Application of a genome-wide association study to identify markers associated with valuable agronomic traits in oats
https://doi.org/10.30901/2227-8834-2026-1-o3
Abstract
Successful solution of plant breeding problems associated with higher crop productivity and improved quality indicators of grain is impossible without the availability of appropriate genotyped source material. Oat is a versatile cereal crop. Oat grain has high nutritional value, contains essential unsaturated fatty acids, essential minerals, globular proteins, and β-glucans; it is characterized by the presence of a diversity of chemical compounds with antioxidant properties. Recently, oats have been utilized quite widely for food and dietary purposes, to expand the range of functional food products. Products obtained from oats have been recognized as means of preventing and treating certain chronic diseases. Of great importance in this context is the identification and development of sources and donors of valuable agronomic traits and a thorough study of their components. The genome-wide association study (GWAS) is a popular genomic approach that identifies genomic regions associated with a phenotype and, thus, aims to discover mutations in the genes underlying the phenotype. Information about the genome of a studied object is required for this statistical method, as well as phenotyping under field conditions, usually over a period of three years. A discussion is presented on the use of GWAS in the analysis of crop genetic diversity. The results of using this technique for identification of main agronomic and biochemical traits are shown. The details of applying this analysis for oats, as well as for the identification of genes controlling the synthesis of β-glucans in oat grain, are considered.
Supporting agencies: The study was supported by the Russian Science Foundation, Grant No. 23-76-00005, https://rscf.ru/project/23-76-00005/.
About the Authors
N. A. Shvachko
N.I. Vavilov All-Russian Institute of Plant Genetic Resources
Russian Federation
Russian Federation
Nataliya A. Shvachko, Cand. Sci. (Biology), Leading Researcher, VIR
42, 44 Bolshaya Morskaya Street, St. Petersburg 190000, Russia
T. V. Semilet
N.I. Vavilov All-Russian Institute of Plant Genetic Resources
Russian Federation
Russian Federation
Tatyana V. Semilet, Associate Researcher, VIR
42, 44 Bolshaya Morskaya Street, St. Petersburg 190000, Russia
O. N. Kovaleva
N.I. Vavilov All-Russian Institute of Plant Genetic Resources
Russian Federation
Russian Federation
Olga N. Kovaleva, Cand. Sci. (Biology), Leading Researcher, VIR
42, 44 Bolshaya Morskaya Street, St. Petersburg 190000, Russia
K. A. Lukina
N.I. Vavilov All-Russian Institute of Plant Genetic Resources
Russian Federation
Russian Federation
Kseniia A. Lukina, Associate Researcher, VIR
42, 44 Bolshaya Morskaya Street, St. Petersburg 190000, Russia
I. G. Loskutov
N.I. Vavilov All-Russian Institute of Plant Genetic Resources
Russian Federation
Russian Federation
Igor G. Loskutov, Dr. Sci. (Biology), Associate Professor, Chief Researcher, Head of a Department, VIR
42, 44 Bolshaya Morskaya Street, St. Petersburg 190000, Russia
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Shvachko N.A., Semilet T.V., Kovaleva O.N., Lukina K.A., Loskutov I.G. Application of a genome-wide association study to identify markers associated with valuable agronomic traits in oats. Proceedings on applied botany, genetics and breeding. 2026;187(1):190-203. (In Russ.) https://doi.org/10.30901/2227-8834-2026-1-o3
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