随着转基因植物的商业化 ,植物转基技术将为农业生产带来一场新的革命。但目前仅仅把基因导入植物已经不能满足现代农业的要求。新的转化技术不仅要求把基因导入农艺性状优良的品种中 ,呈单拷贝 ,不带辅助序列 (标记基因 ) ,而且转基因的表达必需可预测 ,并在不同的转化体中表达一致。论文讨论标记基因及与标记基因消除的转化体系有关的问题 With the commercialization of genetically modified plants, plant-based technology will bring a new revolution in agricultural production. However, the current gene transfer to plants can no longer meet the requirements of modern agriculture. The new transformation technique not only requires that the gene be introduced into a variety of agronomic traits with a single copy without a helper sequence (marker gene), and the expression of the transgene must be predictable and consistent among the different transformants. The paper discusses marker genes and problems associated with transformation systems that eliminate marker genes