Quantitative trait loci influencing grain protein content in tetraploid wheats

Blanco, Antonio; Giovanni, Claudio De; Laddomada, Barbara; Sciancalepore, A.; Simeone, Rosanna; Devos, Katrien M.; Gale, M. D.

doi:10.1111/j.1439-0523.1996.tb00925.x

Cited by 77 publications

(61 citation statements)

References 43 publications

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“…Various QTL loci have been identified previously for wheat protein content. Those including loci on chromosome 2DL (Prasad et al, 1999), 5DL (Law et al, 1978), 4B, 5A, 6A, 6B, 7B (durum wheat, Blanco et al, 1996), and on 2B, 1A, 5AL, 7AL (Campbell et al, 2001). It is unclear that if there are any relationships between the main QTL for protein content identified in this study and the QTLs previously identified on 5A in Durum wheat (Blanco et al, 1996) and on 5AL in bread wheat (Campbell et al, 2001).…”

Section: Protein Contentmentioning

confidence: 41%

“…Those including loci on chromosome 2DL (Prasad et al, 1999), 5DL (Law et al, 1978), 4B, 5A, 6A, 6B, 7B (durum wheat, Blanco et al, 1996), and on 2B, 1A, 5AL, 7AL (Campbell et al, 2001). It is unclear that if there are any relationships between the main QTL for protein content identified in this study and the QTLs previously identified on 5A in Durum wheat (Blanco et al, 1996) and on 5AL in bread wheat (Campbell et al, 2001). Whilst most wheat storage proteins are encoded by group 1 chromosomes (Payne et al, 1982;Pogna et al, 1990;Singh and Shepherd, 1988), the majority of the identified loci for protein content are not located on group 1 chromosomes.…”

Section: Protein Contentmentioning

confidence: 99%

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Wheat flour protein content and water absorption analysis in a doubled haploid population

Sutherland

Kammholz

et al. 2007

Journal of Cereal Science

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A wheat_maize induced doubled haploid population that segregates at the Awned locus for awned and awnless phenotypes were studied at two field sites using a genetic linkage map. Interval QTL analysis indicated that significant QTLs for wheat flour water absorption and protein content were located on a linkage group associated with the morphological marker, awns. The QTL peak for flour water absorption was located at the Awned locus (B1, 5AL), whilst the QTL peak for protein content was located nearby, 10.1 cm away from the Awned locus. The locations of those QTL were confirmed by analysing data from two independent field trials conducted under different environment conditions. The QTL identified for water absorption controlled 12% and 11% of the observed variance at the two field trials, whilst for flour protein content the QTL explained 7% and 19% of the variance respectively. Variance component analysis indicated that the QTL for water absorption controlled approximately 14.8-25.0% and 13.6-23% of the genetic variance at the two sites studied (Roma and imbour) whilst the QTL for protein content explained between 12.8% and 30.4% of the genetic variance at Roma and 34.7-82.6% at Jimbour. Cross-site analysis with composite interval mapping approach resulted in significant LOD values of 6.12 and 9.94 for water absorption and protein content, respectively. The QTL for water absorption was independent from the hardness locus.

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Section: Protein Contentmentioning

confidence: 41%

Section: Protein Contentmentioning

confidence: 99%

Wheat flour protein content and water absorption analysis in a doubled haploid population

Sutherland

Kammholz

et al. 2007

Journal of Cereal Science

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“…The association of gluten strength and plant height suggests linkage or pleiotropy. The Rht1 allele, the likely source of gibberellic acid-insensitive semidwarfism in our populations, is known to reside on chromosome 4B (Blanco et al 1996;Ellis et al 2002). Elouafi et al (2000) reported a QTL on 4B that affected SDS-sedimentation volume, and Clarke et al (2008) reported a QTL for alveograph curve length on chromosome 4B in the W9262-260D3/Kofa population.…”

Section: Resultsmentioning

confidence: 88%

“…The low predictive ability or high number of QTL revealed by these studies would make it unreliable to utilize these makers in routine breeding, and indicates the complexity of the inheritance of gluten strength. Some of these QTL are reported on chromosome 4B (Elouafi et al 2000), and could show linkage to the Rht1 dwarfing allele, also known to reside on chromosome 4B (Blanco et al 1996;Ellis et al 2002).…”

mentioning

confidence: 99%

Gluten index compared with SDS-sedimentation volume for early generation selection for gluten strength in durum wheat

Clarke¹,

Clarke²,

Ames³

et al. 2010

Can. J. Plant Sci.

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. 2010. Gluten index compared with SDSsedimentation volume for early generation selection for gluten strength in durum wheat. Can. J. Plant Sci. 90: 1Á11. Gluten strength is an important end-use quality factor in durum wheat [Triticum turgidum L. ssp. durum (Desf.) Husn.], affecting pasta manufacture and cooking quality. The objective of this research was to determine the inheritance and heritability of gluten index in comparison with the widely used SDS-sedimentation (sodium dodecyl sulphate) technique for selection for gluten strength. Seven durum populations were grown in replicated, multi-location, multi-year field trials in Saskatchewan, Canada, during the period 1995 to 2002. Gluten index and SDS-sedimentation volume were determined on all plots after harvest. Both traits were affected by genotype, and to a lesser extent by year or location. Genotype environmental interactions were generally minor. The majority of genotypes in each population had similar relative ranking for gluten index and SDS-sedimentation volume in each environment. Both traits were highly heritable, ranging from 0.80 to 0.97, and both were complexly inherited with estimates of effective factors ranging from 3 to 21. Gluten index and SDS-sedimentation volume were highly correlated, indicating that they are measuring similar aspects of gluten strength. SDS-sedimentation volume was positively associated with protein concentration (r 2 00.52), but gluten index was not. Therefore, gluten index would be more desirable than SDS-sedimentation volume for use in selection where there are within-trial protein concentration trends.

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“…It is very difficult to increase the PC in wheat because of its complex genetic system, and its sensitivity to the environment (Simmonds, 1995). To understand PC genetics at the molecular level, several studies have been conducted on PC quantitative trait loci (QTL), which have provided many valuable data for marker-assisted breeding (MAB) (Blanco et al, 1996;Prasad et al, 1999;Börner et al, 2002;Olmos et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

Dynamic QTL analysis of protein content and glutamine synthetase activity in recombinant inbred wheat lines

Liang

et al. 2015

Genet. Mol. Res.

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ABSTRACT. Protein content (PC) is a crucial factor that determines the end-use and nutritional quality of wheat (Triticum aestivum). Glutamine synthetase (GS), which is a major participant in nitrogen metabolism, can convert inorganic nitrogen into organic nitrogen. Although many studies have been conducted on PC and GS, a dynamic analysis of all of the filling stages has not been conducted. Therefore, 115 F 9-10 recombinant inbred wheat lines of 'R131/ R142' were used to analyze PC and GS activity during different developmental stages, using the conditional quantitative trait loci (QTL) mapping method. Twenty-two and six conditional QTL were detected for PC and GS activily, respectively. More QTL in leaf PC were detected during the early filling stages than in the later filling stages. Grain PC QTL displayed different dynamic variations to leaf PC QTL during the entire grain-filling stages. All of the QTL were expressed differently over time, and nine conditional QTL were detected across two filling stages. QTL with similar functions may have tended to group in specific locales. This study provides dynamic 8707 Dynamic QTL analysis in wheat RIL ©FUNPEC-RP www.funpecrp.com.br Genetics and Molecular Research 14 (3): 8706-8715 (2015) genetic information on protein accumulation during grain-filling stages.

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Quantitative trait loci influencing grain protein content in tetraploid wheats

Cited by 77 publications

References 43 publications

Wheat flour protein content and water absorption analysis in a doubled haploid population

Wheat flour protein content and water absorption analysis in a doubled haploid population

Gluten index compared with SDS-sedimentation volume for early generation selection for gluten strength in durum wheat

Dynamic QTL analysis of protein content and glutamine synthetase activity in recombinant inbred wheat lines

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