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
Release into the environment of genetically modified potatoes with the change of sugar content in tubers

Proposed period of release:
01/04/2006 to 30/09/2010

Name of the Institute(s) or Company(ies)
Vesa Velhartice and Institute of Experimental Botany, Czech Academy of Sciences, ;

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

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
potatosolanaceaesolanumsolanum tuberosumtuberosum

2. Description of the traits and characteristics which have been introduced or modified, including marker genes and previous modifications:
Trait: increased metabolism of reducing sugars in tubers
Marker gene: nptII gene (tolerance to kanamycin) as selectable marker gene to identify transgenic cells in tissue culture

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:
- T-DNA borders, pTiT37, for incorporation into plant chromosome
- nptII gene, E. coli, kanamycin tolerance in plant material
- Promoter and terminator from nopaline synthase gene, A. tumefaciens, gene regulation
- Promoter of patatin gene pB33, S. tuberosum, gene regulation, and terminator from octopine synthase gene, A. tumefaciens, gene regulation
- Lbpfk gene, Lactobacillus bulgaricus, bacterial phosphofructokinase

6. Brief description of the method used for the genetic modification:
Plasmid DNA was introduced into the potato lines by Agrobacterium-mediated gene transfer technology. This is standard technology for potato transformation.

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 release is, to compile data on agronomical performance, as well as to collect plant material for sugar content analysis, as well as to generate seed tubers.

2. Geographical location of the site:
Velhartice (Plzensky region)

3. Size of the site (m2):
less than 1 ha

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:
There has been previous release of potato lines transformed with the same constructs in the Czech Republic. No adverse impacts on the environment or human health have been recorded in any of the trials.

Environmental Impact and Risk Management

Summary of the potential environmental impact from the release of the GMPts:
The genetically modified potato lines show decrease in reducing-sugar content in cold-stored tubers. No difference regarding persistence in agricultural habitats or invasiveness in natural habitats compared to conventional potato varieties is expected. Nor is it expected that a selective advantage or disadvantage is conferred to the GM lines via the introduced traits. Due to the measures to be taken during the release (distance to or absence of cultivated and wild relatives) the potential for gene transfer will be virtually excluded. Interactions of the GM potato lines with non-target species and resulting effects will be comparable to those of conventional potato varieties. No toxic or allergenic effects are expected from bacterial phosphofructokinase (located in tubers mainly), nor from the neomycin phosphotransferase. Measures in place under current field trial practice will protect the trial from damage by animals as well as safeguard that all seed and plant material is properly managed, harvested, stored, transported or disposed of to minimize or prevent contact with humans or animals. No effects are expected on biogeochemical processes. The GM potato lines will be cultivated under conventional agricultural practices.

Brief description of any measures taken for the management of risks:
An isolation distance of 10 m to other potato varieties will be observed. Planting and harvesting equipment will be cleaned on site to prevent the dispersal of GM tubers. There will be no potato cultivation on the release area the year following the release. Potential volunteers will be monitored and removed according to conventional agricultural practice. During the release the trial site will be monitored at defined intervals.

Final report

European Commission administrative information

Consent given by the Member State Competent Authority:
04/05/2006 00:00:00