Study of genetic determination of 20 gliadin bands

Abstract

Study of the genetic determination of the gliadins of two F2 progenies from bread wheat has enabled (1) confirmation of the co-dominant heredity of the presence of these bands in the F1, and (2) determination of the transmission of the presence/absence character for 20 bands. 10 bands are monogenically controlled; 10 others are coded by two pairs of alleles. Among the latter 2 bands split into two proteins in 2 dimensional electrophoresis. Analysis of the segregations, not taking into consideration the presence/absence character but only the concentrations of certain bands, led to the formulation of the hypothesis of regulator genes controlling the expression of structural genes.