GM Crop Database

Database Product Description

GA21 x MON810 (MON-ØØØ21-9, MON-ØØ81Ø-6)
Host Organism
Zea mays (Maize)
Resistance to lepidopteran pests and glyphosate herbicide tolerance
Trait Introduction
Traditional plant breeding and selection
Proposed Use

Production for human consumption and livestock feed.

Product Developer
Monsanto Company

Summary of Regulatory Approvals

Country Food Feed Environment Notes
European Union 2005 2005 View
Japan 2003 2003
Korea 2004
Philippines 2004 2004
South Africa 2003 2003

Summary of Introduced Genetic Elements Expand

Code Name Type Promoter, other Terminator Copies Form
epsps 5-enolpyruvyl shikimate-3-phosphate synthase HT rice actin I promoter and intron sequences ; ribulose-1,5-bisphosphate carboxylase oxygenase (RuBisCo) derived chloroplast transit peptide squences (from corn & sunflower) A. tumefaciens nopaline synthase (nos) 3'-untranslated region 3* Modified by in vitro mutagenesis; single insertion site with 3 complete copies of EPSPS cassette plus 3 incomplete copies
cry1Ab Cry1Ab delta-endotoxin (Btk HD-1) IR enhanced CaMV 35S, maize HSP70 intron None. Lost through 3' truncation during integration 1 Truncated

Characteristics of Zea mays (Maize) Expand

Center of Origin Reproduction Toxins Allergenicity

Mesoamerican region, now Mexico and Central America

Cross-pollination via wind-borne pollen is limited, pollen viability is about 30 minutes. Hybridization reported with teosinte species and rarely with members of the genus Tripsacum.

No endogenous toxins or significant levels of antinutritional factors.

Although some reported cases of maize allergy, protein(s) responsible have not been identified.

Donor Organism Characteristics Expand

Latin Name Gene Pathogenicity
Bacillus thuringiensis subsp. kurstaki EC2.4.2.19

While target insects are susceptible to oral doses of Bt proteins, no evidence of toxic effects in laboratory mammals or birds given up to 10 µg protein/g body weight.

Links to Further Information Expand

Department of Agriculture, Bureau of Plant Industry European Commission: Community Register of GM Food and Feed Japanese Biosafety Clearing House, Ministry of Environment

This record was last modified on Friday, March 26, 2010