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Isoenzymes of Victoria Blight-Resistant Oat Lines Selected from Susceptible Cultivars. Harry Wheeler, Professor, Department of Plant Pathology, University of Kentucky, Lexington 40506; Anton Novacky(2), and H. H. Luke(3). (2)Research Associate, Department of Plant Pathology, University of Kentucky, Lexington 40506; and (3)Plant Pathologist, Crops Research Division, ARS, USDA, Department of Plant Pathology, University of Florida, Gainesville 32603, (2)Present address: Department of Plant Pathology, University of Missouri, Columbia 65201. Phytopathology 61:1147-1148. DOI: 10.1094/Phyto-61-1147.

Isoenzyme patterns of three Victoria blight-resistant oat lines selected from susceptible cultivars were indistinguishable from those of their putative parents. Disc gel electrophoresis appears useful, both as a preliminary test and as a supplement to other methods, for the determination of genetic origin in large-scale screening or breeding programs.