Cytoplasmic effects on quality traits of bread wheat (Triticum aestivum L.)

Ekiz, H.; Kiral, Ali Safi; Akcin, A.; Simsek, L.

doi:10.1007/978-94-011-4896-2_35

Cited by 19 publications

(21 citation statements)

References 13 publications

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“…These results are similar to those reported by Ekiz et al (1998) and Sharma and Sharma (2007). From a breeder's point of view, the h 2 n estimates from the two sites show that the Chili x Cocorit 71 cross has the greatest chance of genetic improvement.…”

Section: Discussionsupporting

confidence: 88%

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

Bnejdi

2010

Genet. Mol. Biol.

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Parental, F1 , F 2 , BC 1 and BC 2 generations of four crosses involving four cultivars of durum wheat (Triticum durum Desf.) were evaluated at two sites in Tunisia. A three-parameter model was found inadequate for all cases except crosses Chili x Cocorit 71 at site Sidi Thabet and Inrat 69 x Karim at both sites. In most cases a digenic epistatic model was sufficient to explain variation in generation means. Dominance effects (h) and additive x additive epistasis (i) (when significant) were more important than additive (d) effects and other epistatic components. Considering the genotype-by-environment interaction, the non-interactive model (m, d, h, e) was found adequate. Additive variance was higher than environmental variance in three crosses at both sites. The estimated values of narrow-sense heritability were dependent upon the cross and the sites and were 0%-85%. The results indicate that appropriate choice of environment and selection in later generations would increase grain protein content in durum wheat.

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Section: Discussionsupporting

confidence: 88%

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

Bnejdi

2010

Genet. Mol. Biol.

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“…In the present study, neither agronomic characteristics nor quality characteristics showed a significant difference between reciprocal crosses, indicating no cytoplasmic effect on these characteristics. This result is consistent with those of Atienza et al (2007) who reported that reciprocal F1 lines did not differ for any of the agronomic traits evaluated with the exception of anthesis date, but disagreed with those of Ekiz et al (1998) and Rajcan et al (2002) who reported significant differences in reciprocal crosses for 1000-kernel weight, protein content, grain hardness, and days to maturity in some crosses.…”

Section: Agronomic and Quality Characteristicssupporting

confidence: 87%

Characterization of agronomic and quality traits and HSW-G5 compositions from the progenies of common wheat (Triticum aestivum L.) with different protein content

Bian¹,

Sun²,

Sun³

et al. 2015

Genet. Mol. Res.

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ABSTRACT. High molecular weight glutenin subunits (HMW-GS) play an essential role in wheat processing quality. In this study, we evaluated the genetic pattern with HMW-GS composition between generations and examined whether agronomic and quality traits were correlated with each other. A wheat (Triticum aestivum L.) cultivar with high protein content and 2 cultivars with low protein content were subjected to a reciprocal cross. Sixteen agronomic and 4 quality characteristics were investigated. A total of 216 seeds from each F2 generation were chosen randomly and analyzed for HMW-GS composition using sodium dodecyl sulfate-polyacrylamide gel electrophoresis. Agronomic and quality characteristics were not significantly different between reciprocal crosses, indicating no cytoplasmic effect on the characteristics studied. The separation ratio of 2 HMW-GS loci was 9:3:3:1, indicating no linkage between any 2 loci. The novel HMW-GS N was detected in cultivar R145, which did not follow the Mendelian segregation ratio. A Glu-A1a(1) band was not detected in 1 individual from Tian8901xR145. Average grain weight per spike was significantly correlated with quality characteristics and may be a suitable criterion for selecting high protein content in wheat breeding programs.

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“…Besides, different qualitative and quantitative characters including yield and its components are known to be influenced by cytoplasmic genes. Thus there is a strong argument for cytoplasmic diversification of hybrids for improving yield and resistance to biotic and abiotic stresses (Scheifele et al 1970;Rai et al 1996;Delorme et al 1997;Ekiz et al 1998;Bao and Xia 1999;Stamp et al 2000;Moran and Rooney 2003;Tao et al 2004). Also, the availability of various CMS sources in a crop species provides an array of choices to the plant breeders to diversify both genetic and cytoplasmic bases in hybrid cultivars.…”

Section: Introductionmentioning

confidence: 98%

Effect of cytoplasm and cytoplasm-nuclear interaction on combining ability and heterosis for agronomic traits in pearl millet {Pennisetum glaucum (L) Br. R}

et al. 2006

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Cytoplasmic male sterility (CMS) is considered an efficient genetic tool in pearl millet hybrid breeding. Of the several CMS sources available in pearl millet, A 1 is the only CMS widely exploited to produce commercial hybrids in India. To explore the possibility of using alternate CMS sources, we studied the cytoplasmic effects of different CMS sources on agronomic characters in pearl millet. Five CMS (A) lines representing A 1 , A 2 , A 3 , A 4 and A 5 cytoplasms, their respective maintainer (B) lines and eight restorer (R) lines were used to generate 40 A · R and B · R experimental crosses. The experimental material was evaluated at two different locations in India. Analysis of combining ability and heterosis revealed that A 4 and A 5 cytoplasms had desirable effects for earliness. The A 5 CMS was found to be particularly promising, as compared to other CMS sources for improving grain yield. The study also indicated that the cytoplasmic effects on general combining ability (GCA) for various agronomic characters were largely non-significant. However, cytoplasmic effects on specific combining ability and heterosis were found to be modulated by cytoplasmicnuclear interactions and influenced by the environmental conditions. The study also demonstrated the advantage of utilizing diverse malesterile and restorer combinations in maximizing the productivity as well as for genetic and cytoplasmic diversification of hybrids in pearl millet.

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Cytoplasmic effects on quality traits of bread wheat (Triticum aestivum L.)

Cited by 19 publications

References 13 publications

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

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

Characterization of agronomic and quality traits and HSW-G5 compositions from the progenies of common wheat (Triticum aestivum L.) with different protein content

Effect of cytoplasm and cytoplasm-nuclear interaction on combining ability and heterosis for agronomic traits in pearl millet {Pennisetum glaucum (L) Br. R}

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