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GrainGenes Reference Report: ASI-30-786

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Reference	ASI-30-786
Title	Analysis of QTL for Fusarium head blight resistance in wheat
Journal	Acta Agronomica Sinica
Year	2004
Volume	30
Pages	786-791
Author	Zhou M [ Show all 7 ]
Abstract	With the population of 104 F7-derived recombinant inbred (RI) lines from Wangshuibai (resistance to Fusarium head blight) and Alondra (Susceptible) as mapping population, the wheat genetic map consisting of 2 RAPDs, 109 SSRs and 105 AFLPs markers was constructed by JoinMap 3.0 software. Up to 24 of the 25 identified linkage groups were identified to the chromosome. The FHB resistance of RI lines was evaluated by natural infection and soil surface inoculation in Jianyang and Suzhou for two years. Resistance to FHB was inherited in a quantitative manner and controlled by few genes with major effects, but the expression of these resistance genes was strongly affected by environment. Some 10 QTLs, 8 derived from Wangshuibai and 2 from Alondra, associated with FHB resistance, were detected using MapQTL 4.0 software. They were located on the chromosomes 2A, 3B, 4A, 4D, 5A, 5B, 6A, 6B, 7A and explained 8.3-23.6% of the phenotypic variance for FHB resistance, respectively. The flanking markers of QTL may be used in the breeding for resistance to FHB by marker-assisted selection
Keyword	[ Hide all but 1 of 17 ] chromosome environment fungal diseases gene expression genetic marker inbred line infection linkage linkage groups phenotypic variation plant diseases plant pathogenic fungi plant pathogens quantitative trait quantitative trait loci recombination selection

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