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022 _a2076-0817 (Online)
024 8 _ahttps://doi.org/10.3390/pathogens14050490
040 _aMX-TxCIM
041 _aeng
100 1 _aMandal, R.
_936179
245 1 0 _aEvaluation of fusarium head blight resistance through a genome-wide association study in CIMMYT and South Asian wheat germplasm
260 _aSwitzerland :
_bMDPI,
_c2025.
500 _aPeer review
500 _aOpen Access
520 _aFusarium head blight (FHB) is an important disease throughout the world due to its strong association with yield reduction, quality deterioration, and mycotoxin contamination in wheat. The use of FHB-resistant genotypes in wheat production can significantly reduce damage. The current study screened a panel of bread wheat from CIMMYT and South Asian countries for FHB resistance to identify promising genotypes useful for wheat breeding and to map the associated genomic regions and linked molecular markers through a genome-wide association study (GWAS). Spray-inoculated field experiments were conducted at CIMMYT, Mexico, over three years, and a wide range of phenotypic variations was observed. Four lines, CIM-39, CIM-29, CIM-9, and CIM-3, exhibited consistent resistance across experiments, with FHB indices ranging from 6.5 to 8.1. Genotyping was conducted using the Illumina Infinium 15 K Bead Chip, and 11,184 high-quality SNP markers were obtained and used for GWAS. Nineteen significant marker-trait associations (MTAs) were detected, among which MTAs at Ra_c58315_265 on 1A and Tdurum_contig102328_129 and Ku_c20136_198 on 7B showed reproducible results, with phenotypic effects on FHB resistance of 6.05%, 3.54%, and 3.92%, respectively. Several genes associated with disease resistance were found near the significant SNPs. The identified resistant genotypes and markers may be useful in future marker-assisted breeding in wheat.
546 _aText in English
597 _bAccelerated Breeding
_bPlant Health
_dIndian Council of Agricultural Research (ICAR)
_dUnited States Agency for International Development (USAID)
_dCGIAR Trust Fund
_uhttps://hdl.handle.net/10568/175606
_fBreeding for Tomorrow
650 7 _aFusarium
_2AGROVOC
_92705
650 7 _aGenome-wide association studies
_2AGROVOC
_931443
650 7 _aWheat
_2AGROVOC
_91310
650 7 _aSingle nucleotide polymorphisms
_2AGROVOC
_910805
651 7 _aSouth Asia
_2AGROVOC
_91956
700 1 _aXinyao He
_gGlobal Wheat Program
_8INT3297
_9913
700 1 _aSingh, G.P.
_918282
700 1 _aKabir, M.R.
_915565
700 1 _aJoshi, A.K.
_gGlobal Wheat Program
_gFormerly Borlaug Institute for South Asia
_8INT2917
_9873
700 1 _aPawan Kumar Singh
_gGlobal Wheat Program
_8INT2868
_9868
773 0 _tPathogens
_gv. 14, no. 5, art. 490
_dSwitzerland : MDPI, 2025.
_x2076-0817
856 4 _yOpen Access through DSpace
_uhttps://hdl.handle.net/10883/35755
942 _cJA
_n0
_2ddc
999 _c68936
_d68928