We use cookies on our website. Some are necessary for the operation of the website. You can also allow cookies for statistical purposes. You can adjust the data protection settings or agree to all cookies directly.
Data Protection Declaration
Imprint
Novel Sources of Resistance to Globodera pallida in Starch Potatoes
Project
Project code: JKI-ZL-08-3208
Contract period: 01.06.2016
- 30.06.2019
Purpose of research: Applied research
The production of starch potatoes is important in miscellaneous regions of Germany. Numerous pathogens and pests threaten the economy of production. Most hazardous are quarantine pests like potato cyst nematodes (Globodera pallida, G. rostochiensis). Cyst nematodes are the most important threat in some regions of starch potato production in Germany. Resistant varieties are the only way for suppression due to economical and ecological reasons. Only a few varieties show resistance against the most distributed species G. pallida pathotype Pa3 currently. G. pallida populations virulent against Pa3 were identified in the meantime and a successful suppression is not possible in some areas. Development and allocation of pre-breeding material resistant against G. pallida Pa3 and the novel virulence type “Emsland” is the project’s objective. Solanum wild species as potential resources for resistance will be used for breeding resistant starch varieties. The introgression of resistance genes into actual starch varieties will be accelerated by the development of molecular markers and allows pyramidisation of different resistance genes. The political aim of this project is to improve the usability of starch potatoes with higher resistance and higher product quality to be more competitive to other crops.
Production of starch potatoes is challenged by quarantine pests such as potato cyst nematodes (Globodera pallida, G. rostochiensis). Growing resistant varieties is the only option for fighting these pests. ln the project, pre-breeding germplasm resistant to the novel, virulent G. pallida Pa3 pathotype 'Emsland' shall be generated and resistance be genetically mapped. In the period under review, we succeeded in identizying wild-species accessions with relatively low susceptibility to Pa3 'Emsland' in a vessel experiment and in producing interspecific offspring seeds by crossing these accessions to susceptible pre-breeding potato clones.
Section overview
Subjects
- Plant Breeding
- Crop Protection
Framework programme
Funding programme
Excutive institution
Institute for Breeding Research on Agricultural Crops (JKI-ZL)
