scholarly journals Optical Sorter-Based Selection Effectively Identifies Soft Red Winter Wheat Breeding Lines With Fhb1 and Enhances FHB Resistance in Lines With and Without Fhb1

2020 ◽  
Vol 11 ◽  
Author(s):  
W. Jesse Carmack ◽  
Anthony Clark ◽  
Yanhong Dong ◽  
Gina Brown-Guedira ◽  
David Van Sanford
Keyword(s):  
Winter Wheat ◽  
Wheat Breeding ◽  
Breeding Lines ◽  
Soft Red Winter Wheat ◽  
Fhb Resistance ◽  
Red Winter Wheat

Quantitative trait loci analysis of four components of Fusarium head blight resistance in the soft red winter wheat cultivar Truman

2012 ◽  
Author(s):  
◽  
Md Sariful Islam
Keyword(s):  
Winter Wheat ◽  
Fusarium Head Blight ◽  
Head Blight ◽  
Phenotypic Data ◽  
University Of Missouri ◽  
Components Of Resistance ◽  
Soft Red Winter Wheat ◽  
Fhb Resistance ◽  
The University ◽  
Red Winter Wheat

[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Fusarium head blight (FHB) mainly caused by Fusarium graminearum Schwabe [telomorph: Gibberella zeae Schw. (Petch)] causes devastating losses in wheat globally. Host-plant resistance provides the best hope for reducing economic losses but sources of resistance are limited. "Truman" soft red winter wheat, developed and released by the University of Missouri has excellent broad-based FHB resistance. This research was conducted to identify QTL associated with five components of resistance in Truman. Two years (2 replications per year) of phenotypic data were collected on these components of resistance on a set of 167 F9 recombinant inbred lines developed from the cross Truman/MO 94-317. Genetic linkage maps were constructed using 160 single sequence repeat and 530 diversity array technology polymorphic markers. Across years, QTL for type II resistance were identified on chromosomes 1BSc, 2BL, 2DS and 3BSc; for disease incidence on 2ASc, 2DS, and 3DS; for disease severity on 2DS, and 3BSc; for Fusarium damage kernels (FDK) on 2ASc, 2DS, and 3BLc; and for low DON on 2ASc, 2DS, and 3BLc. Additional QTL for FDK were identified on 1BLc, 2ASc, and 3BLc; and for DON on 2ASc, 2DS, and 6ALc were identified from phenotypic data collected in Kentucky. The effects of identified QTL ranged from 5.0 to 30.7 % of the total phenotypic variation. Several of these QTL appear to be potentially novel and therefore should enhance FHB resistance in programs attempting to pyramid unique FHB resistance genes through marker-assisted-selection.

scholarly journals Physiologic Specialization of Puccinia triticina on Wheat in the United States in 2008

Plant Disease ◽  
2010 ◽  
Vol 94 (6) ◽  
pp. 775-780 ◽  
Author(s):  
J. A. Kolmer ◽  
D. L. Long ◽  
M. E. Hughes
Keyword(s):  
United States ◽  
Winter Wheat ◽  
Leaf Rust ◽  
Great Plains ◽  
Puccinia Triticina ◽  
The United States ◽  
Wheat Breeding ◽  
Eastern United States ◽  
Soft Red Winter Wheat ◽  
Red Winter Wheat

Collections of Puccinia triticina were obtained from rust-infected wheat (Triticum aestivum) leaves provided by cooperators throughout the United States and from surveys of wheat fields and wheat breeding plots by USDA-ARS personnel in the Great Plains, Ohio River Valley, Southeast, and Washington State in order to determine the virulence of the wheat leaf rust population in 2008. Single uredinial isolates (730 in total) were derived from the collections and tested for virulence phenotype on lines of Thatcher wheat that are near-isogenic for leaf rust resistance genes Lr1, Lr2a, Lr2c, Lr3, Lr9, Lr16, Lr24, Lr26, Lr3ka, Lr11, Lr17, Lr30, LrB, Lr10, Lr14a, Lr18, Lr21, Lr28, and a winter wheat line with Lr41. Forty-eight virulence phenotypes were described. Virulence phenotypes TDBGG, TCRKG, and MLDSD were the three most common phenotypes. TDBGG is virulent to Lr24 and was found in both the soft red winter wheat and hard red winter wheat regions. Phenotype TCRKG is virulent to Lr11, Lr18, and Lr26 and is found mostly in the soft red winter wheat region in the eastern United States. Phenotype MLDSD is virulent to Lr17 and Lr41 and was widely distributed in the Great Plains. Virulence to Lr21 was not found in any of the tested isolates. Virulence to Lr11 and Lr18 increased in 2008 in the soft red winter wheat regions. Two separate epidemiological zones of P. triticina in the soft red winter wheat region of the southern and eastern states and in the hard red wheat region of the Great Plains were described.

Molecular Characterization of Resistance to Fusarium Head Blight in U.S. Soft Red Winter Wheat Breeding Line VA00W-38

Crop Science ◽  
2012 ◽  
Vol 52 (5) ◽  
pp. 2283-2292 ◽  
Author(s):  
Shuyu Liu ◽  
Mark D. Christopher ◽  
Carl A. Griffey ◽  
Marla D. Hall ◽  
Patty G. Gundrum ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Fusarium Head Blight ◽  
Molecular Characterization ◽  
Wheat Breeding ◽  
Breeding Line ◽  
Head Blight ◽  
Soft Red Winter Wheat ◽  
Red Winter Wheat

scholarly journals Evaluation of Components of Fusarium Head Blight Resistance in Soft Red Winter Wheat Germ Plasm Using a Detached Leaf Assay

Plant Disease ◽  
2005 ◽  
Vol 89 (4) ◽  
pp. 404-411 ◽  
Author(s):  
R. A. Browne ◽  
J. P. Murphy ◽  
B. M. Cooke ◽  
D. Devaney ◽  
E. J. Walsh ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Incubation Period ◽  
Germ Plasm ◽  
Head Blight ◽  
Detached Leaf Assay ◽  
Detached Leaf ◽  
Soft Red Winter Wheat ◽  
Fhb Resistance ◽  
Moderately Resistant ◽  
Red Winter Wheat

A large environmental influence on phenotypic estimates of disease resistance and the complex polygenic nature of Fusarium head blight (FHB) resistance in wheat (Triticum aestivum) are impediments to developing resistant cultivars. The objective of this research was to investigate the utility of a detached leaf assay, inoculated using inoculum from isolates of Microdochium nivale var. majus, to identify components of FHB resistance among 30 entries of U.S. soft red winter wheat in the 2002 Uniform Southern FHB Nursery (USFHBN). Whole plant FHB resistance of the USFHBN entries was evaluated in replicated, mist-irrigated field trials at 10 locations in eight states during the 2001-2002 season. Incubation period (days from inoculation to the first appearance of a dull gray-green water-soaked lesion) was the only detached leaf variable significantly correlated across all FHB resistance parameters accounting for 45% of the variation in FHB incidence, 27% of FHB severity, 30% of Fusarium damaged kernels, and 26% of the variation in grain deoxynivalenol (DON) concentration. The results for incubation period contrasted with previous studies of moderately resistant European cultivars, in that longer incubation period was correlated with greater FHB susceptibility, but agreed with previous findings for the Chinese cultivar Sumai 3 and CIMMYT germ plasm containing diverse sources of FHB resistance. The results support the view that the detached leaf assay method has potential for use to distinguish between specific sources of FHB resistance when combined with data on FHB reaction and pedigree information. For example, entry 28, a di-haploid line from the cross between the moderately resistant U.S. cultivar Roane and the resistant Chinese line W14, exhibited detached leaf parameters that suggested a combination of both sources of FHB resistance. The USFHBN represents the combination of adapted and exotic germ plasm, but four moderately resistant U.S. commercial cultivars (Roane, McCormick, NC-Neuse, and Pat) had long incubation and latent periods and short lesion lengths in the detached leaf assay as observed in moderately FHB resistant European cultivars. The dichotomy in the relationship between incubation period and FHB resistance indicates that this may need to be considered to effectively combine exotic and existing/adapted sources of FHB resistance.

Effect of Preripe Harvest and Artificial Drying on the Milling and Baking Quality of Soft Red Winter Wheat 1

Crop Science ◽  
1982 ◽  
Vol 22 (4) ◽  
pp. 871-876 ◽  
Author(s):  
Allen W. Kirlies ◽  
Thomas L. Housley ◽  
Abdallah M. Emam ◽  
Fred L. Patterson ◽  
Martin R. Okos
Keyword(s):  
Winter Wheat ◽  
Baking Quality ◽  
Soft Red Winter Wheat ◽  
Red Winter Wheat

Evaluation of Soft Red Winter Wheat Forage Yield, Nutritive Value and Tetany Hazard as Influenced by Sampling Date and Nitrogen Fertilization

2007 ◽  
Vol 32 (1) ◽  
pp. 1-6
Author(s):  
Clayton R. Bailey ◽  
Lathan B. Daniels ◽  
Wayne K. Coblentz ◽  
Elizabeth B. Kegley ◽  
Levi J. McBeth ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Nitrogen Fertilization ◽  
Nutritive Value ◽  
Forage Yield ◽  
Soft Red Winter Wheat ◽  
Red Winter Wheat
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