Event Name: GA21 x MON810
Event Code : MON-ØØØ21-9 x MON-ØØ81Ø-6
Trade Name: Roundup Ready™ YieldGard™ maize
Crop: Zea mays L. - Maize, Corn
Developer: Monsanto Company (including fully and partly owned companies)
Method of Trait Introduction: Conventional breeding - cross hybridization and selection involving transgenic donor(s)
GM Traits: Glyphosate herbicide tolerance , Lepidopteran insect resistance
Commercial Trait: (Stacked) Herbicide Tolerance (HT) + Insect Resistance (IR)
Basic Genetic Modification
| Gene Introduced | Gene Source | Product | Function |
| mepsps | Zea mays | modified 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS) enzyme | confers tolerance to glyphosate herbicides |
| cry1Ab | Bacillus thuringiensis subsp. kurstaki | Cry1Ab delta-endotoxin | confers resistance to lepidopteran insects by selectively damaging their midgut lining |
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 |
| European Union | |||
| Japan | |||
| Philippines | |||
| South Africa | |||
| South Korea |
* point mouse arrow over year for notes
Last updated: March 11, 2015
Documents and Links
Event Description
Regulatory and Biosafety Information
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.