2026-10-12T06:36:46Z https://www.scidb.cn/oai

10.57760/sciencedb.012eh 2026-09-28T17:00:43Z

2026-09-28 Distinct Genomic Architectures of Fusarium Head Blight Resistance Uncovered via Haplotype Characterization of High-confidence Genome-wide QTLs in Wheat doi:10.57760/sciencedb.012eh en This dataset was generated from a study of Fusarium head blight (FHB) resistance in 801 wheat accessions, aiming to characterize resistance haplotype variation and support resistance locus mining and parental selection in breeding. The accessions were phenotyped across two growing seasons (2023 and 2024) and two environments following inoculation with a highly virulent F. graminearum isolate, and genotyped with a 2K+ SNP liquid chip targeting 93 high-confidence meta-QTLs (hcMQTLs) for FHB resistance. Phenotypic and haplotype data were analyzed in R (BLUPs and DSI estimated with ASREML-R mixed models; haplotype types classified based on SNP allelic effects on DSI), and the results are organized into four Excel tables: Table S1, the classification and sources of the 801 accessions; Table S2, FHB resistance phenotypes (BLUPs of PSS and PABS and the derived DSI); Table S3, the haplotype matrix of all accessions across the 93 hcMQTL intervals (R/S/N); and Table S4, the frequency distribution of R and S haplotypes within each breeding subpanel. Accessions are consistently identified across all tables, allowing integrated analysis of germplasm origin, disease phenotype, and resistance haplotype composition, which will facilitate FHB resistance locus mining, haplotype interaction analysis, and parent selection for resistance breeding. Wheat; Fusarium head blight; Disease Severity Index; Haplotype analysis; Genomic architectures Tao Li EMBARGO https://opendatacommons.org/licenses/odbl/1-0/ dataset Science Data Bank