Multiple Endopeptidasen als biochemische Marker für die Resistenz von Winterweizen gegenüberPseudocercosporellaherpotrichoides (Fron) Deighton

摘要

AbstractMultiple endopeptidases as biochemical marker for resistance of winter wheat toPseudocercosporella herpotnchoides(Fron) Deighton. Electrophoretic patterns of primary leaf endopeptidases in breeding material derived from crosses between different winter wheat genotypes and amphidiploids (Triticum turgidum×Aegilops ventricosa) were compared with those of cultivars susceptible toPseudocercosporella herpotrichoides.The results indicate that the multiple endopeptidase EP‐1 coded by Wheat chromosome 7 D is absent in the international known lines ‘VPM 1’ and ‘Roazon’ and in all 24 winter wheat selections with increased resistance toP. herpotrichoides.A close relationship between the absence of EP‐1 and the introduction ofAegilops ventricosaresistance is assumed. The use of this biochemical marker in wheat breeding