2001 AACC Annual Meeting Charlotte, North Carolina October 14-18, 2001 Charlotte Convention Center

More and more GMO traits are coming onto the market, with different traits approved in different countries. In the case of maize, from more than a dozen transgenic maize events approved in the U.S., only four are also approved for being introduced into the EU market. In addition, with every new GMO event entering the market the analytical determinations are becoming more complex. As a consequence, companies like GeneScan are developing methods to simplify the analytical process by employing DNA arrays. DNA arrays are small surfaces onto which many different DNA sequences can be immobilized and analyzed in parallel. These methods will be applied to reduce the effort in GMO analysis by simultaneously determining the presence or absence of the whole panel of relevant genetic modifications. A combination of both techniques, first arrays followed by subsequent quantification of specific GMO positives, will allow both the rapid and economical screening for GMO events, approved and non-approved once, and the quantification of those GMOs where threshold regulations apply.