General informationNotification NumberB/SE/05/8615Member State to which the notification was sentSwedenDate of acknowledgement from the Member State Competent Authority03/11/2005Title of the ProjectPotato with improved resistance to Phytophthora infestansProposed period of release:01/01/2006 to 31/12/2010Name of the Institute(s) or Company(ies)Plant Science Sweden AB, Herman Ehles väg 2-4
SE-268 31 Svalöv
3. Is the same GMPt release planned elsewhere in the Community?Yes: Germany; Netherlands; Has the same GMPt been notified elsewhere by the same notifier?NoGenetically modified plantComplete name of the recipient or parental plant(s)
2. Description of the traits and characteristics which have been introduced or modified, including marker genes and previous modifications:- improved resistance to Phytophthora infestans
|Common Name||Family Name||Genus||Species||Subspecies||Cultivar/breeding line|
|potato||solanaceae||solanum||solanum tuberosum||tuberosum||P698, P835, P880|
- marker gene ahas (tolerance to Imidazolinones) as selection gene to identify transgenic cells in tissue cultureGenetic modification3. Type of genetic modification:Insertion; 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. infestans6. Brief description of the method used for the genetic modification:Plasmid 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:Not applicable.Experimental Release1. Purpose of the release:- Evaluate resistance to Phytophthora infestans
- Investigate the general agricultural value of the modified lines
- Produce seed potatoes for future trials2. Geographical location of the site:Landskrona, Halmstad, Kristianstad, Lidköping, Skara, Falköping, Habo, Tidaholm, Motala and Mjölby municipalities.3. Size of the site (m2):Max 15 000 m2 at each site annually4. 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:No previous release of the same GM-plant material. No adverse impacts on the environment or human health have been recorded from other potato lines with ahas gene in previous field trials in Sweden since 2002 or with introduced Rpi-blb2 gene during 2005.Environmental Impact and Risk ManagementSummary of the potential environmental impact from the release of the GMPts:The genetically modified potato lines contain two R-genes, Rpi-blb1 and Rpi-blb2, from S. bulbocastanum for conferring improved resistance to P. infestans. Many conventional potato varieties also contain additional R-genes that have been introgressed from wild Solanum species. An intended effect of the introduced trait is an increased performance in potato fields exposed to Phytophthora infestans. This possible selective advantage, however, is of importance only in the agricultural field, and will not be decisive for the survivability in the surrounding environment. The ahas gene expressed in the potato plants imparts tolerance to the herbicidal active substance Imazamox (Imidazolinone herbicide) to the shoots during the selection process in cell culture. This confers no selective advantage in the field or outside the field since Imidazolinone herbicides are not approved for use on crops in Sweden and since no field tolerance is expected in the potato plants. No difference with respect to persistence in agriculturally utilized habitats or invasiveness into natural habitats as compared to conventional potato varieties is expected.
Through the measures that are taken during the release, isolation distance from other cultivated potatoes, and absence of 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 a potato plant outside the trial, no consequences are to be expected, since agricultural potato propagation 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 which apply also to conventional potatoes.Brief description of any measures taken for the management of risks:- Isolation distance: 20 m
- Careful harvest to avoid volunteers
- Transportation in labeled containers in separate vehicles, closed containers or double closed sacks if transportation with other material
- Adjusted crop rotation: fallow field the following year, no potato crop for one additional year
- Post harvest monitoring and destruction of any volunteers
- Complete destruction of plant waste materialSummary of foreseen field trial studies focused to gain new data on environmental and human health impact from the release:Not planned.Final reportEuropean Commission administrative informationConsent given by the Member State Competent Authority:Yes28/02/2006 00:00:00Remarks: