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Establishment of a harmonised methodology for testing the resistance of potato cultivars to potato wart disease (Synchytrium endobioticum) in the EU
Project
Project code: JKI-A-08-1201
Contract period: 01.03.2013
- 28.02.2015
Purpose of research: Basic research
Potato wart disease, Synchytrium endobioticum, is one of the major quarantine diseases for the European potato production. The disease can only be controlled by phytosanitary and quarantine measures. In this context the cultivation of resistant cultivars is of major importance. In Europe, particularly the pathotypes 1, 2, 6, 8 and 18 are of greatest relevance. The assessment of potato cultivars for resistance to potato wart is carried out in the majority of the EU countries by bioassays according to the Glynne-Lemmerzahl method. However, these bioassays are conducted under different conditions and assessed by different scoring methods. In comparative studies of different test protocols, only tests with pathotyp 1 were found in harmony for both, all testing laboratories and the two protocols used. Bioassays with S. endobioticum are laborious and time consuming and must be carried out in authorized laboratories. Their replacement by molecular techniques would therefore be very desirable. Objectives: (1) To perform comparative studies of the Glynne-Lemmerzahl method to develop a harmonised methodology for resistance testing of potato cultivars. (2) To develop a core differential set of potato cultivars to check the identity of wart pathotypes used in different EU countries. (3) To verify the usability of a DNA marker for the evaluation of resistance to pathotyp. Utilisation: Harmonized methods for resistance testing of potato wart disease will allow a mutual acknowledgement of the results in the future and facilitate registration and marketing of potato cultivars. The use of DNA marker techniques will provide a cost-effective, evaluation of pathotyp 1 resistance independently from the season and it will speed up the breeding progress. Potato cultivars with improved resistance will open new markets in Eastern Europe and Russia and will enable a more efficient control of potato wart disease.
Section overview
Subjects
- Plant Breeding
- Crop Protection
Framework programme
Funding programme
Excutive institution
Institute for Plant Protection in Field Crops and Grassland (JKI-A)