GM Crop Database

Database Product Description

Host Organism
Brassica rapa (Polish Canola)
Phosphinothricin (PPT) herbicide tolerance, specifically glufosinate ammonium.
Trait Introduction
Inter-specific cross with transgenic Brassica napus canola line T45.
Proposed Use

Production for human consumption and livestock feed.

Product Developer
Bayer CropScience (Aventis CropScience(AgrEvo))

Summary of Regulatory Approvals

Country Food Feed Environment Notes
Canada 1997 1997 View

Summary of Introduced Genetic Elements Expand

Code Name Type Promoter, other Terminator Copies Form
pat phosphinothricin N-acetyltransferase HT CaMV 35S 1 Native

Characteristics of Brassica rapa (Polish Canola) Expand

Center of Origin Reproduction Toxins Allergenicity

The species is native to India.

Canola flowers can self-pollinate, and they can also be cross-pollinated by insects and by wind.

Brassica species can contain erucic acid and various glucosinolates, which can be toxic. However, commercial canola varieties have been bred to reduce the levels of these substances. Canola may contain elevated levels of tannins, which reduce the digestibility of seed protein, and sinapine, which is a bitter substance that can reduce the palatability of feeds made from canola meal.

Occupational exposure to pollen and seed flour have been associated with allergic reactions in humans. There are no known allergic reactions to canola oil.

Donor Organism Characteristics Expand

Latin Name Gene Pathogenicity
Streptomyces viridochromogenes pat

S. viridochromogenes is ubiquitous in the soil. It exhibits very slight antimicrobial activity, is inhibited by streptomycin, and there have been no reports of adverse affects on humans, animals, or plants.

Abstract Collapse

The Brassica rapa canola hybrid, HCR-1, was derived from an inter-specific cross with the B. napus transformation event T45, that expresses a novel tolerance to glufosinate ammonium. This tolerance will allow the use of glufosinate ammonium as a post-emergence herbicide, thus providing an alternative for weed control in canola production, and reducing reliance on soil-incorporated herbicides. B. napus, transformed with the gene conferring glufosinate ammonium tolerance has been approved in May 1996.

Links to Further Information Expand

This record was last modified on Wednesday, February 17, 2016