Degree of phenotypic dominance and heritability of the plant height in wheat hybrids with different alleles of Rht genes
| Autor: | S. V. Chebotar, A. I. Goncharova, G. O. Chebotar, I. I. Motsnyy |
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| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
0301 basic medicine Genetics Heterosis Overdominance Cell Biology Heritability Biology 01 natural sciences Agricultural and Biological Sciences (miscellaneous) Loss of heterozygosity 03 medical and health sciences 030104 developmental biology Genotype Allele 010606 plant biology & botany Hybrid Dominance (genetics) |
| Zdroj: | Cytology and Genetics. 51:18-25 |
| ISSN: | 1934-9440 0095-4527 |
| DOI: | 10.3103/s0095452717010108 |
| Popis: | The degree of dominance and the heritability coefficient have been investigated as the markers of allelic interactions of the loci Rht8 and Rht-B1. The interaction is characterized by partial or total dominance or even by overdominance of greater plant height and by low or medium heritability. The alleles that exert a weaker direct negative effect or no such effect predominate over the alleles that predispose to a more pronounced reduction of plant height. The impact of weather conditions on the switch of dominance is discussed. The Kooperatorka line has an additional allele (or alleles) that predisposes to greater plant height; the mode of inheritance of these alleles is partially recessive. An unidentified semidominant gene (or genes) that determines small plant height is present in the genotype of the Odes’ka 3 line. The presence of heterosis related to heterozygosity for certain genes not critically relevant for the present study makes the assessment of the allelic interaction characteristics under investigation more complicated. |
| Databáze: | OpenAIRE |
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