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Egorova T.V., Skorik V.V., Ternovskaya T.K.
Revealing Intervarietal Genetic Heterogeneity in Oat According to the Results of F1 Diallel Analysis
Cytology and Genetics 2002, v 36, number 4, 8-16
Genetic analysis of seven oat varieties for eight traits which are the yield components was performed when studying the varieties and the F1 hybrids from their diallel crosses. Involvement of epistatic genes in genetic control of all the traits excluding the panicle density was established. By analysing the diallel tables with exluded data from the varieties with epistatic genes, it was revealed that hyperdominance is inherent to genetic control of the majority of traits studied. The dominant gene action exceeds the additive gene action. The genes “u” increasing the phenotypic displaying of the trait are always dominant and their frequency in the variety set under consideration is higher than the frequency of the genes “v” for all traits studied.
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