The genetic diversity of spring barley was studied according to adaptability indicators using protein marker systems, for which electrophoretic spectra of hordein were applied. Spring barley was bred at Federal Research Center "Nemchinovka". The study of the polymorphism of hordein-coding loci made it possible to identify 9 variants of component blocks controlled by alleles of the Hrd A locus; 10 variants controlled by alleles of the Hrd B locus, and 3 variants controlled by alleles of the Hrd F locus. According to the occurrence frequency the following alleles were dominant: Hrd А2 (44,2%), Hrd А23 (23,2%), Hrd В8 (29,3%), Hrd В25 (24,4%), Hrd F1 (35,0%), Hrd F2 (45,0%). Variants Hrd А4, Hrd В45, Hrd В164, Hrd F3 were found to be the most suitable for future adaptation potential’s increase. Based to the results of the analysis of electrophoretic profiles of Hrd ABF hordeins, the main tendency of selection of highly adaptive forms in the ecological conditions of the Central Non-Black Earth region, with variable occurrence stability in barley varieties, was stated for the variants of formulas 2.25.1, 23.19.1, 23.8.2, 2.8.2, 18.8.2, 2.45.2, 23.164.3, 2.45.3, 4.164.3. Ten groups with identical hordein profiles were marked. The most common registered hordein profile was demonstrated by a formula of hordein 2.25.1. Formula types matched with high level of crops’ yield (e. g. 2.45.2, 2.45.3, 23.164.3, 4.164.3) were discovered. Considering the adaptive pattern of hordein polymorphism, an acceleration of creating the new barley kinds by using electrophoresis hordein profiles is proved. Nadyozhniy spring barley kind was used as a source material, demonstrating the crops’ productivity index increase by 4,22–6,25%.

Eroshenko Lyubov M., Eroshenko Nikolay A., Dedushev Ivan A., Novosyolov Victor A., Kotov Oleg V.

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