GrainGenes Reference Report: TAG-126-2825
Reference
TAG-126-2825
Title
Genetic mapping of QTL for resistance to Fusarium head blight spread (type 2 resistance) in a Triticum dicoccoides x Triticum durum backcross-derived population.
Journal
Theoretical and Applied Genetics
Year
2013
Volume
126
Pages
2825-2834
Author
Buerstmayr M Alimari A Steiner B Buerstmayr H
Abstract
Improvement of resistance to Fusarium head blight (FHB) is a continuous challenge for durum wheat breeders, particularly due to the limited genetic variation within this crop species. We accordingly generated a backcross-derived mapping population using the type 2 FHB resistant Triticum dicoccoides line Mt. Gerizim #36 as donor and the modern Austrian T. durum cultivar Helidur as recipient; 103 BC1F6:7 lines were phenotyped for type 2 FHB resistance using single-spikelet inoculations and genotyped with 421 DNA markers (SSR and AFLP). QTL mapping revealed two highly significant QTL, mapping to chromosomes 3A and 6B, respectively. For both QTL the T. dicoccoides allele improved type 2 FHB resistance. Recombinant lines with both favorable alleles fixed conferred high resistance to FHB similar to that observed in the T. dicoccoides parent. The results appear directly applicable for durum wheat resistance breeding.
External Databases
https://doi.org/10.1007/s00122-013-2174-x
QTL
QTL0983_3A-Buerstmayr_et_al._2013
GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture.
GrainGenes Reference Report: TAG-126-2825
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GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture. | |||