Association of Storage Protein Patterns and Leaf Rust Resistance Derived From Aegilops umbellulata Zhuk. in the Wheat

Abstract

Hexaploid wheat lines (Triticum aestivum L.) obtained with the participation of Aegilops umbellulata as a donor of genes for resistance to brown leaf rust were investigated. The wheat lines were phytopathologically differentiated as resistant and susceptible to the disease mentioned. Protein components and subunits of three groups of storage proteins were analyzed in search of biochemical markers for resistance. The banding patterns were obtained by vertical block polyacrylamide gel electrophoresis. In the gliadin and glutenin patterns were established differences which indicate that rearrangement between homoeologous loci on 1AS+1DS chromosomes of wheat and the 1U chromosome of Ae.umbellulata had occured in the resistant line R 12. These alterations in the pattern of R 12 wheat line compared to the susceptible S 15 line could be examined as biochemical markers of 1U chromosome from Ae.umbellulata.