Maize Bt11xGA21

Trait: This genetically modified maize is a hybrid resulting from the hybridisation of the maize line Bt11 and GA21. The hybrid expresses a noval Bt-toxin (Cry1Ab) which confers resistance to the european corn borer (Ostrinia nubilalis). The PAT protein leads to increased tolerance to glufosinate-containing herbicides. The EPSPS protein conferstolerance toglufosinate ammonium and is used as a marker.
Inserted genes (Bt11):
cry1A(b)- gene	Source: Bacillus thuringiensis kurstaki Function: The gene codes for a Bt-toxin, which protects the plant against the European corn borer (Ostrinia nubilalis).
pat- gene	Source: Soil bacterium (Streptomyces viridochromogenes) Function: This gene codes for the enzyme Phosphinothricin-Acetyltransferase (PAT) and leads to increased tolerance to glufosinate-containing herbicides. This gene is used as a marker gene.
Inserted genes (GA21):
m epsps- gene	Source: The m epsps-gene is derived from maize (Zea mays) Function: The cp4 epsps gene encodes for a version of EPSPS that is highly tolerant to inhibition by glyphosate.
Methods for the genetic modification: Microparticle bombardment of plant cells or tissue (event Bt11 and GA21).