Analysis of Vitamin P Content and Inheritance Models in Eggplant

摘要

The eggplant(Solanum melongena L.)is rich in vitamin P(also known as rutin),which is beneficial for humans.In this study,the vitamin P contents of 53 eggplant lines were measured via UV spectrophotometry.The results showed that the vitamin P content differed significantly among the eggplant lines and the actual contents of vitamin P in fresh fruit pulp and fresh peel were 0.18–0.82mg·g^−1 and 0.42–2.32mg·g^−1,respectively.Furthermore,themixed major gene and polygene inheritance modelmethod was used for the inheritance analysis of the vitamin P content in F2 populations of three hybridization combinations.Inheritance analysis demonstrated that the vitamin P content of these eggplant lines was a quantitative trait.One or two major genes were the contributor,and the genetic effect was an additive-dominance effect.The high vitamin P content trait was regulated by the main gene and followed an additive effect.The heritability of the major genes controlling the high vitamin P content was low,while the heritability of the major gene that controls the low vitamin P content trait was high.These results provide a theoretical basis for the breeding of eggplants with high vitamin P content.