为了培育个体更大、生长更快的以及在普通鳟鱼不能生存的条件下可以生存的鳟鱼,英国南安普敦大学用遗传工程技术植入鼠和蛙的基因,培育出一新的品种——超鳟鱼.诺尔曼·麦克莱恩领导的研究组通过把三个外来基因植入虹鳟希望达到这个目的.所有这三个基因已被分离,通过在体外人工繁殖的方法形成克隆.第一个基因来自鼠,它表现出抗重金属 In order to nurture trout that is larger, faster-growing and survive in conditions that ordinary trouts can not survive, the University of Southampton has genetically engineered the genes for mice and frogs to breed a new breed - Ultra trout. The research team led by Norman McLean hopes to achieve this by implanting three foreign genes into rainbow trout, all three of which have been isolated and cloned by artificial propagation in vitro. The first gene From the rat, it shows resistance to heavy metals