本综述着重讨论在转基因动物中外源基因转移及表达的分子机制,包括外源基因在宿主染色体上整合的分子基础及其影响因素;启动子、内含子、增强子、反式作用因子及载体等各种因素对外源基因在宿主内表达的调节。 This review focuses on the molecular mechanisms of foreign gene transfer and expression in transgenic animals, including the molecular basis of foreign gene integration on the host chromosome and its influencing factors; promoters, introns, enhancers, trans-acting factors and vectors And other factors on the expression of foreign genes in the host regulation.