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Mapping of novel resistance sources to late blight from Solanum wild species and utilization for potato breeding programs
Project
Project code: JKI-ZL-08-003
Contract period: 01.01.2009
- 31.12.2019
Purpose of research: Applied research
The development and utilization in potato breeding of novel resistance sources are absolutely required in consequence of the increasingly restricted availability of efficient pesticides and the rapid adaptation of the oomycete Phytophthora infestans (Mont.) de Bary. Plant genetic resources can be used to increase the pathogen resistances in potato. According to wide evaluations gene bank accessions of the wild species Solanum pinnatisectum were observed with resistance and susceptibility to foliage blight caused by P. infestans. Based on backcrossing- and screening programs the mode of inheritance of pathogen resistances will be determined. Segregating progenies will be used to map the resistance genes and develop respective markers for marker-assisted selection in potato breeding. This project makes an important contribution to improve the utilization of plant genetic resources and is important because of the estimation of the breeding progress in terms to improve the disease resistance.
After crossing of an accession of Solanum pinnatisectum resistant to foliage blight and a susceptible accession high resistant genotypes of the F1 were selected and used for further crosses with the susceptible accession of the wild species. In the result three segregating populations of the BC1 generation with 80-100 individuals each were produced.
Section overview
Subjects
- Crop Protection
- Climate Change
Framework programme
Funding programme
Excutive institution
Institute for Breeding Research on Agricultural Crops (JKI-ZL)
