Event Name: 98140
Event Code : DP-Ø9814Ø-6
Trade Name: Optimum™ GAT™
Crop: Zea mays L. - Maize, Corn
Developer: DuPont (Pioneer Hi-Bred International Inc.)
Method of Trait Introduction: Agrobacterium tumefaciens-mediated plant transformation
GM Traits: Glyphosate herbicide tolerance , Sulfonylurea herbicide tolerance
Commercial Trait: (Stacked) Herbicide Tolerance (HT)
Basic Genetic Modification
| Gene Introduced | Gene Source | Product | Function |
| zm-hra | Zea mays | herbicide tolerant acetolactase synthase (als) enzyme | confers tolerance to acetolactate synthase-inhibiting herbicides such as sulfonylurea and imidazolinone |
| gat4621 | Bacillus licheniformis | glyphosate N-acetyltransferase enzyme | catalyzes the inactivation of glyphosate, conferring tolerance to glyphosate herbicides |
Regulatory Approvals: Country, Year and Type of Approval
| Country | Food direct use or processing |
Feed direct use or processing |
Cultivation domestic or non-domestic use |
| Argentina | |||
| Australia | |||
| Canada | |||
| Mexico | |||
| New Zealand | |||
| South Korea | |||
| United States |
Last updated: June 14, 2013
Documents and Links
Event Description
Regulatory and Biosafety Information
- Canadian Food Inspection Agency
- Food Standards Australia New Zealand
- US Department of Agriculture - APHIS
- US Food and Drug Administration
Detection Methods
The GM Approval Database, or GMAD, is one of ISAAA’s unique features that compiles all the available information about biotech/GM crops that have been approved for planting and importation for food and feed, and commercialization. ISAAA sources out the information from publicly available decision documents per country, Biosafety Clearing Houses and peer-reviewed scholarly articles to maintain the credibility of the database. Your contribution can help expand and maintain the GMAD and make useful information more available to researchers, students, and the general public. You can help by donating as little as $10.