GM Crop Database

Database Product Description

NS738, NS1471, NS1473
Host Organism
Brassica napus (Argentine Canola)
Trade Name
Clearfield™ 45A71, 45A72 -- Pursuit, Odyssey
Imidazolinone herbicide tolerance, specifically imazethapyr.
Trait Introduction
Selection of somaclonal variants from microspore cultures following chemical mutagenesis.
Proposed Use

Production for human consumption and livestock feed.

Product Developer
Pioneer Hi-Bred International Inc.

Summary of Regulatory Approvals

Country Food Feed Environment Notes
Canada 1995 1995 1995

Summary of Introduced Genetic Elements Expand

Code Name Type Promoter, other Terminator Copies Form
als acetolactate synthase MUT Selected following chemical mutagenesis.

Characteristics of Brassica napus (Argentine 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.


Links to Further Information Expand

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