茄子果实维生素P和维生素C含量的主基因+多基因遗传分析OA

Eggplant is rich in vitamins and is one of the essential nutrients for maintaining human health.In this experiment,an F2 population was constructed using green eggplant as the female parent and white-green eggplant as the male parent.The contents of vitamin P and vitamin C were determined in the population.Genetic analysis was performed using the mixed major-gene plus polygene inheritance model for quantitative traits in plants.The results showed that the optimal inheritance model for vitamin P content is 1MG-NCD,controlled by a single pair of major genes with complete negative dominance,primarily additive effects,and the major gene heritability in the F2 generation is 96.571 4％.The optimal inheritance model for vitamin C content is 2MG-A,controlled by two pairs of genes with additive effects,one pair exerts a negative additive effect on vitamin C content(da=-0.914 9),while the other pair exerts a positive additive effect(db=0.523 4).No dominance effect was observed,and the major gene heritability in the F2 generation is 99.096％.In breeding practice,selecting parents with high vitamin P and vitamin C contents can be used to develop eggplant varieties with elevated levels of these vitamins.