Notification report

General information

Notification Number

Member State to which the notification was sent
Czech Republic

Date of acknowledgement from the Member State Competent Authority

Title of the Project
Field trials of genetically modified herbicide tolerant maize event GA21

Proposed period of release:
01/04/2006 to 31/12/2011

Name of the Institute(s) or Company(ies)
Syngenta Czech, s.r.o., ;

3. Is the same GMPt release planned elsewhere in the Community?
Spain; France;

Has the same GMPt been notified elsewhere by the same notifier?

Genetically modified plant

Complete name of the recipient or parental plant(s)
Common NameFamily NameGenusSpeciesSubspeciesCultivar/breeding line
maizepoaceaezeazea maysmays

2. Description of the traits and characteristics which have been introduced or modified, including marker genes and previous modifications:
A gene encoding a protein capable of conferring a herbicide tolerant characteristic has been inserted.

Genetic modification

3. Type of genetic modification:

In case of insertion of genetic material, give the source and intended function of each constituent fragment of the region to be inserted:
Regulatory sequences: Promoter, intron and exon sequences derived from rice. The function of these sequences is to control expression of the herbicide tolerance gene.

Optimised transit peptide: N-terminal optimised transit peptide sequence constructed based on transit peptide sequences from maize and sunflower.

Herbicide tolerance gene: epsps (5-enolpyruvylshikimate-3-phosphate synthase) gene derived from maize. The function of the product of this gene is to confer tolerance to herbicide products containing glyphosate.

NOS terminator: Termination sequence of the nopaline synthase gene, isolated from Agrobacterium tumefaciens. The function of this sequence is to signal the termination of the herbicide tolerant gene expression.

6. Brief description of the method used for the genetic modification:
Event GA21 was produced via microprojectile bombardment of maize suspension culture cells.

7. If the recipient or parental plant is a forest tree species, describe ways and extent of dissemination and specific factors affecting dissemination:
Not applicable

Experimental Release

1. Purpose of the release:
The purpose of the field releases is to gain further information relating to the performance of the event under European conditions and to produce maize for comparative analysis. They will also allow the further assessment of the event in the environment.

2. Geographical location of the site:
1. Troubsko, Jihomoravský region, 2. Kromeriz - Jarohnevice , Zlínský region, 3. Ivanovice na Hané, Zlínský region

Remark: the authorisation was prolonged to 31/12/2011, in 2008 two sites were added – Praha and Nechanice, region Kralovehradecky, and one site was terminated (Troubsko)

3. Size of the site (m2):
Less than 10 000 maize plants modified with GA21 will be grown in total at each of the 3 locations, the total area for GA21 plants is no more than 1000 m2, the total size of the whole trial is not more than 2500 m2 (taking non GM maize into account) including 8 border rows at each of the 3 trials sites.

4. Relevant data regarding previous releases carried out with the same GM-plant, if any, specifically related to the potential environmental and human health impacts from the release:
Evidence from previous field trials in the USA suggests that the genetically modified lines do not differ from the recipient plant in mode or rate of reproduction, dissemination or survivability of the plant. Event GA21 has been approved for commercial cultivation in the USA, Canada, Argentina and Japan. The event is currently cultivated in the USA and Canada with no adverse effects reported.

Environmental Impact and Risk Management

Summary of the potential environmental impact from the release of the GMPts:
In summary, no immediate or delayed adverse effects as a result of the direct and indirect interaction of the genetically modified maize with the environment when compared to non-modified maize have been identified.

Brief description of any measures taken for the management of risks:
The field trials will be no less than 200 m from other maize fields and will be surrounded by a border of conventional maize.
The products from the trials may be used for analysis and will not be used for human food or animal feed.
Plant material remaining after harvest will be ground and incorporated into the soil.
The sites will be monitored for one year after the harvest and any volunteer maize appearing will be eliminated before flowering. During this year, maize will not be grown on the trial sites.

Summary of foreseen field trial studies focused to gain new data on environmental and human health impact from the release:
The trials have not been designed to specifically gain new data on the environment and human health impact of the release. They will allow further assessment of the event in the environment

Final report

European Commission administrative information

Consent given by the Member State Competent Authority:
14/04/2006 00:00:00