Inheritance of resistance to Fusarium head blight in the wheat lines 'CJ 9306' and 'CJ 9403'

2006 ◽  
Vol 125 (5) ◽  
pp. 417-423 ◽  
Author(s):  
G.-L. Jiang ◽  
R. W. Ward
Keyword(s):  
Fusarium Head Blight ◽  
Inheritance Of Resistance ◽  
Head Blight ◽  
Wheat Lines

scholarly journals Automatic Evaluation of Wheat Resistance to Fusarium Head Blight Using Dual Mask-RCNN Deep Learning Frameworks in Computer Vision

2020 ◽  
Vol 13 (1) ◽  
pp. 26
Author(s):  
Wen-Hao Su ◽  
Jiajing Zhang ◽  
Ce Yang ◽  
Rae Page ◽  
Tamas Szinyei ◽  
...  
Keyword(s):  
Fusarium Head Blight ◽  
Ground Truth ◽  
Wheat Breeding ◽  
Head Blight ◽  
Detection Rates ◽  
Ground Truth Data ◽  
Resistant Cultivars ◽  
Feature Pyramid ◽  
Rater Error ◽  
Wheat Lines

In many regions of the world, wheat is vulnerable to severe yield and quality losses from the fungus disease of Fusarium head blight (FHB). The development of resistant cultivars is one means of ameliorating the devastating effects of this disease, but the breeding process requires the evaluation of hundreds of lines each year for reaction to the disease. These field evaluations are laborious, expensive, time-consuming, and are prone to rater error. A phenotyping cart that can quickly capture images of the spikes of wheat lines and their level of FHB infection would greatly benefit wheat breeding programs. In this study, mask region convolutional neural network (Mask-RCNN) allowed for reliable identification of the symptom location and the disease severity of wheat spikes. Within a wheat line planted in the field, color images of individual wheat spikes and their corresponding diseased areas were labeled and segmented into sub-images. Images with annotated spikes and sub-images of individual spikes with labeled diseased areas were used as ground truth data to train Mask-RCNN models for automatic image segmentation of wheat spikes and FHB diseased areas, respectively. The feature pyramid network (FPN) based on ResNet-101 network was used as the backbone of Mask-RCNN for constructing the feature pyramid and extracting features. After generating mask images of wheat spikes from full-size images, Mask-RCNN was performed to predict diseased areas on each individual spike. This protocol enabled the rapid recognition of wheat spikes and diseased areas with the detection rates of 77.76% and 98.81%, respectively. The prediction accuracy of 77.19% was achieved by calculating the ratio of the wheat FHB severity value of prediction over ground truth. This study demonstrates the feasibility of rapidly determining levels of FHB in wheat spikes, which will greatly facilitate the breeding of resistant cultivars.

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 Study of Resistance of Common Winter Wheat Lines to the Fusarium Head Blight (Fusarium Culmorum)

2018 ◽  
Vol 2 (3) ◽  
pp. 167-176
Author(s):  
Evgeniy Dimitrov ◽  
◽  
Zlatina Peycheva Uhr ◽  
Blagoy Andonov ◽  
Nikolaya Velcheva ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Fusarium Head Blight ◽  
Fusarium Culmorum ◽  
Head Blight ◽  
Wheat Lines

scholarly journals Type II Fusarium head blight susceptibility conferred by a region on wheat chromosome 4D

2020 ◽  
Vol 71 (16) ◽  
pp. 4703-4714 ◽  
Author(s):  
Benjamin Hales ◽  
Andrew Steed ◽  
Vincenzo Giovannelli ◽  
Christopher Burt ◽  
Marc Lemmens ◽  
...  
Keyword(s):  
Fusarium Head Blight ◽  
Chinese Spring ◽  
Wheat Chromosome ◽  
Addition Line ◽  
Head Blight ◽  
Wheat Varieties ◽  
Susceptibility Factor ◽  
Fhb Resistance ◽  
Grain Yield And Quality ◽  
Wheat Lines

Abstract Fusarium head blight (FHB) causes significant grain yield and quality reductions in wheat and barley. Most wheat varieties are incapable of preventing FHB spread through the rachis, but disease is typically limited to individually infected spikelets in barley. We point-inoculated wheat lines possessing barley chromosome introgressions to test whether FHB resistance could be observed in a wheat genetic background. The most striking differential was between 4H(4D) substitution and 4H addition lines. The 4H addition line was similarly susceptible to the wheat parent, but the 4H(4D) substitution line was highly resistant, which suggests that there is an FHB susceptibility factor on wheat chromosome 4D. Point inoculation of Chinese Spring 4D ditelosomic lines demonstrated that removing 4DS results in high FHB resistance. We genotyped four Chinese Spring 4DS terminal deletion lines to better characterize the deletions in each line. FHB phenotyping indicated that lines del4DS-2 and del4DS-4, containing smaller deletions, were susceptible and had retained the susceptibility factor. Lines del4DS-3 and del4DS-1 contain larger deletions and were both significantly more resistant, and hence had presumably lost the susceptibility factor. Combining the genotyping and phenotyping results allowed us to refine the susceptibility factor to a 31.7 Mbp interval on 4DS.

scholarly journals Comparison of components of Fusarium head blight in doubled haploid wheat lines

2004 ◽  
Vol 57 ◽  
pp. 108-115
Author(s):  
M.G. Cromey ◽  
S.C. Shorter ◽  
W.B. Griffin ◽  
C.A. Munro ◽  
D.R. Lauren
Keyword(s):  
New Zealand ◽  
Fusarium Head Blight ◽  
Doubled Haploid ◽  
Field Trial ◽  
Wheat Cultivars ◽  
Head Blight ◽  
Fusarium Spp ◽  
Low Levels ◽  
Wheat Lines ◽  
Moderately Resistant

Components of Fusarium head blight (FHB) caused by Fusarium spp were examined in one Chinese and seven New Zealand wheat cultivars and in 141 doubled haploid lines from a cross between a susceptible and a moderately resistant cultivar Components measured were incidence of FHB proportions of grains with visible FHB infection mycotoxins levels in grain and proportion of grains infected with Fusarium Lines were sown in a field trial that was inoculated with F graminearum and mist irrigated to enhance infection The Chinese cultivar Nanjing had the lowest level of FHB in ears and visibly infected grains and Fusarium infection in harvested grain Two New Zealand cultivars also had low levels of FHB components while two other cultivars had medium levels and three had high levels of infection There were moderate to good correlations between most components of FHB except that the proportions of visibly infected grains were poorly correlated with other components

Study of wheat lines resistance to Fusarium head blight

2005 ◽  
Vol 33 (2-3) ◽  
pp. 583-588 ◽  
Author(s):  
S. Tomasović ◽  
B. Palaveršić ◽  
I. Ikić
Keyword(s):  
Fusarium Head Blight ◽  
Head Blight ◽  
Wheat Lines

scholarly journals Characterisation of fusarium head blight resistance located on chromosome 4A of Triticum macha

2017 ◽  
Vol 38 (SI 2 - 6th Conf EFPP 2002) ◽  
pp. 580-582 ◽  
Author(s):  
A. Steed ◽  
E. Chandler ◽  
M. Thomsett ◽  
J. Carter ◽  
S. Faure ◽  
...  
Keyword(s):  
Fusarium Head Blight ◽  
Marker Assisted Selection ◽  
Single Gene ◽  
Fusarium Head Blight Resistance ◽  
Type I ◽  
Head Blight ◽  
Yield Trait ◽  
Fhb Resistance ◽  
Wheat Lines ◽  
Triticum Macha

Chromosome 4A of Triticum macha carries resistance to Fusarium head blight (FHB). Double haploid lines (DH) of T. macha 4A were used to determine the type of resistance and location of the gene(s). FHB resistance and yield trait data collected over two seasons following spray and point inoculation, indicate that the resistance is of type I and is probably conferred by a single gene. The resistance was mapped with microsatellite markers to a small area of the T. macha 4A chromosome flanked by markers gwm 610 and gwm 165. This could greatly facilitate future marker assisted selection work aimed at increasing resistance to FHB in other winter wheat lines.

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