要成果:

在TaqMan qPCR测定达到检测极限14.64副本/反应的高效率 (109.25%) 和线性 (R2 = 0.9916).
该试验在临床样本中显示出100%的诊断灵敏度和特异性,没有对其他病原体的交叉反应.
与SYBR Green qPCR相比,TaqMan试验显示出优越的矩阵干扰抵抗性和更快的周转时间,尽管试剂成本更高.

结论:

基于TaqMan探针的qPCR试验非常精确,适合用于证实VpTPD的实验室诊断.
基于SYBR绿色的qPCR试验为大规模现场查提供了具有成本效益的替代方案.
双方法方法为水产养殖中TPD预防和检测提供了一个全面的战略.

关键词:

利托佩内亚斯 (Litopenaeus vannamei) 是一个水族群.实时PCR可以实现.半透明的后病半透明的后病这种病毒是Vibrio parahaemolyticus.

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