Genetic analysis of carpopodium length and fruit length in cucumber

In this study,segregation analysis for carpopodium length and fruit length in cucumber were conducted on a RIL population with 150 lines derived from greenhouse cucumber cultivars Z9×Dongnong129 under the Major Gene Plus Polygene Mixed Inheritance Model.The results showed that carpopodium length was controlled by two linked major genes plus additive polygene(E-2-6 model),with the major gene heritability of 56.27%,and polygene heritability of 17.08%;fruit length was con-trolled by two major genes plus additive polygene(E-1-8 model),with the major gene heritability of 43.75%,and polygene heritability of 10.18%,the major gene heredity rate were higher than the polygene heredity rate.Carpopodium length and fruit length in cucumber were determined mainly by major gene,and environment plays an important role in the inheritance of carpopodium length and fruit length.