Date of publication: October 17,
2005
Source:
http://gmoinfo.jrc.it/gmp_browse_geninf.asp
Notification number:
B/NL/05/03
Member State:Netherlands
Date of Acknowledgement:30/08/2005
Title of the Project: Potato with improved resistance
to Phytophthora infestans
Proposed period of release From:01/01/2006
To:31/12/2010
Name of the Institute(s) or Company(ies): BASF Plant
Science GmbH;
3. Is the same GMPt release planned elsewhere in the
Community?
Yes: Germany; United Kingdom; Sweden
4 - Has the same GMPt been notified elsewhere by the same
notifier?
No
Genetically
modified plant
1. Complete name of the
recipient or parental plant(s)
|
Common Name
|
Family Name
|
Genus |
Species
|
Subspecies
|
Cultivar/breeding line
|
| potato
|
solanaceae |
solanum |
solanum tuberosum |
tuberosum |
P698,
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:
Insertion;
4. 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 Competent
Authority: Not Known |
