QTL Mapping of Fusarium Head Blight and Correlated Agromorphological Traits in an Elite Barley Cultivar Rasmusson

Frontiers in Plant Science
Yadong HuangGary J Muehlbauer

Abstract

Fusarium head blight (FHB) is an important fungal disease affecting the yield and quality of barley and other small grains. Developing and deploying resistant barley cultivars is an essential component of an integrated strategy for reducing the adverse effects of FHB. Genetic mapping studies have revealed that resistance to FHB and the accumulation of pathogen-produced mycotoxins are controlled by many quantitative trait loci (QTL) with minor effects and are highly influenced by plant morphological traits and environmental conditions. Some prior studies aimed at mapping FHB resistance have used populations derived from crossing a Swiss landrace Chevron with elite breeding lines/cultivars. Both Chevron and Peatland, a sib-line of Chevron, were used as founders in the University of Minnesota barley breeding program. To understand the native resistance that might be present in the Minnesota breeding materials, a cross of an elite cultivar with a susceptible unadapted genotype is required. Here, a mapping population of 93 recombinant inbred lines (RILs) was developed from a cross between a moderately susceptible elite cultivar 'Rasmusson' and a highly susceptible Japanese landrace PI 383933. This population was evaluated for FHB se...Continue Reading

References

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Citations

Feb 28, 2019·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Hongni YaoZhengqiang Ma
Nov 7, 2019·Toxins·Nora A ForoudHermann Bürstmayr
Aug 30, 2021·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Yadong HuangGary J Muehlbauer
Dec 7, 2021·Genome Génome / Conseil National De Recherches Canada·Amina AbedFrançois Belzile

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Methods Mentioned

BETA
Genotyping
chip

Software Mentioned

R corrplot
MapChart
R lme4 package
Quest
iSelect
Chevron
Stander
Windows
QTL Cartographer
R

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