scholarly journals QTL Mapping Reveals the Relationship between Pasting Properties and Malt Extract in Barley

2018 ◽  
Vol 19 (11) ◽  
pp. 3559 ◽  
Author(s):  
Junmei Wang ◽  
Jianming Yang ◽  
Wei Hua ◽  
Xiaojian Wu ◽  
Jinghuan Zhu ◽  
...  
Keyword(s):  
Pasting Properties ◽  
Malting Quality ◽  
Doubled Haploid Population ◽  
Malt Extract ◽  
Malting Barley ◽  
Breeding Lines ◽  
Close Relationship ◽  
Haploid Population ◽  
The Relationship ◽  
Variance Explained

Pasting properties are important characteristics of barley starch from a processing standpoint. Many studies reported the close relationship between pasting properties and malting quality, especially malt extract. However, most conclusions were derived from the correlation between pasting properties and malting quality using a set of cultivars or breeding lines. In this study, a doubled haploid population of 150 lines from a cross between a Japanese malting barley and a Chinese feed barley was grown in four different environments (two sites × two years). Based on average values from all different environments, 17 significant quantitative trait loci (QTL) were identified for pasting properties. The genetic variance explained by these QTL varied from 7.0 to 23.2%. Most QTL controlling pasting properties were located on 1H, 2H, 5H, and 7H. Results confirmed the linkage between pasting properties and malt extract, with most of the QTL for pasting properties becoming nonsignificant when using malt extract as a covariate. Breakdown showed the closest correlation with malt extract. Molecular markers closely linked to the QTL can be used to select desired pasting properties to improve malting quality.

scholarly journals Mapping and QTL analysis of the barley population Chebec × Harrington

2003 ◽  
Vol 54 (12) ◽  
pp. 1125 ◽  
Author(s):  
A. R. Barr ◽  
A. Karakousis ◽  
R. C. M. Lance ◽  
S. J. Logue ◽  
S. Manning ◽  
...  
Keyword(s):  
Cyst Nematode ◽  
Cereal Cyst Nematode ◽  
Malting Quality ◽  
Doubled Haploid Population ◽  
Malt Extract ◽  
Malting Barley ◽  
Breeding Programs ◽  
Genomic Location ◽  
Haploid Population ◽  
Barley Population

A doubled haploid population of 120 individuals was produced from the parents Chebec, an Australian 2-row barley of feed quality with resistance to the cereal cyst nematode, and Harrington, a 2-rowed, Canadian variety of premium malting quality. This paper describes 18 field and laboratory experiments conducted with the population and summarises the traits mapped and analysed. The genomic location of 25 traits and genes is described and marker–trait associations for 5 traits (malt extract, diastatic power, resistance to cereal cyst nematode, early flowering, resistance to pre-harvest sprouting) important to Australian efforts to improve malting barley varieties have been used in practical breeding programs. Detailed maps for these populations are shown in this paper, while a consensus map incorporating these maps and further experiments on the populations are described elsewhere in this issue.

Mapping and QTL analysis of the barley population Amagi Nijo × WI2585

2003 ◽  
Vol 54 (12) ◽  
pp. 1141 ◽  
Author(s):  
M. A. Pallotta ◽  
S. Asayama ◽  
J. M. Reinheimer ◽  
P. A. Davies ◽  
A. R. Barr ◽  
...  
Keyword(s):  
Doubled Haploid ◽  
Qtl Analysis ◽  
Malting Quality ◽  
Doubled Haploid Population ◽  
Malt Extract ◽  
Diastatic Power ◽  
Haploid Population ◽  
Manganese Efficiency ◽  
Barley Population

A map for the barley doubled haploid population Amagi Nijo × WI2585 was constructed to examine manganese efficiency derived from Amagi Nijo. Manganese efficiency conferred by the previously identified locus Mel1 was validated. No other loci contributing to manganese efficiency were identified, possibly because of poor maker coverage in some regions. The map was additionally used to look for loci contributing to some aspects of malting quality. A locus on 2HL was found to be associated with malt extract, and 2 loci on 4HL and 5H, respectively, were found to be associated with diastatic power.

scholarly journals Breeding Malting Barley under Stress Conditions in South America

2011 ◽  
Vol 40 (No. 4) ◽  
pp. 140-147 ◽  
Author(s):  
E. Germán S
Keyword(s):  
Grain Size ◽  
South America ◽  
Grain Yield ◽  
Leaf Rust ◽  
Production Efficiency ◽  
Malting Quality ◽  
Malt Extract ◽  
Malting Barley ◽  
Net Blotch ◽  
Early Maturity

The annual average area sown with barley (Hordeum vulgare) in South America during 1999–2003 was 795 000 ha. In Argentina, Brazil, Chile and Uruguay, two-rowed spring cultivars are used mostly for malt production. Research has been developed in private malting companies and official institutions supported by the industry. In Argentina, tolerance to drought and heat stress during grain filling are important in drier areas. Yield and malt extract had been improved in cultivars released from 1940 to 1998. In Brazil, progress in grain yield, grain size, malting quality, early maturity, and resistance to net blotch, powdery mildew, and leaf rust has been achieved by EMBRAPA and malting companies. Higher tolerance to soil acidity and resistance to spot blotch are required. Since 1976, malting barley breeding in INIA-Chile has improved grain yield, grain size, beer production efficiency, and resistance to scald, net blotch, stripe rust, and leaf rust. Uruguay produces high quality malt exported mainly to Brazil. Malting companies have released locally bred and introduced cultivars since the early 1970’s. Initiated in 1988, INIA-Uruguay breeding program has improved yield, malting quality, and lodging and disease resistance. Fusarium head blight is a new challenge for research in Brazil and Uruguay. Information regarding malting barley production, the most important stresses in different areas of production, and breeding progress under South American conditions is provided.  

scholarly journals The use of molecular markers for characterisation of spring barley for breeding to Fusarium head blight resistance

2011 ◽  
Vol 51 (No. 11) ◽  
pp. 483-490 ◽  
Author(s):  
M. Špunarová ◽  
J. Ovesná ◽  
L. Tvarůžek ◽  
L. Kučera ◽  
J. Špunar ◽  
...  
Keyword(s):  
Fusarium Head Blight ◽  
Spring Barley ◽  
Fusarium Head Blight Resistance ◽  
Malting Quality ◽  
F1 Hybrids ◽  
Malt Extract ◽  
Head Blight ◽  
Breeding Lines ◽  
Susceptible Line ◽  
Dh Lines

Fusarium head blight (FHB) is a barley disease, which occurs every year in various areas of barley cultivation all over the world and the increasing incidence has been confirmed in the Czech Republic also during the last years. We aimed to emply AFLP (Amplified fragment length polymorphism) and SSR (Single sequence repeats) markers to describe diversity among breeding lines with a sufficient level of resistance towards FHB and to find marker(s) associated with the analysed traits. The number of eight accessions including five expected resistance donors and three sensitive lines were tested in the field and laboratory. The field values and the amount of deoxynivalenol were positively correlated (r = 0.92). The laboratory test and content DON manifested also a high correlation (r = 0.73). Several DH lines developed from androgenetic barley progenies of the F1 hybrids between the susceptible line PI 383933 and resistant line PEC 210 or the susceptible line PI 383933 and resistant cultivar Chevron were found resistant towards Fusarium infection in both the field and laboratory tests. Low infestation was found at line DH 37 from combination Chevron × PI 383933 and lines DH48, DH49, DH50 and DH55 from the combination PEC 210 × PI 383933. Cluster analyses based on 68 AFLP and 18 SSR markers demonstrate a genetic relationship among parental genotypes and DH lines.Some DH lines combined a sufficient degree of resistance against FHB and extract content (basic parameters malting quality). Statistically significant differences in malt-extract values were observed between groups of the DH lines possessing and not possessing the AFLP marker CAA/AGC 341bp. The markers will be further evaluated and optionally used for MAS.

NEAR-INFRARED REFLECTANCE ESTIMATES OF GRAIN PROTEIN AND MALT EXTRACT IN HILL AND ROW PLOT EVALUATIONS OF SPRING MALTING BARLEY

1990 ◽  
Vol 70 (1) ◽  
pp. 71-78 ◽  
Author(s):  
S. TRAGOONRUNG ◽  
P. M. HAYES ◽  
S. L. BROICH
Keyword(s):  
Recurrent Selection ◽  
Near Infrared ◽  
Malting Quality ◽  
Grain Protein ◽  
Malt Extract ◽  
Infrared Reflectance ◽  
Malting Barley ◽  
Near Infrared Reflectance ◽  
Hill Plot ◽  
Calibration Equations

Expensive, time-consuming analyses can limit selection responses for grain protein and malt extract in a malting barley improvement program. Alternative breeding strategies, such as doubled haploid recurrent selection, rapidly produce more genotypes than can be evaluated in conventional plots. Prior to implementing a doubled haploid recurrent selection program for malting quality we sought to test the utility of hill plot evaluation and near-infrared reflectance (NIR) prediction for grain protein and malt extract. Five- and six-wavelength calibration equations were generated for prediction of grain protein and malt extract, respectively. The multiple correlation coefficient of the protein equation (0.96) was higher than that of the malt extract equation (0.88). Calibration equations for both traits based on separate locations and spike classes (two-row vs. six-row) were less robust than the multiple environment, combined equations. The grain protein and malt extract equations had acceptable predictive power for both row and hill plot samples. However, in view of differential trait expression in hill and row plots, NIR prediction based on hill plot evaluation is appropriate for grain protein. NIR prediction of malt extract is best deferred until genotypes are evaluated in row plots.Key words: Malting quality, NIR, hill plots, barley

Cerveza barley

2013 ◽  
Vol 93 (3) ◽  
pp. 557-564 ◽  
Author(s):  
W. G. Legge ◽  
J. R. Tucker ◽  
B. Bizimungu ◽  
T. G. Fetch ◽  
S. Haber ◽  
...  
Keyword(s):  
Disease Resistance ◽  
Hordeum Vulgare ◽  
Agronomic Traits ◽  
Malting Quality ◽  
Western Canada ◽  
Malt Extract ◽  
Malting Barley ◽  
Brewing Industry ◽  
Hordeum Vulgare L ◽  
Made In

Legge, W. G., Tucker, J. R., Bizimungu, B., Fetch Jr., T. G., Haber, S., Menzies, J. G., Noll, J. S., Tekauz, A., Turkington, T. K., Savard, M. E. and Choo, T. M. 2013. Cerveza barley. Can. J. Plant Sci. 93: 557–564. Ceveza is a doubled-haploid hulled two-row spring malting barley (Hordeum vulgare L.) cultivar widely adapted to western Canada, Quebec, and the Maritimes. Developed from the cross TR251/Newdale//TR253/Newdale made in 1998, Cerveza was evaluated in the Western Cooperative Two-row Barley Registration Test (2006–2007) and the Collaborative Malting Barley Trials (2007–2008) conducted by the malting and brewing industry before being registered in 2010. Cerveza was also evaluated in Quebec and the Maritimes in 2007–2009. Cerveza's desirable combination of agronomic traits, disease resistance and malting quality, particularly high grain yield and malt extract, should make it a useful cultivar for producers and the malting and brewing industry.

scholarly journals The application of microsatellite analysis in barley malting quality breeding programmes

2014 ◽  
Vol 50 (No. 4) ◽  
pp. 268-277 ◽  
Author(s):  
L. Leišová-Svobodová ◽  
L. Tomková ◽  
T. Sedláček ◽  
V. Psota ◽  
L. Kučera
Keyword(s):  
Quality Parameters ◽  
Microsatellite Analysis ◽  
Malting Quality ◽  
Genotype Data ◽  
Malting Barley ◽  
Discrimination Analysis ◽  
Breeding Lines ◽  
Breeding Programmes ◽  
The Given ◽  
Barley Genotypes

A set of 43 microsatellite loci was used to characterise the malting barley varieties and breeding lines used for the Protected Geographical Indication (PGI) “České pivo” (“Czech beer”) and for other beer types. Genotype data were compared with technological malting quality parameters. The analysis of variance showed significant differences between varieties used for the given PGI and varieties used for other beer types in six variables. Three clusters of varieties specific to the PGI and three clusters specific to  malting barley genotypes for other beer types were identified using a Bayesian approach. The remaining four clusters expressed  effects of parent lines. The discrimination analysis based on malting quality and molecular variables identified only one barley breeding line suitable for the PGI “České pivo”.

scholarly journals Genetic variation among selected pure lines from Turkish barley landrace ‘Tokak’ in yield-related and malting quality traits

2021 ◽  
Vol 19 (4) ◽  
pp. e0702-e0702
Author(s):  
Ibrahim Saygili ◽  
Keyword(s):  
Amylase Activity ◽  
Alpha Amylase ◽  
Malting Quality ◽  
Malt Extract ◽  
Quality Traits ◽  
Malting Barley ◽  
Glucanase Activity ◽  
Beta Glucanase ◽  
Barley Landrace ◽  
Thousand Seed Weight

Aim of study: Improvement of barley cultivars for malting traits suffers from narrow genetic pool in barley for these traits. Landraces are resources that could be used for this purpose. The present study was conducted to determine the variation for malting quality traits within a Turkish barley landrace. Area of study: The study was undertaken in Tokat, a province in Black Sea Region of Turkey. Material and methods: Twenty-five diverse lines, out of 42 unique genotypes previously identified in ‘Tokak’ landrace (PI 470281) based on DNA markers, were evaluated for malting quality traits along with the malting barley cv. ‘Tokak 157/37’ in four field trials. Thousand-seed weight, test weight, grain yield, lodging, malt extract percentage, diastatic power, alpha amylase and malt beta glucanase activities, malt protein and starch contents were determined. Main results: Principal component analysis of malting quality traits revealed that thousand-seed weight, alpha amylase activity, beta glucanase activity and diastatic power were the most discriminatory traits for the lines. As the average of four trials, 15 of the 25 lines evaluated had higher grain yields and 10 of 25 lines had higher malt extract percentages than the standard cultivar ‘Tokak 157/37’. Malt extract was highest in Line 59 in all environments, and this line also had the highest values for beta glucanase activity and starch content. Line 215 had highest values for alpha amylase activity. Lines 59 and 215 clearly had superior malting quality. Research highlights: These lines could harbor novel alleles for these traits to be used in malting barley improvement.

Predicting the Dose of Warfarin for Therapeutic Anticoagulation

1982 ◽  
Vol 47 (03) ◽  
pp. 230-231 ◽  
Author(s):  
N K Sharma ◽  
P A Routledge ◽  
M D Rawlins ◽  
D M Davies
Keyword(s):  
Therapeutic Range ◽  
Significant Relationship ◽  
Maintenance Dose ◽  
Warfarin Dose ◽  
Loading Dose ◽  
Intravenous Injections ◽  
Therapeutic Anticoagulation ◽  
Close Relationship ◽  
The Relationship ◽  
Anticoagulant Response

SummaryThe validity of a previously described technique for predicting warfarin requirements based on the anticoagulant response to a fixed loading dose was assessed prospectively in 57 patients. There was a close relationship between the predicted and initially observed daily warfarin dose required to maintain the patient within the therapeutic range for anticoagulation. The significant relationship between predicted and observed maintenance dose persisted at 4 and 12 weeks although it decreased with increasing time.The relationship between observed and predicted maintenance requirement of warfarin was not affected by the concomitant use of intermittent intravenous injections of heparin when 9 hr was allowed to elapse between the previous dose of heparin and the thrombotest estimation on which the prediction was based.It is concluded that the method is valuable in predicting an individual’s warfarin requirement, although it does not obviate the need for regular monitoring of anticoagulant control.

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