中国瓜菜2026，Vol.39Issue(6)：173-179,7.DOI:10.16861/j.cnki.zggc.2025.0723
大白菜黑斑病抗性遗传分析
Genetic analysis of black spot resistance in Chinese cabbage
摘要
Abstract
To elucidate the genetic mechanism of resistance to black spot disease in Chinese cabbage,this study conduct-ed resistance identification using an indoor detached leaf inoculation method on a six-generation(P1,P2,F1,F2,BC1F1,BC2F1)population constructed from the parental materials J406 and K23.The inheritance pattern of resistance was ana-lyzed using the major gene plus polygene joint genetic analysis method.The results demonstrated that the genetic model of black spot disease resistance in Chinese cabbage follows the MX2-ADI-AD model,which is controlled by two pairs of additive-dominance-epistasis major genes plus additive-dominance polygenes.Further analysis of the heritability in the three segregating generations(F2,BC1F1,BC2F1)revealed that the major gene heritability were 62.27％,76.93％and 79.22％,respectively,indicating that the inheritance of resistance is primarily controlled by major genes.The findings clar-ify the genetic pattern of resistance to black spot disease in Chinese cabbage and highlight the central role of major genes,providing an important theoretical basis and scientific guidance for the mining of favorable genes,marker-assisted selec-tion,and the breeding of new resistant varieties in Chinese cabbage black spot disease resistance breeding programs.关键词
大白菜/黑斑病/主基因+多基因/遗传分析Key words
Chinese cabbage/Black spot disease/Major gene+polygene/Genetic analysis分类
农业科技引用本文复制引用
苏悦华,范伟强,黄志银,刘晓晖,张斌,赵艳艳,张红,王超楠..大白菜黑斑病抗性遗传分析[J].中国瓜菜,2026,39(6):173-179,7.基金项目
国家重点研发计划子课题(2023YFD1201504-4) （2023YFD1201504-4）
天津市科技重大专项与工程全国重点实验室重大专项(25ZXZSSS00050) （25ZXZSSS00050）
天津市科技重大专项与工程种业创新重大专项(23ZXZVSN00030) （23ZXZVSN00030）
国家大宗蔬莱综合试验站(CARS-23-G-05) （CARS-23-G-05）
天津市蔬菜现代农业产业技术体系创新团队(ITTVRS2025003) （ITTVRS2025003）
