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Collaborative project: Fusarium Head Blight in Triticale – Implementation of New Methods for the Genetic Improvement of Resistance - Subproject 2
Project
Project code: 2814100706
Contract period: 01.05.2007
- 30.04.2010
Budget: 195,024 Euro
Purpose of research: Experimental development
Fusarium head blight (FHB) results in triticale (x Triticosecale) in considerable yield losses and mycotoxin contamination, mainly by deoxynivalenol (DON). Four populations with 100 to 250 progenies were phenotyped across several field environments and quantitative trait loci (QTL) analyzed. Populations revealed large genetic differences. Mean FHB ratings ranged between 8 and 43% depending on year and location. A prediction of DON content from the FHB rating was not possible. Mapping of two populations by molecular markers resulted in four and two QTL for FHB rating, respectively. Each of these QTL explained 8 to 66% of the phenotypic variance. Using advanced phenotyping methods and molecular markers will accelerate the selection of resistant triticale varieties with a reduced mycotoxin accumulation in the future.
Section overview
Subjects
- Plant Breeding
- Crop Protection
