Development of highly sprouting tolerant wheat germplasm with reduced germination at low temperature

Osanai, Shun-Ichi; Amano, Y.; Mares, Daryl J.

doi:10.1007/s10681-005-7887-8

Cited by 14 publications

(10 citation statements)

References 8 publications

(11 reference statements)

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“…Even 1 d at low temperature (10°C) with rainfall in this interval in a moderately susceptible genotype caused > 30% sprouting in Argentina. Temperature experienced during the late stages of ripening, in addition to genotype, determines dormancy in Japanese spring and winter wheats (Osanai et al 2005). The environmental treatments given at physiological maturity in our study also fell within the 20-d interval prior to harvest.…”

Section: Conditions That Induced Deterioration Of Vigormentioning

confidence: 85%

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Early detection of non-visible sprouting in barley seed using rapid viscosity analysis

Bueckert¹,

Lefol²,

Harvey³

2007

Can. J. Plant Sci.

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. 2007. Early detection of non-visible sprouting in barley seed using rapid viscosity analysis. Can. J. Plant Sci. 87: 3-12. Export of grain for malting markets requires viable seed that can withstand storage and shipping conditions. Malting barley is selected for rapid germination. However, barley from the Canadian prairies has minimal dormancy, leading to high risk of sprouting. The goal of this study was to assess the suitability of rapid viscosity analysis (RVA) to detect early non-visible sprouting. Cultivars Harrington (for North America), Alexis (Europe) and CDC Dolly (Western Canada feed barley with low alpha-amylase enzyme activity) were greenhouse grown in Saskatoon, Saskatchewan, and treated in a growth chamber at 12 combinations of temperature (5 to 22°C) and relative humidity (RH; 60 to 95%) for 1 to 9 d at each of two growth stages, physiological or harvest maturity. Harvested seed from treated plants was measured by RVA, alpha-amylase activity, and germination tests. High RVA final viscosity values (> 150) indicated zero sprouting; RVA < 100 and alpha-amylase values > 125 nmol CU h -1 were associated with sprouting. Alexis sprouted more readily than Harrington and CDC Dolly. More than 3 d at 7.5 to 10°C and > 70% RH induced sprouting at harvest maturity. Future research is needed to further refine the RVA cut-off value on a cultivar basis for identifying problem seed. However, in the meantime, these findings can be used by breeding programs to screen genotypes for improved dormancy and by industry to detect barley viability problems prior to storage or transit. On sélectionne l'orge de brasserie pour sa germination rapide. L'orge cultivée dans les Prairies canadiennes se caractérise néanmoins par une dormance minime, ce qui accroît les risques de germination. Les auteurs voulaient voir si l'analyse rapide de la viscosité (ARV) permet de déceler la germination quand elle n'est pas encore visible. À cette fin, ils ont cultivé les variétés Harrington (pour la région de l'Amérique du Nord), Alexis (pour la zone européenne) et CDC Dolly (orge fourragère de l'Ouest canadien à alpha-amylase peu active) en serre à Saskatoon (Saskatchewan) puis ont appliqué 12 régimes de température (de 5 à 22°C) et d'humidité relative (de 60 à 95 %) aux plantes, dans un phytotron, pendant un à 9 jours, à chacun de deux stades de croissance physiologique ou de maturité. Ils ont établi la viscosité des semences des plantes ainsi cultivées, mesuré le degré d'activité de l'alpha-amylase et effectué des essais de germination. Une viscosité finale élevée établie par ARV (> 150) indique l'absence de germination; en revanche, cette dernière est associée à une valeur de moins de 100 pour l'ARV et de plus de 125 nmol CU par heure pour le degré d'activité de l'alpha-amylase. Alexis germe plus facilement que Harrington et CDC Dolly. Récoltées à maturité, les graines germent lorsqu'elles passent plus de trois jours à une température de 7,5 à 10°C, à plus de 70 % d'humidité relative. Il faudrait entreprendre d'autres recherches afin de...

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Section: Conditions That Induced Deterioration Of Vigormentioning

confidence: 85%

“…with sprouting in Japanese wheat (Osanai et al 2005;Yanagisawa et al 2005). Premature sprouting in the Mediterranean environment of Western Australia was identified with lack of drought-induced dormancy, or with cool wet conditions, in addition to genotype (Biddulph et al 2005).…”

Section: Conditions That Induced Deterioration Of Vigormentioning

confidence: 99%

Early detection of non-visible sprouting in barley seed using rapid viscosity analysis

Bueckert¹,

Lefol²,

Harvey³

2007

Can. J. Plant Sci.

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“…Cool temperatures during late maturation are associated with the development of deeper grain dormancy which then provide stronger protection against PHS 44 . On the other side, high temperatures during maturation results in grain with weaker dormancy making them prone to PHS 44 . Grain dormancy is the main genetically controlled factor that directly influences PHS 45 .…”

Section: Discussionmentioning

confidence: 99%

Evaluation of the impact of heat on wheat dormancy, late maturity α-amylase and grain size under controlled conditions in diverse germplasm

Barrero

Porfirio

Hughes

et al. 2020

Sci Rep

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In the Australian wheat belts, short episodes of high temperatures or hot spells during grain filling are becoming increasingly common and have an enormous impact on yield and quality, bringing multi-billion losses annually. This problem will become recurrent under the climate change scenario that forecast increasing extreme temperatures, but so far, no systematic analysis of the resistance to hot spells has yet been performed in a diverse genetic background. We developed a protocol to study the effects of heat on three important traits: grain size, grain dormancy and the presence of Late Maturity α-Amylase (LMA), and we validated it by analysing the phenotypes of 28 genetically diverse wheat landraces and exploring the potential variability existing in the responses to hot spells. Using controlled growth environments, the different genotypes were grown in our standard conditions until 20 days after anthesis, and then moved for 10 days into a heat chamber. Our study showed that our elevated temperature treatment during mid-late filling triggered multiple detrimental effects on yield and quality. We observed a reduction in grain size, a reduction in grain dormancy and increased LMA expression in most of the tested genotypes, but potential resistant lines were identified for each analyzed trait opening new perspectives for future genetic studies and breeding for heat-insensitive commercial lines.

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“…WYMV was not detected in 'OW104' grown in our nurseries; its resistance was comparable to that of other resistant resources such as 'Madsen' and 'Yumechikara'. 'OW104' originated from a cross between a spring wheat line 'OS21-5' and a WYMV-susceptible winter wheat line '61199' (Osanai et al 2005). We have not tested WYMV resistance of 'OS21-5' or its spring wheat progenitors because they do not survive in our field nurseries in winter; further study is necessary to elucidate the origin of the resistance.…”

Section: Discussionmentioning

confidence: 99%

“…In a previous study, we screened 11 breeding lines for WYMV resistance (Yamashita et al 2017). Only 'OW104', a sprouting-tolerant winter wheat cultivar (Osanai et al 2005) and its progeny, 'Kitakei 1838', had no WYM symptoms and no detectable WYMV by enzyme-linked immunosorbent assay (ELISA). Genotypes at Qym1 and Qym2, as represented by SSR markers Xwmc41 and Xwmc754 respectively, of 'OW104' were different from those in 'Madsen', suggesting that a novel gene is responsible for the resistance (Yamashita et al 2017).…”

Section: Introductionmentioning

confidence: 99%

A single QTL on chromosome 6DS derived from a winter wheat cultivar ‘OW104’ confers resistance to <i>Wheat yellow mosaic virus</i>

et al. 2020

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Wheat yellow mosaic (WYM) is a soilborne disease caused by Wheat yellow mosaic virus (WYMV). Symptoms include yellow mosaic coloring of leaves, stunting, and growth inhibition. Severe infection may result in yield loss. WYM is one of the most serious diseases affecting wheat production in East Asia. The most effective control is through breeding resistant cultivars. A winter wheat cultivar, 'OW104', shows little to no symptoms in heavily WYMV-infested fields in Hokkaido, Japan. Here we detected Qym4, a QTL accounting for 45%-57% of WYMV resistance, in the vicinity of the markers Xcfd49, Xbarc183, and Xgpw4357 on wheat chromosome arm 6DS. F 3 progenies with 'OW104' allele at Qym4 showed significantly higher resistance than those with 'Hokushin' homozygote or heterozygote. We developed 'Hokushin' near-isogenic lines by backcrossing with 'Hokushin' as the recurrent parent and 'OW104' as the resistance donor. All the WYMV-resistant BC 5 F 1 /BC 4 F 1 plants carried 'OW104' allele only at Xcfd49. Our results suggest that the introduction of Qym4 confers resistance to WYMV in winter wheat.

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Development of highly sprouting tolerant wheat germplasm with reduced germination at low temperature

Cited by 14 publications

References 8 publications

Early detection of non-visible sprouting in barley seed using rapid viscosity analysis

Early detection of non-visible sprouting in barley seed using rapid viscosity analysis

Evaluation of the impact of heat on wheat dormancy, late maturity α-amylase and grain size under controlled conditions in diverse germplasm

A single QTL on chromosome 6DS derived from a winter wheat cultivar ‘OW104’ confers resistance to <i>Wheat yellow mosaic virus</i>

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