Abstract
Development of soybean [Glycine max (L.) Merr.] varieties with altered palmitic acid content increase the utility of the oil for different edible purposes. The palmitic acid content in the seed oil of common soybean varieties is about 11.0 %. Sovbean mutants with reduced and elevated palmitic acid have been developed. The objective of this study was to determine the relationships between the genetic systems controlling palmitic acid content in these mutants. Reciprocal crosses were made between each mutant and its original variety, Bay and between the two mutants. No maternall and cytoplasmic effects were found in these crosses. There was no dominance for palmitic acid content in J3×Bay and J3×J10 crosses, while in J10×Bay cross, a partial dominant effect was observed. Analysis of F2 seeds from F1 plants in both of J3×Bay and J10×Bay crosses showed three distinct peaks for palmitic acid content which satisfactorily fit a 1 : 2 : 1 ratio.
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