Technique for Testing Seeds Purity of Bt Transgenic Cotton by Using Marker Gene
According to GUS gene and NPTⅡgene transformed into Bt transgenic cotton cultivar "Guokang mian No1",three methods for testing the purity of the cotton seeds were established.The results indicated that the accurate rates were up to 98%,and the accurate rates were also up to 98% (compared to the result of bioassay) in testing the original Bt transgenic cotton group "201".The corresponding methods were suitable to every kind of Bt transgenic cotton cultivar with GUS gene or (and) NPTⅡgene.