A novel quantitative trait locus for Fusarium head blight resistance in chromosome 7A of wheat

2011 ◽  
Vol 122 (6) ◽  
pp. 1189-1198 ◽  
Author(s):  
D. V. Jayatilake ◽  
G. H. Bai ◽  
Y. H. Dong
Keyword(s):  
Quantitative Trait Locus ◽  
Fusarium Head Blight ◽  
Quantitative Trait ◽  
Fusarium Head Blight Resistance ◽  
Blight Resistance ◽  
Head Blight ◽  
Trait Locus

scholarly journals The Ability to Detoxify the Mycotoxin Deoxynivalenol Colocalizes With a Major Quantitative Trait Locus for Fusarium Head Blight Resistance in Wheat

2005 ◽  
Vol 18 (12) ◽  
pp. 1318-1324 ◽  
Author(s):  
Marc Lemmens ◽  
Uwe Scholz ◽  
Franz Berthiller ◽  
Chiara Dall'Asta ◽  
Andrea Koutnik ◽  
...  
Keyword(s):  
Quantitative Trait Locus ◽  
Fusarium Head Blight ◽  
Quantitative Trait ◽  
Fusarium Head Blight Resistance ◽  
Close Relation ◽  
Major Effect ◽  
Head Blight ◽  
Fhb Resistance ◽  
Trait Locus ◽  
Wheat Lines

We investigated the hypothesis that resistance to deoxynivalenol (DON) is a major resistance factor in the Fusarium head blight (FHB) resistance complex of wheat. Ninety-six double haploid lines from a cross between ‘CM-82036’ and ‘Remus’ were examined. The lines were tested for DON resistance after application of the toxin in the ear, and for resistances to initial infection and spread of FHB after artificial inoculation with Fusarium spp. Toxin application to flowering ears induced typical FHB symptoms. Quantitative trait locus (QTL) analyses detected one locus with a major effect on DON resistance (logarithm of odds = 53.1, R2 = 92.6). The DON resistance phenotype was closely associated with an important FHB resistance QTL, Qfhs.ndsu-3BS, which previously was identified as governing resistance to spread of symptoms in the ear. Resistance to the toxin was correlated with resistance to spread of FHB (r = 0.74, P < 0.001). In resistant wheat lines, the applied toxin was converted to DON-3-O-glucoside as the detoxification product. There was a close relation between the DON-3-glucoside/DON ratio and DON resistance in the toxintreated ears (R2 = 0.84). We conclude that resistance to DON is important in the FHB resistance complex and hypothesize that Qfhs.ndsu-3BS either encodes a DON-glucosyltransferase or regulates the expression of such an enzyme.

scholarly journals Identification of a Novel Fusarium Head Blight Resistance Quantitative Trait Locus on Chromosome 7A in Tetraploid Wheat

2007 ◽  
Vol 97 (5) ◽  
pp. 592-597 ◽  
Author(s):  
S. Kumar ◽  
R. W. Stack ◽  
T. L. Friesen ◽  
J. D. Faris
Keyword(s):  
Quantitative Trait Locus ◽  
Fusarium Head Blight ◽  
Quantitative Trait ◽  
Recombinant Inbred Lines ◽  
Tetraploid Wheat ◽  
Fusarium Head Blight Resistance ◽  
Resistance Quantitative Trait Locus ◽  
Head Blight ◽  
Fhb Resistance ◽  
Trait Locus

Fusarium head blight (FHB) caused by Fusarium graminearum is one of the most destructive diseases of durum (Triticum turgidum sp. durum) and common wheat (T. aestivum). Promising sources of FHB resistance have been identified among common (hexaploid) wheats, but the same is not true for durum (tetraploid) wheats. A previous study indicated that chromosome 7A from T. turgidum sp. dicoccoides accession PI478742 contributed significant levels of resistance to FHB. The objectives of this research were to develop a genetic linkage map of chromosome 7A in a population of 118 recombinant inbred lines derived from a cross between the durum cv. Langdon (LDN) and a disomic LDN-T. turgidum sp. dicoccoides PI478742 chromosome 7A substitution line [LDN-DIC 7A(742)], and identify a putative FHB resistance quantitative trait locus (QTL) on chromosome 7A derived from LDN-DIC 7A(742). The population was evaluated for type II FHB resistance in three greenhouse environments. Interval regression analysis indicated that a single QTL designated Qfhs.fcu-7AL explained 19% of the phenotypic variation and spanned an interval of 39.6 cM. Comparisons between the genetic map and a previously constructed physical map of chromosome 7A indicated that Qfhs.fcu-7AL is located in the proximal region of the long arm. This is only the second FHB QTL to be identified in a tetraploid source, and it may be useful to combine it with the QTL Qfhs.ndsu-3AS in order to develop durum wheat germ plasm and cultivars with higher levels of FHB resistance.

scholarly journals Use of non‐adapted quantitative trait loci for increasing Fusarium head blight resistance for breeding semi‐dwarf wheat

2019 ◽  
Vol 138 (2) ◽  
pp. 140-147 ◽  
Author(s):  
Thomas Miedaner ◽  
Cathérine P. Herter ◽  
Erhard Ebmeyer ◽  
Sonja Kollers ◽  
Viktor Korzun
Keyword(s):  
Quantitative Trait Loci ◽  
Fusarium Head Blight ◽  
Quantitative Trait ◽  
Fusarium Head Blight Resistance ◽  
Blight Resistance ◽  
Head Blight ◽  
Trait Loci ◽  
Dwarf Wheat

Quantitative Trait Loci for Fusarium Head Blight Resistance in U.S. Hard Winter Wheat Cultivar Heyne

Crop Science ◽  
2012 ◽  
Vol 52 (3) ◽  
pp. 1187-1194 ◽  
Author(s):  
Xianghui Zhang ◽  
Guihua Bai ◽  
Willium Bockus ◽  
Xiaojia Ji ◽  
Hongyu Pan
Keyword(s):  
Quantitative Trait Loci ◽  
Winter Wheat ◽  
Fusarium Head Blight ◽  
Quantitative Trait ◽  
Wheat Cultivar ◽  
Fusarium Head Blight Resistance ◽  
Blight Resistance ◽  
Head Blight ◽  
Winter Wheat Cultivar ◽  
Trait Loci

Mapping of Fusarium Head Blight Resistance Quantitative Trait Loci in Winter Wheat Cultivar NC-Neuse

Crop Science ◽  
2016 ◽  
Vol 56 (4) ◽  
pp. 1473-1483 ◽  
Author(s):  
Stine Petersen ◽  
Jeanette H. Lyerly ◽  
Peter V. Maloney ◽  
Gina Brown-Guedira ◽  
Christina Cowger ◽  
...  
Keyword(s):  
Quantitative Trait Loci ◽  
Winter Wheat ◽  
Fusarium Head Blight ◽  
Quantitative Trait ◽  
Wheat Cultivar ◽  
Fusarium Head Blight Resistance ◽  
Blight Resistance ◽  
Head Blight ◽  
Winter Wheat Cultivar ◽  
Trait Loci
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