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GrainGenes Trait Study Report: FHB, Field Resistance, Somers03

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Trait Study
FHB, Field Resistance, Somers03
Trait
Wheat reaction to head scab
Reference
ReferenceSomers DJ et al. (2003) Molecular mapping of novel genes controlling Fusarium head blight resistance and deoxynivalenol accumulation in spring wheat Genome 46:555-564.
Protocol
Plants at 50% anthesis were inoculated at 50,000 spores / ml, 60 ml / plot, and repeated 2 days later. Twenty one days after the initial inoculation a random sample of 20 - 30 spikes were collected for scoring.
Environment
Ottawa 1999
Ottawa 2000
Parental Description
MARINGAPercentage of infected florets = 10.9 for lines homozygous for MARINGA alleles (MM) at QFhs.crc-3B.2; Percentage of infected florets = 14.6 for lines homozygous for MARINGA alleles (MM) at QFhs.crc-4B
WUHAN #1Percentage of infected florets = 13.4 for lines homozygous for Wuhan alleles (WW) at QFhs.crc-3B.2; Percentage of infected florets = 10.2 for lines homozygous for Wuhan alleles (WW) at QFhs.crc-4B
Map Data
Wheat, WxM, FHB QTL
Population Size
91
Population Type
Doubled Haploid
QTL Analysis Method
ANOVA
Markers Tested
600
QTLs Found
2
Phenotypic R2
0.18p < 0.001
QTL
QFhs.crc-3B.2
QFhs.crc-4B