Abstract

The compound nature of the Gpi-1 loci among polyploid, including Saratovskaya 29aneuploid stocks, and diploid Triticum and Aegilops species, the A, B and D genomedonors of common wheat, was studied. Diploid species produced single and multibandedelectrophoretic zymograms of glucose phosphate isomerase (GPI), namely three variantsin T. urartu the Au genome donor, and four in the goatgrass species of the Sitopsissection, the putative donors of the B and G genomes. Being monomorphic, Ae. tauschii, the D genome donor, produces the one-banded type. All the studied tetraploid speciescarrying the AB genome showed the identical three-banded type. Polymorphism wasobserved among the ABD genome hexaploid, i.e., 1R(1B) wheat rye chromosomesubstitution and 1RS - 1BL chromosome translocation cultivars or aneuploid stocks incommon wheat. The Gpi-1 bands were compared in diploid species and Saratovskaya29 nullisomic and ditelosomic stocks. It was concluded, that in common wheat, chromosome 1 A has 88 variant of Gpi-1 derived from T. urartu and chromosome1B derived from the Sitopsis section species contains the variant.