Productivity and grain nutritional value traits in wheat genotypes with different NAM-B1 gene allelic variations
| Autor: | O. A. Orlovskaya, S. I. Vakula, K. K. Yatsevich, L. V. Khotyleva, A. V. Kilchevsky |
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| Rok vydání: | 2022 |
| Zdroj: | Doklady of the National Academy of Sciences of Belarus. 66:517-524 |
| ISSN: | 2524-2431 1561-8323 |
| DOI: | 10.29235/1561-8323-2022-66-5-517-524 |
| Popis: | The identification of a functional NAM-B1 allele associated with a high content of grain protein and essential microelements in wheat relatives increased the distant hybridization significance for bread wheat nutritional value. The allelic polymorphism of the NAM-B1 gene in 22 wheat lines with a genetic material of T. dicoccoides, T. dicoccum, T. spelta, T. kiharаe and their parental forms and the effects of NAM-B1 gene allelic variations on the content of grain protein and essential microelements and productivity traits (vegetation period 2017–2021) were evaluated. The functional NAM-B1 allele was identified only in the samples of wheat relatives among the parental forms. All parental varieties and most of introgressive lines (77.3 %) had a non-functional allele. The genotypes with the functional NAM-B1 allele were characterized by a higher plant height and tillering, but by lower spike productivity compared to the non-functional allele genotypes. The presence of the functional NAM-B1 allele provided a high level of grain protein and zinc content and never decreased significantly a thousand-kernel weight across all studied environments. The functional NAM-B1 allele introgression could be a resource for improving the grain wheat nutritional value. |
| Databáze: | OpenAIRE |
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