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Alleles on the two dwarfing loci on 4B and 4D are main drivers of FHB ‐related traits in the Canadian winter wheat population “Vienna” × “25R47”
Author(s) -
TamburicIlincic Ljiljana,
Barcellos Rosa Silvia
Publication year - 2017
Publication title -
plant breeding
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.583
H-Index - 71
eISSN - 1439-0523
pISSN - 0179-9541
DOI - 10.1111/pbr.12527
Subject(s) - biology , stem rust , quantitative trait locus , doubled haploidy , dwarfing , population , rust (programming language) , puccinia , plant disease resistance , agronomy , allele , fusarium , genetics , resistance (ecology) , horticulture , gene , demography , mildew , sociology , computer science , programming language
Fusarium head blight ( FHB ), leaf rust and stem rust are among the most destructive wheat diseases. High‐yielding, native disease resistance sources are available in North America. The objective of this study was to map loci associated with FHB traits, leaf rust, stem rust and plant height in a “Vienna”/”25R47” population. DArT markers were used to generate a genetic map, and quantitative trait loci ( QTL ) analysis was performed by evaluating 113 doubled haploid lines across three environments in Ontario, Canada. FHB resistance QTL were identified on chromosomes 4D, 4B, 2D and 7A, while a QTL for leaf and stem rust resistance was identified on chromosome 1B. The dwarfing alleles of both Rht‐B1 and Rht‐D1 were associated with increased FHB index and DON content.