| QTL mapping and marker assisted breeding for improved Fusarium head blight resistance in wheat |
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Fusarium head blight (FHB, scab) causes relevant yield and quality losses. Chemical and agronomic control measures are either not available or not feasible. Breeding resistant cultivars is the method of choice for FHB control. Genetic variation for FHB resistance is documented. However, breeding for FHB resistance is difficult. The goal of the proposed work is to contribute to a sustainable solution of the problem of Fusarium diseases of small grain cereals by advanced plant breeding techniques. It is part of a joint project between Austria and Iran. The application of molecular markers could complement classical plant breeding. Aim of this proposal is therefore to identify and verify molecular markers linked to FHB resistance genes for use in marker assisted selection. Different types of DNA markers will be applied. Strong emphasis will be placed on mapping candidate genes putatively involved in FHB resistance (RPL3 genes and PDR5-like genes). Markers which detect Fusarium resistance and low mycotoxin accumulation will be made available for marker assisted backcross breeding with the aim to develop locally adapted wheat cultivars with improved Fusarium resistance in much shorter time than by conventional breeding.
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