A storage-protein marker associated with the suppressor of Pm8 for powdery mildew resistance in wheat |
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| Authors: | S. X. Ren R. A. McIntosh P. J. Sharp T. T. The |
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| Affiliation: | (1) The University of Sydney, Plant Breeding Institute - Cobbitty, Private Bag 11, 2570 Camden, N.S.W, Australia;(2) Present address: Institute of Genetics, Chinese Academy of Sciences, 100101 Beijing, China |
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| Abstract: | A suppressor of resistance to powdery mildew conferred by Pm8 showed complete association with the presence of a storage-protein marker resolved by electrophoresis on SDS-PAGE gels. This marker was identified as the product of the gliadin allele Gli-A1a. The mildewresponse phenotypes of wheats possessing the 1BL.1RS translocation were completely predictable from electrophoretograms. The suppressor, designated SuPm8, was located on chromosome 1AS. It was specific in its suppression of Pm8, and did not affect the rye-derived resistance phenotypes of wheat lines with Pm17, also located in 1RS, or of lines with Pm7. |
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| Keywords: | Triticum aestivum Rye Secale cereale 1BL.1RS translocation 1AL.1RS translocation Gliadin, Electrophoresis Erysiphe graminis |
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