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育种工作者都希望培育出性状优良的品种,从20世纪80年代开始,科学家试图利用基因工程技术,将外源或经体外修饰后的内源基因导入植物,改良植物的
Breeding workers are hoping to breed good traits. Since the 1980s, scientists have tried to use genetic engineering techniques to introduce exogenous or in vitro modified endogenous genes into plants to improve plant