INHERITANCE OF DIFFERENCES IN GLIADIN ELECTROPHOREGRAMS IN THE PROGENY OF NEEPAWA AND PITIC 62 WHEATS

Patterns of gliadin proteins extracted from parents and inbred lines from the second backcross of hexaploid wheat (Triticum aestivum L. em Thell) cv. Pitic 62 to cv. Neepawa were compared by polyacrylamide gel electrophoresis in aluminum lactate–lactic acid buffer (pH 3.1). Of the 26 band locations identified, 19 showed differences between the two cultivars. Nine bands appeared to be controlled by single genes, while the segregation ratios for the other 10 bands suggested that each was controlled by two genes. A group of five bands appeared to be inherited as a unit, as did a second group of three bands. There was evidence of linkage between the genes controlling several bands. Results are discussed in relation to cultivar identification in wheat.