Abstract
Genetic fingerprinting has been used to investigate the evolution of the barley powdery mildew pathogen, Erysiphe graminis f.sp. hordei, as this fungus adapts to new host mildew resistance genes. The probe used in fingerprinting, E9, is homologous to dispersed, repetitive sequences, and can be used to identify clones of E.g. f.sp. hordei. Using this system, it has been shown that host resistances may lose their effectiveness because of the emergence of just one or two clones of E.g. f.sp. hordei, and that a single clone may cause mildew in areas hundred of miles apart. Applications of molecular markers to quantitative population genetics require detailed knowledge of the genetics of the marker system. The properties required of marker systems which are to be used in such research are discussed.
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© 1994 Springer Science+Business Media Dordrecht
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Brown, J.K.M. (1994). Molecular and Population Genetics of Barley Powdery Mildew. In: Daniels, M.J., Downie, J.A., Osbourn, A.E. (eds) Advances in Molecular Genetics of Plant-Microbe Interactions. Current Plant Science and Biotechnology in Agriculture, vol 21. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-0177-6_29
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DOI: https://doi.org/10.1007/978-94-011-0177-6_29
Publisher Name: Springer, Dordrecht
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