scholarly journals Genetic analysis of oleic acid content in the oils of maize mutants amylose extender

2020 ◽  
Vol 27 ◽  
pp. 151-155
Author(s):  
D. S. Tymchuk ◽  
H. S. Potapenko ◽  
N. F. Tymchuk ◽  
I. I. Torianyk
Keyword(s):  
Zea Mays ◽  
Fatty Acid Composition ◽  
Oleic Acid ◽  
Genetic Analysis ◽  
Significant Contribution ◽  
Zea Mays L ◽  
Mutant Gene ◽  
Common Type ◽  
Oleic Acid Content ◽  
Additive Effects

Aim. Genetic analysis of oleate content in the carriers of maize mutation ae. Methods. In two-year experiments 10 unrelared on origin inbreds – carriers of ae mutation and a series of hybrids from their diallel and top-cross crossings were analysed. The analysis of the fatty acid composition of oil was carried out using a modified gas-chromatographic Peysker method. Results. It was found that the carriers of maize ae mutation are characterized by a higher oleate content compared to the maize of common type, however the oleate content in the oils of  ae mutants was lower than that of the mutants su1 and su2. The different inbreds – carriers of the ae mutation differed among themselves by the the effects of the combining abilities for the oleate content in oil. The inheritance of oleate content by hybrids based on the ae mutation was similar to the type of incomplete dominance with a significant contribution of additive effects to the variance. Conclusions. In the carriers of ae maize mutation, the spatial linkage in the fifth chromosome of ae mutant gene with the oleate – encoding locus, the effect of which is modified by the polygenic complex, is likely. Keywords: Zea mays L., mutation ae, oleic acid, genetic analysis.

scholarly journals Genetic analysis of oleic acid content in the oils of maize sugary-2 mutants

2019 ◽  
Vol 24 ◽  
pp. 172-176 ◽  
Author(s):  
D. S. Tymchuk ◽  
G. S. Potapenko ◽  
N. F. Tymchuk ◽  
V. V. Muzhylko
Keyword(s):  
Zea Mays ◽  
Fatty Acid Composition ◽  
Oleic Acid ◽  
Fatty Acid ◽  
Genetic Analysis ◽  
Zea Mays L ◽  
Oleic Acid Content ◽  
Additive Effects ◽  
Maize Chromosome ◽  
Quantitative Nature

Aim. Genetic analysis of oleate content in the carriers of maize mutation su2. Methods. Experiments were performed on a series of unrelated inbreeds – carriers of mutation su2 which were hybridized by the diallel and top – cross crossings. The analysis of the fatty acid composition of oil were carried out using a modified gas-chromatographic Peyskare method. Results. It was found, that su2 mutants were notable as having the increased content of oleate compared to the maize of usual type and this trait has a quantitative nature. The inbreeds – carriers of su2 mutation were significantly differed in the the effects of combining abilities for the oleate content. The inheritance of oleate was carried out by the type of incomplete dominance with the prevailing contribution of additive effects to the variance. Conclusions. In the sixth maize chromosome it is very likely that there is a spatial linkage of the su2 and oleate- encoding locus, the effect of which can be modified by the polygenic complex. Keywords: Zea mays L., mutation su2, oleic acid, genetic analysis.

scholarly journals Genetic analysis of oleic acid сontent in the oil of maize on the basis of mutation Sugary-1

2018 ◽  
Vol 23 ◽  
pp. 137-142 ◽  
Author(s):  
D. S. Tymchuk ◽  
G. S. Potapenko ◽  
N. F. Tymchuk ◽  
V. V. Myzhylko
Keyword(s):  
Zea Mays ◽  
Oleic Acid ◽  
Genetic Analysis ◽  
Zea Mays L ◽  
Additive Effects ◽  
Incomplete Dominance ◽  
Spatial Coupling

Aim. Genetic analysis of oleate content in the carriers of maize  mutation su1. Methods. Experiments were conducted on a series of inbreds – carriers of mutation su1, as well as hybrids derived from their diallel and top cross crossings. Results. Inbreds – carriers of mutation su1 were notable as having the increased content of oleate, which was inherited by the type of incomplete dominance with the prevailing contribution of additive effects to the variance. Conclusions. Increasing the content of the oleic acid glycerides in the carriers of mutation su1 caused by the spatial coupling of the locus su1 with the oleate – encoding locus, the effect of which can be modified by the polygenic complex. Keywords: Zea mays L., mutation su1, oleic acid, genetic analysis.

Genetic analysis of resistance to sorghum downy mildew and Rajasthan downy mildew in maize (Zea mays L.)

2004 ◽  
Vol 89 (2-3) ◽  
pp. 379-387 ◽  
Author(s):  
Sudha K Nair ◽  
B.M Prasanna ◽  
R.S Rathore ◽  
T.A.S Setty ◽  
R Kumar ◽  
...  
Keyword(s):  
Zea Mays ◽  
Genetic Analysis ◽  
Downy Mildew ◽  
Zea Mays L ◽  
Sorghum Downy Mildew

Genetic Analysis of Quantitative Traits in Synthetic Population 316P02 of Maize (Zea mays L.)

2001 ◽  
Vol 29 (1-2) ◽  
pp. 77-84
Author(s):  
Nenad Vasić ◽  
Djordje Jocković ◽  
Mile Ivanović ◽  
Luiz Peternelli ◽  
Milisav Stojaković ◽  
...  
Keyword(s):  
Zea Mays ◽  
Genetic Analysis ◽  
Quantitative Traits ◽  
Zea Mays L ◽  
Synthetic Population

scholarly journals Genetic analysis of maturity and flowering characteristics in maize (Zea mays L.)

2012 ◽  
Vol 2 (8) ◽  
pp. 621-626 ◽  
Author(s):  
Hassan Sher ◽  
Muhammad Iqbal ◽  
Kiramat Khan ◽  
Muhammad yasir ◽  
Hameed-ur-Rahman
Keyword(s):  
Zea Mays ◽  
Genetic Analysis ◽  
Zea Mays L

Variability of Seed Fatty Acid Composition to Growing Degree-Days in High Oleic Acid Sunflower Genotypes

Helia ◽  
2015 ◽  
Vol 38 (62) ◽  
Author(s):  
Claudio Ferfuia ◽  
Maurizio Turi ◽  
Gian Paolo Vannozzi
Keyword(s):  
Fatty Acid Composition ◽  
Oleic Acid ◽  
Fatty Acid ◽  
Acid Composition ◽  
Inbred Line ◽  
Acid Content ◽  
Growing Degree Days ◽  
Environment Interaction ◽  
Oleic Acid Content ◽  
Degree Days

AbstractHigh temperature enhances the oleic acid content in the oil of normal cultivars but conflicting results are reported on temperature effects on oleic acid content in HO cultivars: either no effect or an increase in oleic acid content with temperature. To investigate the effects of temperature on HO genotypes under natural field conditions, a three-year field trial was conducted using two sowing dates and three HO genotypes (two inbred lines and one hybrid). To compare our results with previous works, growing degree-days (GDD) were computed (base temperature=6°C). GDD accumulated during the “flowering – 25 days after flowering” period influenced fatty acid composition of seed. Oleic and linoleic acid contents were affected by accumulated GDD in two HO genotypes (one inbred line and the hybrid). There was an increase of about 3% in oleic acid content as response to more high GDD accumulated. Their content was not modified by GDD in the other inbred line. There was a genotype×environment interaction that we suppose depending on modifier genes. These genetic factors affected oleic acid content. This indicated the importance of breeding targeted to select hybrids with a stable oleic acid content and higher than 90%. Saturated fatty acids (palmitic and stearic) were also influenced by temperature, and there was genetic variability among genotypes.

scholarly journals Overexpression of Soybean Transcription Factors GmDof4 and GmDof11 Significantly Increase the Oleic Acid Content in Seed of Brassica napus L.

Agronomy ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 222 ◽  
Author(s):  
Qinfu Sun ◽  
Jueyi Xue ◽  
Li Lin ◽  
Dongxiao Liu ◽  
Jian Wu ◽  
...  
Keyword(s):  
Fatty Acid Composition ◽  
Transcription Factors ◽  
Oleic Acid ◽  
Fatty Acid ◽  
Brassica Napus ◽  
Acid Content ◽  
Fatty Acid Biosynthesis ◽  
Oleic Acid Content ◽  
Acid Biosynthesis ◽  
Brassica Napus L

Rapeseed (Brassica napus L.) with substantial lipid and oleic acid content is of great interest to rapeseed breeders. Overexpression of Glycine max transcription factors Dof4 and Dof11 increased lipid accumulation in Arabidopsis and microalgae, in addition to modifying the quantity of certain fatty acid components. Here, we report the involvement of GmDof4 and GmDof11 in regulating fatty acid composition in rapeseeds. Overexpression of GmDof4 and GmDof11 in rapeseed increased oleic acid content and reduced linoleic acid and linolenic acid. Both qPCR and the yeast one-hybrid assay indicated that GmDof4 activated the expression of FAB2 by directly binding to the cis-DNA element on its promoters, while GmDof11 directly inhibited the expression of FAD2. Thus, GmDof4 and GmDof11 might modify the oleic acid content in rapeseed by directly regulating the genes that are associated with fatty acid biosynthesis.

scholarly journals Genetic analysis of tropical quality protein maize (Zea mays L.) germplasm

Euphytica ◽  
2017 ◽  
Vol 213 (11) ◽  
Author(s):  
Susan G. Njeri ◽  
Dan Makumbi ◽  
Marilyn L. Warburton ◽  
Alpha Diallo ◽  
MacDonald B. Jumbo ◽  
...  
Keyword(s):  
Zea Mays ◽  
Genetic Analysis ◽  
Zea Mays L ◽  
Quality Protein Maize
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