Notification report

General information

Notification Number

Member State to which the notification was sent

Date of acknowledgement from the Member State Competent Authority

Title of the Project
Potato with improved resistance to Phytophthora infestans

Proposed period of release:
01/01/2006 to 31/12/2010

Name of the Institute(s) or Company(ies)
BASF Plant Science GmbH, Carl-Bosch-Strasse 38, D-67056 Ludwigshaven GERMANY;

3. Is the same GMPt release planned elsewhere in the Community?
Germany; United Kingdom; Sweden;

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 tuberosumtuberosumP698, P835 and P880

2. Description of the traits and characteristics which have been introduced or modified, including marker genes and previous modifications:
-improved resistance to Phytophthora infestans
-marker gene ahas (tolerance to Imidazolinones) as selection 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.
-Recombinant ahas gene, A. thaliana, imidazolinone tolerance in plant material.
-Promoter and terminator from nopaline synthase gene, A. tumefaciens, gene regulation.
-Resistance genes Rpi-blb1 and Rpi-blb2, Solanum bulbocastanum, with endogenous promoters and terminators for improved resistance to P. infestans

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

7. If the recipient or parental plant is a forest tree species, describe ways and extent of dissemination and specific factors affecting dissemination:

Experimental Release

1. Purpose of the release:
- Evaluate resistance to P. infestans
- Investigate the general agricultural value of the modified lines
- Produce seed potatoes for future trials

2. Geographical location of the site:
The location of one release site will be at Borger-Odoorn and the location of the second release site will be in Lingewaard

3. Size of the site (m2):
10.000 m2 per site maximally will be planted annually

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 have been no previous releases of the same GM-plants. For other potato lines with ahas gene in previous field trials in Netherlands and other EU countries since 2002 or with an introduced Rpi-blb2 gene during 2005 in Sweden no adverse impacts on the environment or human health have been recorded.

Environmental Impact and Risk Management

Summary of the potential environmental impact from the release of the GMPts:
The genetically modified potato lines contain two NBS-LRR-genes, Rpi-blb1 and Rpi-blb2, from S. bulbocastanum for conferring improved resistance to P. infestans. Many conventional potato varieties also contain additional NBS-LRR-genes that have been introgressed from wild Solanum species. An intended effect of the introduced trait is an increased survivability in potato fields exposed to P. infestans. This possible selective advantage, however, is of importance only in the agricultural field, and will not improve the survivability in the surrounding environment. The reduced need for fungicides on these lines can easily be identified as an environmental benefit.
The ahas gene expressed in the potato plants imparts tolerance to the herbicidal active substance Imazamox to the shoots during the selection process in cell culture. This confers no selective advantage in the field since Imidazolinone herbicides are not approved for use on crops in NL and since no field tolerance is expected in the potato plants. No difference with respect to persistence in agriculturally utilised habitats or invasiveness into natural habitats as compared to conventional potato varieties is expected. Through the measures which are taken during the release, distance from or absence of conventionally cultivated potatoes or wild species, the possibility of any gene transfer can be virtually ruled out. Even in the very improbable event that pollen were to be transferred to genetically unmodified potato plants, no consequences are to be expected, since potato propagation conventionally takes place via tubers and not via seeds. The interactions of the genetically modified potato line with non-target organisms and the effects resulting from this will be comparable to those with conventional potato varieties. Furthermore, no toxic or allergenic effects are expected on the basis of the improved resistance to P. infestans or the expressed AHAS protein. No effects on biogeochemical processes are expected, other than those that apply also to conventional potatoes.

Brief description of any measures taken for the management of risks:
-isolation distance: 10 m
-careful harvest to avoid volunteers
-transportation in specific vehicles and closed containers
-adjusted crop rotation: no potato crop for the following year to allow volunteer monitoring and control
-destruction of waste material

Final report

European Commission administrative information

Consent given by the Member State Competent Authority:
Not known