Investigation concerning genetical control of alkaloid content in white lupine (Lupinus albus L.)
1994
Vladutu, C. | Botez, C. (Universitatea de Stiinte Agricole, Cluj-Napoca (Romania)) | Fritea, M. (Statiunea de Cercetari Agricole, Livada (Romania))
The investigations into genetic control of alkaloids content in white lupine were based on analysis of genetic variance determined for this character within a half-diallel hybridization system among six varieties of white lupine out of which three were bitter and three sweet. It was inferred that the alkaloid content in white lupine is a quantitative character, the additive effects of polygenes being influenced in their expression both by the allelic and nonallelic genetic interactions as well as by the environmental ones. At the allelic relationship level the dominant alleles could determine an increase of alkaloid content, the dominant effect being significant. In spite of the fact that some hybrids obtained among sweet varieties were bitter, the significant additive effects of the genes on alkaloid content and the high value of heritability could give us the possibility of obtaining negative forms by selection into hybrid populations accomplished by hybridization of sweet varieties. In the same paper the plotting of genetic variance proved to be an efficient method of interpretation for genetic structure of parental forms. With this frame a relative higher heterozygosity of Nyirsegi edes variety was reported, whose sweetness was proved to be instable in desendence.
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