Genetic analysis of resistance of cucumber to Fusarium wilt
In order to study the genetic law of cucumber resistance to Fusarium wilt,in this study,two four-generation hybrid combinations were obtained by Han203 cross with BLF-2-1A,NS cross with NR,respectively.The inheritance law of cucumber wilt was analyzed by using a mixture of principal genes and multi-gene model.The results showed that Han203×BLF-2-1A conformed to the E-1(MX2-ADI-AD)model in autumn 2018 and the E-0(MX2-ADI-ADI)model in spring 2019;NS×NR conformed to the E-1(MX2-ADI-AD)model in spring 2023 and the E-0(MX2-ADI-ADI)model in 2023 autumn.In these four models,the main gene genetic efficiency was 87.98％,77.30％,73.96％and 72.33％,the polygenic genetic efficiency was 0,2.7％,0 and 0,and the environmental variance as a percentage of phenotypic vari-ance was 12.22％,22.70％,26.40％and 27.67％,respectively.This study provides a reference basis for the selection and breeding of cucumber wilt resistance materials and the mining of cucumber wilt resistance related genes.
万方数据
维普
