猪繁殖与呼吸综合征(porcine reproductive and respiratory syndrome,PRRS)是世界养猪业的一个巨大的威胁。近年来,此病给各国养猪业造成了巨大的经济损失。本文立足于反向遗传操作技术,介绍了调控PRRS病毒粒子的感染性、基因组RNA复制、亚基因组mRNA转录以及翻译等重要过程的顺式调控元件的一级序列和高级结构的最新研究进展。
Porcine reproductive and respiratory syndrome virus (PRRSV) remains a tremendous threat to swine industry worldwide, causing significant economic losses in the past years. This review summarizes the application of reverse genetic system in PRRSV biology and recent research progress in the primary sequences and high-ordered structures of PRRSV cis-acting element in regulating virus infection, genomic replication, sg mRNA transcription and gene expression,