Event Name: Bt11 x GA21
Event Code : SYN-BTØ11-1 x MON-ØØØ21-9
Trade Name: Agrisure™ GT/CB/LL
Crop: Zea mays L. - Maize, Corn
Developer: Syngenta
Method of Trait Introduction: Conventional breeding - cross hybridization and selection involving transgenic donor(s)
GM Traits: Glufosinate herbicide tolerance , Glyphosate herbicide tolerance , Lepidopteran insect resistance
Commercial Trait: (Stacked) Herbicide Tolerance (HT) + Insect Resistance (IR)
Basic Genetic Modification
| Gene Introduced | Gene Source | Product | Function |
| cry1Ab | Bacillus thuringiensis subsp. kurstaki | Cry1Ab delta-endotoxin | confers resistance to lepidopteran insects by selectively damaging their midgut lining |
| pat | Streptomyces viridochromogenes | phosphinothricin N-acetyltransferase (PAT) enzyme | eliminates herbicidal activity of glufosinate (phosphinothricin) herbicides by acetylation |
| mepsps | Zea mays | modified 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS) enzyme | confers 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 | |||
| Brazil | |||
| Canada | |||
| China | |||
| Colombia | |||
| European Union | |||
| Indonesia | |||
| Iran | |||
| Japan | |||
| Mexico | |||
| Paraguay | |||
| Philippines | |||
| Singapore | |||
| South Africa | |||
| South Korea | |||
| Taiwan | |||
| Thailand | |||
| Turkey | |||
| Uruguay | |||
| Vietnam |
* point mouse arrow over year for notes
Last updated: March 18, 2024
Documents and Links
Event Description
Regulatory and Biosafety Information
- 2018 Agricultural Biotechnology Annual - Table of Approved Traits in China
- Brazil CTNBio
- European Food Safety Authority
- FAO GM Foods Platform
- Japan Biosafety Clearing House
- Singapore Food Agency
- Syngenta Media Release
- Taiwan 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.