Epistasis and genotype-by-environment interaction of grain protein content in durum wheat

Bnejdi, Fethi

doi:10.1590/s1415-47572010000100021

Cited by 22 publications

(18 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The traits SL, SG and TKW showed low heritability values, indicating little additive variation and also that the genetic effects of dominance and epistatic interactions had a significant influence, adding to an important component of environmental variation. These results are in accordance with reports published by other authors in wheat (Bnejdi and El Gazzah 2010;Erkul et al 2010;Dvojković et al 2010;Sultan et al 2011;Abd El-Rahman 2013;Amin 2013). The negative dominance variance for SP, SS, HW and GY may be due to micro-environmental variations, sampling errors and / or the fact that the basic generations are inefficient to determine the variance of dominance in the analysis (Novoselović et al 2004;Dvojković et al 2010).…”

Section: Resultssupporting

confidence: 93%

“…The low effects of additive and the duplicate epistasis determine that selection in the early segregating generation is not efficient. The presence of significant epistatic effects for these traits were reported by several authors in wheat (Bnejdi and El Gazzah 2010;Tonk et al 2011;Ali et al 2014;Hassan and El-Said 2014;Darwish and El-Nahas 2015). However, many publications indicated that the results depend on the parents used and the evaluation site or environment.…”

Section: Resultsmentioning

confidence: 68%

“…However, many publications indicated that the results depend on the parents used and the evaluation site or environment. In this regard, Bnejdi and El Gazzah (2010) and Erkul et al (2010) reported fit to the three-parameter model.…”

Section: Resultsmentioning

confidence: 96%

“…The presence of duplicate epistasis type in quantitative trait might limit the range of variability and the selection success in the early generations could be negatively affected (Ljubičić et al 2016). Different models and magnitude of the epistatic genetic effects for the SL, SG and GY have been published in wheat (Ali et al 2014;Bnejdi and El Gazzah 2010;Grzesik 2000;Dvojković et al 2010;Tonk et al 2011;Hassan and El-Said 2014;Darwish and El-Nahas 2015).…”

Section: Resultsmentioning

confidence: 99%

See 3 more Smart Citations

Genetic parameters estimation in quantitative traits of a cross of triticale (x Triticosecale W.)

et al. 2018

View full text Add to dashboard Cite

Triticale (x Triticosecale Wittmack) is a cereal used in Argentina as a winter seasonal pasture or feeding grain. Efforts made on breeding have led to varieties with potential grain yield similar or greater than with wheat. The aim of this study was to determine the gene effects, heritability, genetic gain, heterosis and inbreeding depression in various quantitative traits of a cross from contrasting lines of triticale using generation means analysis. The thousand kernel weight was adjusted to a model of additive-dominance, while the rest of the traits exhibited significant epistatic effects: additive x additive (i) for hectoliter weight, additive x dominance (j) for number grains per spike and grain yield per plant. Other traits showed a more complex as inheritance additive x additive (i) and additive x dominance (j) interactions effects for spike length or additive x dominance (j) and dominance x dominance (l) interactions effects for number of spikes per plant and number of spikelets per spike. High values of heritability and genetic gain were also detected for grain yield, spikelets per spike, spike per plant and hectoliter weight. All traits except spike per plant had positive relative mid-parent heterosis, but none resulted in positive heterobeltiosis, therefore this cross is not recommended for obtaining hybrids varieties. Selection in early generations by thousand kernel weight and hectoliter weight would be efficient, while the selection in advanced generations where segregation is minimal would be recommended for the remaining traits.

show abstract

Section: Resultssupporting

confidence: 93%

Section: Resultsmentioning

confidence: 68%

Section: Resultsmentioning

confidence: 96%

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Genetic parameters estimation in quantitative traits of a cross of triticale (x Triticosecale W.)

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Thus, the possibility to enhance GPC through plant breeding may be limited, although not completely absent (e.g. Bnejdi & El Gazzah, 2010;Bogard et al, 2010). The conclusion of Kibite & Evans (1979) is generally consistent with the pattern obtained in the present study, where close relationships between effects on GPY and GY, especially for O 3 , were found over a wide range of genetic variation represented by a large number of cultivars.…”

Section: Discussionsupporting

confidence: 89%

Yield vs. quality trade-offs for wheat in response to carbon dioxide and ozone

Pleijel

Uddling

2011

Glob. Change Biol.

View full text Add to dashboard Cite

Although it is established that there exist potential trade-offs between grain yield and grain quality in wheat exposed to elevated carbon dioxide (CO ) and ozone (O ), their underlying causes remain poorly explored. To investigate the processes affecting grain quality under altered CO and O , we analysed 57 experiments with CO or O exposure in different exposure systems. The study covered 24 cultivars studied in 112 experimental treatments from 11 countries. A significant growth dilution effect on grain protein was found: a change in grain yield of 10% by O was associated with a change in grain protein yield of 8.1% (R =0.96), while a change in yield effect of 10% by CO was linked to a change in grain protein yield effect of 7.5% (R =0.74). Superimposed on this effect, elevated CO , but not O , had a significant negative effect on grain protein yield also in the absence of effects on grain yield, indicating that there exists a process by which CO restricts grain protein accumulation, which is absent for O . Grain mass, another quality trait, was more strongly affected by O than grain number, while the opposite was true for CO . Harvest index was strongly and negatively influenced by O , but was unaffected by CO . We conclude that yield vs. protein trade-offs for wheat in response to CO and O are constrained by close relationships between effects on grain biomass and less than proportional effects on grain protein. An important and novel finding was that elevated CO has a direct negative effect on grain protein accumulation independent of the yield effect, supporting recent evidence of CO -induced impairment of nitrate uptake/assimilation. Finally, our results demonstrated that processes underlying responses of grain yield vs. quality trade-offs are very different in wheat exposed to elevated O compared to elevated CO .

show abstract

Ecological Plasticity of Varieties Triticum Aestivum L., Triticum Durum Desf. And Hordeum Vulgare L. Of Various Origins in the Conditions of Primorsky Krai

Murugova¹,

Клыков²,

Богдан³

et al. 2021

Fundamental and Applied Scientific Research in the Development of Agriculture in the Far East (AFE-2021)

View full text Add to dashboard Cite

Epistasis and genotype-by-environment interaction of grain protein content in durum wheat

Cited by 22 publications

References 30 publications

Genetic parameters estimation in quantitative traits of a cross of triticale (x Triticosecale W.)

Genetic parameters estimation in quantitative traits of a cross of triticale (x Triticosecale W.)

Yield vs. quality trade-offs for wheat in response to carbon dioxide and ozone

Ecological Plasticity of Varieties Triticum Aestivum L., Triticum Durum Desf. And Hordeum Vulgare L. Of Various Origins in the Conditions of Primorsky Krai

Contact Info

Product

Resources

About