Abstract
MILDEW (Erysiphe graminis, F.sp. avenae) can reduce the yield of cultivated oats by 30% (ref. 1) and is the most important disease of the crop in the UK. The ability of the pathogen to change either by mutation or recombination, giving rise to strains which can effectively attack previously resistant cultivars, leads to a continuous search for further sources of resistance. Genotypes of related weed species of Avena have been isolated that are completely resistant to mildew. A genotype of the tetraploid species Avena barbata (2n = 28) collected in Algeria is resistant to all the prevalent races of mildew and would form a valuable source of resistance to the pathogen. We now report the successful transfer of this source of mildew resistance into the cultivated oat. This provides the oat breeder with a new source of mildew resistance to use in breeding programmes.
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AUNG, T., THOMAS, H. Transfer of mildew resistance from the wild oat Avena barbata into the cultivated oat. Nature 260, 603–604 (1976). https://doi.org/10.1038/260603a0
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DOI: https://doi.org/10.1038/260603a0
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