Figure 1.

The comparison of the workflows of the two GM soybean screening methods ((+) and (−) represent positive and negative results in screening analysis, respectively). (A) The workflow of the universal screening method: This method analyzes three screening targets, including the endogenous gene of the soybean. Even though negative signals at P-35S and T-nos were observed, an additional analyzing step is needed to determine the presence/absence of GMO. (B) The workflow of the qPCR array developed in this study: the sample, confirmed all negative signals except for that of lectin at the screening analysis, can be judged to be a non-GM soybean.