| Institution: | 1. Department of Pathology and Clinical Pathology, Faculty of Veterinary Medicine, Assiut University, Assiut 71526, Egypt;2. Deanship of Scientific Research, Jazan University, Jazan, Saudi Arabia;3. Department of MLT, Faculty of Applied Medical Science, Jazan University, Jazan, Saudi Arabia;1. Faculty of Agriculture and Food Science, Pavillon de l’Envirotron, Laval University, Quebec, QC, Canada;2. Department of Agronomy, Faculty of Agriculture, Zagazig University, Zagazig, Egypt;3. Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia;4. General Administrative of Medical Affairs, Zagazig University, Zagazig, Egypt;5. Pharmaceutical Sciences Division, Medicinal and Aromatic Plants Dept., National Research Centre, Cair, Egypt;6. Agricultural Biochemistry Department, Faculty of Agriculture, Zagazig University, Zagazig, Egypt;1. Department of Microbiology, Nutrition and Dietetics, Czech University of Life Sciences Prague, Kamýcká 129, 165 00, Praha 6, Suchdol, Czech Republic;2. SELTON, Sib?ina - Stupice 24, 250 84, Czech Republic;3. Department of Quality of Agricultural Products, Czech University of Life Sciences Prague, Kamýcká 129, 165 00, Praha 6, Suchdol, Czech Republic;1. Food Science and Nutrition Program, 1125 Colonel By Drive, K1S 5B6, Ottawa, ON, Canada;2. Department of Food Science Science, Federal University of Lavras (UFLA), Lavras, MG, 37200-000, Brazil;3. Institute of Biochemistry Carleton University, 1125 Colonel By Drive, K1S 5B6, Ottawa, ON, Canada |
| Abstract: | Avenanthramides (AVNs), a group of phytochemicals which are unique to oats, provide health benefits through antioxidant activity and other bioactivities. In this study, we explored genotype-by-environment interactions and heritability for AVN concentrations in oats. Avenanthramide concentrations were quantified for 100 breeding lines and cultivars at three locations over two years. While year and environment had an influence on AVN concentrations, with the influence of year being more apparent than that of environment within a year, genotype had the largest impact on AVN concentration. All three major AVNs were found to be heritable. Two methods of calculating heritability on a line mean basis were used. The statistical method yielded heritability estimates of 0.34, 0.39, and 0.41 for AVN 2c, AVN 2p, and AVN 2f, respectively. By comparison the traditional plant breeding method yielded heritability estimates of 0.82, 0.88, and 0.89 for AVN 2c, AVN 2p, and AVN 2f, respectively, indicating that expected gains will be dependent on the scale of the breeding program, the number of target environments, and climate variability. The estimated heritabilities and the 11-fold range in AVN concentrations in the 100 genotypes studied provided evidence that variability for AVN concentration should allow breeding progress for higher AVN concentration. |
