Durable resistance to fungal diseases is one of the major goals of wheat breeding. Our objective was to generate; for each of the resistance genes considered (Lr9 and Lr24 for leaf mst and Pml3 and Pm4b for powdery mildew); fiilly informative molecular markers; tightly linked to the resistance genes and suitable for rapid screening of large populations in early generations. Bulk segregant analysis is being used to generate such new markers. Different strategies are pursued: SSR screening; development of new AFLPs and characterisation of single-copy loci mapping in the target regions. In addition; the discriminatory power of markers so far identified is tested on a panel of elite bread and dumm wheat cultivars adapted to European conditions.
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