Comparative analysis of Australian and Canadian barleys for seed dormancy and malting quality

Zhang, Xiaoqi; Westcott, Sharon; Panozzo, Joe; Çakır, M.; Harasymow, Stefan; Tarr, A.; Broughton, Sue; Lance, Reg; Li, Chengdao

doi:10.1007/s10681-011-0576-x

Cited by 7 publications

(15 citation statements)

References 22 publications

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“…In certain years the occurrence of more than average precipitation during harvest in western Canada has coincided with an increased incidence of PHS in barley. A similar population, where Baudin was crossed with the Canadian cultivar AC Metcalfe, showed similar trends in PHS resistance but better overall malt quality when grown in Australia (Zhang et al, 2012). Only when precipitation was negligible (1 mm) was PHS avoided.…”

Section: Discussionmentioning

confidence: 81%

“…The lines had lower grain protein content than Baudin (Table 4), likely due to better adaptability to Canadian growing conditions, which contributed to improved malt quality as higher grain protein restricts endosperm modification (Burger and LaBerge, 1985). The BM0253-409 line likely achieved PHS resistance from some of Baudin's other dormancy QTLs (Zhang et al, 2012). BM0253-409, a line with the TR253 allele on chromosome 5H but yet PHS resistant, did demonstrate "Canadian-type" malt quality.…”

Section: Discussionmentioning

confidence: 97%

“…The original cross was made between the Australian malting barley cultivar, Baudin (PHS resistant) (Zhang et al, 2012), and a Canadian breeding line, TR253, which had good disease resistance and "Canadian-type" malt quality. The original cross was made between the Australian malting barley cultivar, Baudin (PHS resistant) (Zhang et al, 2012), and a Canadian breeding line, TR253, which had good disease resistance and "Canadian-type" malt quality.…”

Section: Materials and Methods Genotypesmentioning

confidence: 99%

“…Recent fine mapping of the area (Zhang et al, 2011) has identified several additional markers, but the mapping was unable to differentiate a cluster of genes from a single regulatory gene due to insufficient polymorphism among the samples tested. The strategy has led to the release of 'Baudin', an Australian cultivar with good PHS resistance and good malting quality without the longer amplicon product associated with "Canadian-type" quality (Zhang et al, 2012). Polymerase chain reaction (PCR) performed with a molecular marker, GMS001, on chromosome 5HL produces a shorter amplicon product associated with the SD2-type PHS resistance.…”

mentioning

confidence: 99%

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Identification of Barley Breeding Lines Combining Preharvest Sprouting Resistance with “Canadian‐type” Malting Quality

Edney¹,

Legge

Izydorczyk³

et al. 2013

Crop Science

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1447ReseaRch T wo-rowed cultivars of Canadian malting barley (Hordeum vulgare L.) are known to produce excellent quality malt. High levels of starch-degrading enzymes and free amino nitrogen (FAN) combined with good extract levels result in a malt quality profile that has strong market demand, especially among high-adjunct brewers. These desirable qualities in Canadian malt originate from the absence of dormancy and a rapid onset of germination in barley, which allows good enzyme development and adequate endosperm breakdown. However, the tendency for rapid germination predisposes the Canadian barley to preharvest sprouting (PHS), a phenomenon whereby barley germinates in the field under extended moist conditions at or near harvest time. Sprouting in malting barley is undesirable as it leads to reduction of germinative energy during storage, which consequently results in poor-quality malt (Briggs et al., 1981) with high levels of wort b-glucan and low extract. Good-quality malt can be made from slightly sprouted barley (Sole, 1994) but only if dry barley has ABSTRACT Rapid onset of germination in Canadian malting barley (Hordeum vulgare L.) facilitates production of good quality malt but predisposes barley to preharvest sprouting (PHS). Dormancy can be bred into barley to avoid PHS but some dormancy genes negate the potential for the "Canadian-type" malt quality associated with a rapid start to germination. The microsatellite marker, GMS001, identified lines with PHS resistance and "Canadian-type" malt quality in a cross between an Australian cultivar, Baudin, with PHS resistance, and a Canadian malt barley breeding line, TR253, without PHS resistance. The resulting population was grown at three sites over 2 yr with select site/years malted and analyzed for quality. Rapid visco analysis indicated PHS in some barley lines with as little as 11 mm of rain near harvest. The rapid visco analysis results substantiated the importance of the marker on chromosome 5H as breeding lines with the Baudin allele were less susceptible to sprouting, although they exhibited variable malt quality. Lines with the TR253 allele were PHS susceptible but had better and more consistent malt quality. Among the lines with the Baudin allele, five with PHS resistance and consistently good malt quality were identified. Among the lines with the TR253 allele, one showed good PHS resistance and the desirable "Canadiantype" malt quality. These lines could serve as potential parents of future genotypes combining PHS resistance with good "Canadian-type" malting potential.

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Section: Discussionmentioning

confidence: 81%

Section: Discussionmentioning

confidence: 97%

Section: Materials and Methods Genotypesmentioning

confidence: 99%

mentioning

confidence: 99%

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Identification of Barley Breeding Lines Combining Preharvest Sprouting Resistance with “Canadian‐type” Malting Quality

Edney¹,

Legge

Izydorczyk³

et al. 2013

Crop Science

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“…Among the numerous challenges breeders face, one is to develop cultivars that combine high yield with improved malt quality traits. Pyramiding both agronomic and malt quality traits in barley is a major target of conventional and marker‐based barley breeding . Dealing with multiple and usually correlated nature of malt quality traits raises yet another challenge to breeding malt barley cultivars .…”

Section: Introductionmentioning

confidence: 99%

Association and genome analyses to propose putative candidate genes for malt quality traits

et al. 2018

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BACKGROUND We studied the genetics of nine malt quality traits using association genetics in a panel of North Dakota, ICARDA, and Ethiopian barley lines. Grain samples harvested from Bekoji in 2011 and 2012 were used. RESULTS The mapping panel revealed strong population structure explained by inflorescence‐type, geographic origin, and breeding history. North Dakota germplasm were superior in malt quality traits and they can be donors to improve malt quality properties. We identified 106 marker‐trait associations (MTAs) for the nine traits, representing 81 genomic regions across all barley chromosomes. Chromosomes 3H, 5H, and 7H contained most of the MTAs (58.5%). Nearly 18.5% of these genomic regions contained two to three malt quality traits. Within ±250 kb of 81 genomic regions, we recovered 348 barley genes, with some potential impacting malt quality. These include invertase, β‐fructofuranosidase, α‐glucosidase, serine carboxypeptidase, and bidirectional sugar transporter SWEET14‐like protein. Eighteen of these genes were also previously reported in the Hordeum Toolbox, and 17 of them highly expressed during the germination process. CONCLUSION The results from this study invite further follow‐up functional characterization experiments to relate the genes with individual malt quality traits with higher confidence. It also provides germplasm resources for malt barley improvement. © 2018 Society of Chemical Industry

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Mapping a major QTL for malt extract of barley from a cross between TX9425 × Naso Nijo

et al. 2015

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One major QTL-controlling malt extract was identified on 2H, based on the data from four different environments and a large number of DH lines, determining 48% of phenotypic variation. This QTL is of a high value for marker-assisted selection. Improving malting quality traits is one of the major breeding objectives for barley breeding programmes. Among different quality traits, malt extract is one of the most important, determining the yield of beer production. The use of molecular markers linked to loci affecting the quality traits can greatly improve selection efficiency. However, the discovery of closely linked markers relies on not only the availability of the loci, but the accuracy of phenotyping. In this experiment, 188 doubled-haploid lines derived from the cross between a Japanese malting barley and a Chinese feed barley were grown in four different environments (two sites × 2 years). Different quality traits were determined and used to map QTL for these traits. Several QTLs were identified for different quality traits. One major QTL-controlling malt extract was identified on 2H and determined 48% of phenotypic variation with the closest marker of GBM1121. This QTL was consistently expressed in all four environments and is of a high value for marker-assisted selection in malting barley breeding.

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Comparative analysis of Australian and Canadian barleys for seed dormancy and malting quality

Cited by 7 publications

References 22 publications

Identification of Barley Breeding Lines Combining Preharvest Sprouting Resistance with “Canadian‐type” Malting Quality

Identification of Barley Breeding Lines Combining Preharvest Sprouting Resistance with “Canadian‐type” Malting Quality

Association and genome analyses to propose putative candidate genes for malt quality traits

Mapping a major QTL for malt extract of barley from a cross between TX9425 × Naso Nijo

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