反向遗传操作技术可以在DNA水平上对RNA病毒基因组进行各种修饰或改造,然后通过拯救病毒的表型变化来判断这些基因操作的效果,从而可以对病毒基因组的表达调控机制、病毒致病的分子机理等进行研究。本文就反向遗传操作技术在PRRSV基因功能结构研究以及新型疫苗开发等研究中的应用进行了综述。%Reverse genetics can run a variety of modifying and transforming at DNA level for RNA virus genome, and then these genetic manipulation effect is judged by phenotype change of rescued virus. So it can be used to research the expression and regulation mechanism of virus genome and molecular mechanism of virus pathogenicity. This review mainly focused on the progress of applications of reverse genetics in the genome functional analysis and new type of vaccine development of PRRSV.
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