Variability of Genetic Diversity of Spring Barley by Hordein-Coding Locus over a 40-Year Period of Scientific Breeding in Krasnoyarsk Krai

Abstract

The article discusses and summarizes the results of studies of polymorphism of hordeins (HRD) of spring barley by electrophoresis at the Krasnoyarsk Research Institute of Agriculture for the period from 1988 to 2021. The analysis of the dynamics of the genetic diversity of barley varieties from the ecological and breeding nurseries of the Krasnoyarsk Research Institute of Agriculture released and approved for use in Krasnoyarsk krai showed a significant narrowing of the frequency of occurrence and the loss of a number of alleles characteristic of the conditions of Yenisei Siberia and the appearance of rare variants for the Siberian region. On the basis of long-term observations of the composition of hordeins of breeding samples (promising and rejection) created in different areas of breeding, a number of alleles were found to be associated with economically valuable traits.