To use of marker selection algorithms for improving winter wheat varieties

On the basis of SNP-typing of collection samples of winter wheat, a study of their genetic diversity was carried out on molecular markers of low-growth genes (Rht), sensitivity to photoperiodism (Ppd), as well as genetic systems that affect the quality of grain products. It is shown that this analysis is important for expanding the information content of breeding programs when improving varieties. The conjugation of individual marker genes with yield, as well as the formation of protein and gluten in the grain, both with their monogenic presence and the combination of at least two marker genes, was studied. On the basis of genome-wide SNP-typing, at least 4 biotypes of varieties that are individual in the implementation of economically valuable traits at the phenotypic level have been identified. It is noted that the varieties of the "Orel biotype" are distinguished by a high potential of productivity, and the varieties of the "Nemchinovsky biotype" - by a high protein content. Based on the data obtained, a strategy for improving the selection of these biotypes has been determined.