抗草甘膦转基因大豆的获得

Obtaining of Transgenic Glyphosate-Resistant Soybean

大豆[Glycine max(L.)Merrill]是我国主要的粮食和油料作物,但近年来由于大量进口美国的转基因大豆,使我国的大豆生产严重萎缩。生物技术方法应用于改良大豆的农艺性状和产品质量以及对除草剂的耐受性,特别是对草甘膦的耐受性这一个重要性状。本研究以东农50为受体,采用农杆菌介导法,将抗草甘膦基因G10-EPSPS基因转入到大豆中,先后获得了3株T0代植株,在T0代进行抗性鉴定后,1株得到种子。试验通过对转基因后代的PCR检测、Western检测以及草甘膦抗性鉴定,证明外源基因已整合到植物基因组中,并在T0、T1和T2代稳定表达。本研究为转基因大豆育种提供了材料和数据。

Soybean（Glycine Max L.Merrill）is an important grain and oil crop in China.However its production has been seriously reduced due to large scale soybean import from US Methods of biotechnology have been applied to soybean for improvement of the agronomic traits and the quality of the product.One such agronomic trait important in soybean production is herbicide tolerance,in particular,tolerance to glyphosate herbicide.In this study,Agrobacterium-mediated method was used to introduce G10-EPSPS into soybean Dongnong 50.Three transgenic soybean plants were obtained.The obtained transgenic soybean plants were all resistant to glyphosate and 1event expressed the resistance stably in T0,T1 and T2generations.Molecular analysis by PCR and Western blot verified that G10-EPSPS was integrated into the soybean genome and inherited stably in T0,T1 and T2generations.It would be helpful for further study and soybean breeding.