GM Crop Database

Database Product Description

Host Organism
Zea mays (Maize)
Herbicide Tolerance
Trait Introduction
Direct DNA transfer system
Proposed Use

Production for human consumption and livestock feed.

Product Developer
Monsanto Company

Summary of Regulatory Approvals

Country Food Feed Environment Notes
United States 1996 1996

Introduction Expand

On July 2, 1996, Monsanto Company submitted summary information on several genetically engineered maize lines including MON 831 to support their safety and nutritional assessment. MON 830 is a maize line resulting from genetic modifications to confer tolerance to glyphosate. Glyphosate resistance is due to expression of the protein 5-enolpyruvylshikimate-3-phosphate synthase (CP4 EPSPS). The introduced glyphosate oxidoreductase (GOX) protein also confers glyphosate tolerance. 

Summary of Introduced Genetic Elements Expand

Code Name Type Promoter, other Terminator Copies Form
CP4 epsps 5-enolpyruvyl shikimate-3-phosphate synthase HT

E35S promoter and the corn hsp70 intron

NOS 3' termination sequence

gox GOX glyphosate oxidoreductase HT

E35S promoter and the corn hsp70 intron

NOS 3' termination sequence

nptII neomycin phosphotransferase II SM

bacterial promoter

1 complete, 1 rearranged

Not expressed in plant tissues because of bacterial promoter.

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
Agrobacterium tumefaciens strain CP4 CP4 epsps

Agrobacterium tumefaciens is a common soil bacterium that is responsible for causing crown gall disease in susceptible plants. There have been no reports of adverse effects on humans or animals.

Modification Method Expand

Coming soon.

Characteristics of the Modification Expand

Coming soon.

Environmental Safety Considerations Expand

Coming soon.

Food and/or Feed Safety Considerations Expand

Coming soon.

This record was last modified on Monday, February 13, 2017