人工诱导鱼类多倍体是动物染色体工程的重要课题。鉴于三倍体鱼的不育性和成活率高、生长快等特点,国内外采用理化手段直接诱导三倍体鱼已在三棘刺鱼(Gasterosleus aculeatus(L.))、鲽鱼(Pleuronectes platessa)、鲤鱼(Cyprinus carpio L.)、草鱼(Ctenopharyngodonidellus)、草鱼(♀)×团头鲂(Megalobrama amblycephala)(♂)杂种,以及白鲢(Hypophthalmichthysmolitrix),等十多种鱼获得成功。有的已开始用于实践并取得较明显的经济效益。尽管如此,诱导三倍体鱼的技术毕竟不是一劳永逸的方法。理想的方法是人工诱导获得能育的异源四倍体(或同源四倍体),再与二倍体鱼杂交得三倍体鱼,从而为大规模生产三倍体鱼提供一条行之有效的捷径。陆仁后等(1982),用草鱼尾鳍细胞诱导成同源四倍体细胞并移至泥鳅去核卵得到心跳期 Artificially induced fish polyploidy is an important issue in animal chromosome engineering. In view of the sterility, high survival rate and fast growth of the triploid fish, the physical and chemical methods at home and abroad were used to directly induce the triploid fish in the areas of Gasterosleus aculeatus (L.), Pleuronectes platessa , Cyprinus carpio L., Ctenopharyngodonidellus, Megalobrama amblycephala (♂) hybrids, and silver carp (Hypophthalmichthys molitrix) were successfully harvested. Some have begun to practice and obtain more obvious economic benefits. However, the technique of inducing triploid fish is not a once and for all, however. The ideal method is to artificially induce fertile allotetraploid (or autotetraploid) and then hybridize with diploid fish to obtain triploid fish, thus providing a trip for large-scale production of triploid fish Effective shortcut. Lu Renhou et al (1982), using grass carp caudal fin cells induced into tetraploid cells and moved to loach nucleus to get heartbeat 