ALLELIC COMPOSITION OF GLIADIN-CODING LOCI AS A PORTRAIT IN SPRING SOFT WHEAT SELECTIONS OF RUSSIAN AND KAZAKH ORIGINS
Utebayev M.U. Dolinny Y.Y. Dashkevich S.M. Bome N.A.
October 2022Society for the Advancement of Breeding Researches in Asia and Oceania
Sabrao Journal of Breeding and Genetics
2022#54Issue 4755 - 766 pp.
The progressive study determined the gliadin profile and genetic diversity based on allelic variations of gliadin-coding loci in spring soft wheat (Triticum aestivum L.) selection from Russian and Kazakh origins. A total of 139 samples obtained from a spring soft wheat collection consisting of 62 from Russia and 77 from Kazakhstan were studied. As a result of electrophoretic analysis in Russian wheat, the share of monomorphic gliadin cultivars was 63% and polymorphic was 37%. However, in the Kazakh wheat collection, the share of polymorphic gliadin cultivars was 26%. The alleles were mostly found among the Russian cultivars, i.e., Gli-А1f (46.9%), Gli-В1е (43.7%), Gli-В1b (30.8%), Gli-D1а (61.0%), Gli-А2l (17.0%), Gli-А2m (16.9%), Gli-В2o (16.1%), and Gli-D2q (19.8%). In wheat genotypes collected from Kazakhstan, the following alleles dominated, i.e., Gli-А1f (47.4%), Gli-В1е (72.0%), Gli-D1а (61.7%), Gli-А2l (25.3%), Gli-А2s (16.2%), Gli-В2r (25.7%), and Gli-D2a (40.3%). The study compiled the so-called ideal electrophoretic spectrum of gliadin for several countries to visualize the portrait of wheat, created based on common blocks of gliadin identified by the researchers at different times. It assumed that cultivars close to the ideal spectrum in gliadin alleles should have a complex of economically valuable features. For example, the spectrum of Russian wheat consists of the blocks of components controlled by alleles, i.e., f, e, a, q, o, e. As for the Kazakh wheat, its ideal spectrum (f, e, a, l, r, a) coincides with the spectrum of Russian wheat at the loci Gli-1, as Russian cultivars were often taken as parental genotypes by the Kazakhstan breeders.
breeding , germplasm , Gli-locus , gliadin , polymorphism , spring soft wheat (Triticum aestivum L.)
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A.I. Barayev Research and Production Centre of Grain Farming, Shortandy-1, Kazakhstan
Institute of Biology, University of Tyumen, Tyumen, Russian Federation
A.I. Barayev Research and Production Centre of Grain Farming
Institute of Biology
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