作物学报2026，Vol.52Issue(2)：363-375,13.DOI:10.3724/SP.J.1006.2026.51075
河南省200份小麦品种苗期茎基腐病抗性鉴定与全基因组关联分析
Identification and genome-wide association analysis of seedling-stage Fusarium crown rot resistance in 200 wheat cultivars from Henan province,China
摘要
Abstract
Fusarium crown rot(FCR)is a globally prevalent soil-borne fungal disease of wheat.In recent years,its incidence has steadily increased in the middle-lower Yangtze River and Huang-Huai wheat-growing regions of China.However,wheat cultivars with strong resistance remain scarce.As a result,the identification of resistant germplasm and the discovery of resistance genes have become key priorities in resistance breeding.In this study,the dominant FCR pathogen Fusarium pseudograminearum strain WZ-8A,isolated from the Huang-Huai wheat region,was used to evaluate seedling-stage resistance in 133 landrace cultivars and 67 modern cultivars from Henan province.Phenotypic data were integrated with wheat 660K SNP genotyping data to perform a genome-wide association study(GWAS).The results revealed that only eight cultivars—Tutoumai(Qixian),Zaoyangmai,Bai-quan 41,Kaimai 18,Zhoumai 24,04 Zhong 36,Yumai 35,and Zhongyu 3—exhibited moderate resistance.GWAS identified 30 significant loci,with two SNPs(AX-111055517 and AX-110584552)consistently detected across multiple models and environ-ments.Functional annotation and expression analysis of candidate regions suggested that TraesCS4B02G048500 may be a key resistance gene.This study identified eight moderately resistant wheat accessions at the seedling stage,and the significant loci and putative genes discovered provide valuable resources,insights,and a theoretical foundation for future FCR resistance breeding and related research.关键词
小麦/茎基腐病/苗期抗性/全基因组关联分析/候选基因Key words
wheat/Fusarium crown rot/seedling resistance/genome-wide association study/candidate gene引用本文复制引用
鲁雅妮,丁超杰,张煜,杜习军,齐学礼,胡琳,许为钢..河南省200份小麦品种苗期茎基腐病抗性鉴定与全基因组关联分析[J].作物学报,2026,52(2):363-375,13.基金项目
本研究由国家重点研发计划项目(2023YFD1200401),财政部和农业农村部国家现代农业产业技术体系建设专项(CARS-03-7),国家重点研发计划项目(2023YFF1001502)和神农种业实验室"一流课题"项目(SN01-2022-01)资助.This study was supported by the National Key Research and Development Program of China(2023YFD1200401),the China Agriculture Research System of MOF and MARA(CARS-03-7),the National Key Research and Development Program of China(2023YFF1001502),and the"First-class Project"of Shennong Laboratory(SN01-2022-01). （2023YFD1200401）
