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Preliminary study on the identification of corn borer resistance of Bt transgenic plant

LIU Zong hua, SU Hai ling,TANG Ji hua,JI Hong qiang,et al (Henan Agricultural University,Zhengzhou 450002,China)  
The identification of corn borer resistance(CBR) has been made for the 4 popular corn inbred lines and their Bt transgenic F 1 plants composed of crossing the inbred lines with 91-1-8,by feeding in lab and inoculating in the field.The results show that great differences in CBR exist among different transgenic materials as well as among individuals within the same materal.A few plants express high resistance,while some other plants seldom express resistance.The expression of external Bt toxic protein gene varies with the genetic back grounds,and higher CBR expression exists in Mo17 background.
【Fund】: 河南省自然科学基金
【CateGory Index】: S513.03;Q789
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