Mapping loci controlling the concentrations of erucic and linolenic acids in seed oil of Brassica napus L.

1996 ◽  
Vol 93 (1-2) ◽  
pp. 282-286 ◽  
Author(s):  
C. E. Thormann ◽  
J. Romero ◽  
J. Mantet ◽  
T. C. Osborn
Keyword(s):  
Brassica Napus ◽  
Seed Oil ◽  
Brassica Napus L

scholarly journals Unravelling the Complex Interplay of Transcription Factors Orchestrating Seed Oil Content in Brassica napus L.

2021 ◽  
Vol 22 (3) ◽  
pp. 1033
Author(s):  
Abirami Rajavel ◽  
Selina Klees ◽  
Johanna-Sophie Schlüter ◽  
Hendrik Bertram ◽  
Kun Lu ◽  
...  
Keyword(s):  
Gene Expression ◽  
Transcription Factors ◽  
Brassica Napus ◽  
Oil Content ◽  
Seed Oil ◽  
Seed Oil Content ◽  
Complex Interplay ◽  
Brassica Napus L ◽  
Data Set ◽  
Developmental Switches

Transcription factors (TFs) and their complex interplay are essential for directing specific genetic programs, such as responses to environmental stresses, tissue development, or cell differentiation by regulating gene expression. Knowledge regarding TF–TF cooperations could be promising in gaining insight into the developmental switches between the cultivars of Brassica napus L., namely Zhongshuang11 (ZS11), a double-low accession with high-oil- content, and Zhongyou821 (ZY821), a double-high accession with low-oil-content. In this regard, we analysed a time series RNA-seq data set of seed tissue from both of the cultivars by mainly focusing on the monotonically expressed genes (MEGs). The consideration of the MEGs enables the capturing of multi-stage progression processes that are orchestrated by the cooperative TFs and, thus, facilitates the understanding of the molecular mechanisms determining seed oil content. Our findings show that TF families, such as NAC, MYB, DOF, GATA, and HD-ZIP are highly involved in the seed developmental process. Particularly, their preferential partner choices as well as changes in their gene expression profiles seem to be strongly associated with the differentiation of the oil content between the two cultivars. These findings are essential in enhancing our understanding of the genetic programs in both cultivars and developing novel hypotheses for further experimental studies.

Association of a RAPD marker with linolenic acid concentration in the seed oil of rapeseed (Brassica napus L.)

Genome ◽  
1995 ◽  
Vol 38 (2) ◽  
pp. 414-416 ◽  
Author(s):  
P. K. Tanhuanpää ◽  
J. P. Vilkki ◽  
H. J. Vilkki
Keyword(s):  
Brassica Napus ◽  
Linolenic Acid ◽  
Acid Concentration ◽  
Seed Oil ◽  
Rapd Marker ◽  
Brassica Napus L ◽  
Breeding Programs ◽  
Selection For ◽  
Rflp Rapd ◽  
Low Linolenic

The F2 progeny (64 individuals) from the cross between oilseed rape (Brassica napus L.) cultivar Topas and R4 (a low linolenic mutation line) was analyzed with 8 RFLPs and 34 RAPDs to discover a genetic tag for gene(s) affecting linolenic acid concentration. According to variance analysis (ANOVA), one RAPD marker (25a) was significantly associated with linolenic acid content; the linolenic acid concentration in the seeds of F2 individuals showing the marker (includes both homo- and hetero-zygotes) was 7.43 ± 1.35% and in those lacking the marker was 5.70 ± 1.52%. Marker 25a may be used to facilitate selection for fatty acid composition in future breeding programs of oilseed rape.Key words: Brassica napus, RFLP, RAPD, linolenic acid.

scholarly journals Effect of Genotype × Environment Interaction for Seed Traits in Winter Oilseed Rape (Brassica napus L.)

Agriculture ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 607
Author(s):  
Alina Liersch ◽  
Jan Bocianowski ◽  
Kamila Nowosad ◽  
Katarzyna Mikołajczyk ◽  
Stanisław Spasibionek ◽  
...  
Keyword(s):  
Brassica Napus ◽  
Oilseed Rape ◽  
Seed Oil ◽  
F1 Hybrids ◽  
Environment Interaction ◽  
Oilseed Crop ◽  
Seed Traits ◽  
Winter Oilseed Rape ◽  
Brassica Napus L ◽  
Breeding Lines

Brassica napus (L.), winter oilseed rape (WOSR) or canola, is one of the most important oilseed crop species of the moderate climate zone. Improving the seed quality and yield makes the main target in breeding programs worldwide. In this study, we examined the genotype-by-environment (G×E) interaction with respect to six seed traits among 25 WOSR genotypes. The plant material included the registered canola cultivars, our newly developed mutant breeding lines and the Ogura F1 hybrids and their parental components, in addition to our domestic breeding lines including two semi-resynthesized (semi-RS) lines. The 25 genotypes were examined in field trials at two locations, in three growing seasons. Seed oil and protein content, total glucosinolates (GLS) content in seed meal and C18 unsaturated fatty acid (oleic, linoleic and linolenic) composition in seed oil were examined. The additive main effects and multiplicative interaction (AMMI) analyses revealed significant effects of both, genotype (G) and environment (E) as well as the G×E interaction regarding the analyzed seed traits. In our study, two Ogura F1 hybrids, a CMS line and a new high oleic mutant breeding line revealed high stability and good average values for most of the analyzed seed traits, thus making a valuable source of starting materials for further improvement.

Venus high erucic acid, low glucosinolate summer rape

1996 ◽  
Vol 76 (2) ◽  
pp. 341-342 ◽  
Author(s):  
P. B. E. McVetty ◽  
R. Scarth ◽  
S. R. Rimmer ◽  
C. G. J. van den Berg
Keyword(s):  
Brassica Napus ◽  
Erucic Acid ◽  
Key Words ◽  
Seed Oil ◽  
Western Canada ◽  
Brassica Napus L ◽  
High Erucic Acid ◽  
Rapeseed Cultivar ◽  
Cultivar Description ◽  
Canola Quality

Venus summer rape (Brassica napus L.) is a high-erucic acid rapeseed cultivar with canola-quality meal. Venus has an average 5% yield advantage over Hero rapeseed with seed oil and protein contents comparable to Hero. Venus is adapted to the southern B. napus growing regions of western Canada. Key words: Rape (summer), high erucic acid-low glucosinolate, cultivar description

Effects of applied sulfur on glucosinolate and oil concentrations in the seeds of rape (Brassica napus L.) and turnip rape (Brassica rapa L. var. silvestris (Lam.) Briggs)

1989 ◽  
Vol 40 (3) ◽  
pp. 617 ◽  
Author(s):  
RJ Mailer
Keyword(s):  
Brassica Napus ◽  
Brassica Rapa ◽  
Seed Oil ◽  
New South ◽  
Field Trials ◽  
Seed Meal ◽  
Limiting Factor ◽  
Brassica Napus L ◽  
Turnip Rape ◽  
Glucosinolate Concentration

The effect of sulfur availability on glucosinolate concentration in seed meal of glasshouse grown Brassica nupus cv. Wesbrook and Brassica rapa cv. Runyip was studied. In addition, field trials were evaluated to determine the degree of variability of glucosinolate concentrations in the seed and of sulfur in the plants of rapeseed grown at a number of sites throughout New South Wales.Glucosinolate concentration in seeds grown in the glasshouse increased (P < 0.01) in both cultivars with increasing sulfur application, ranging from an average of 5 8mol at 4 8g g-1 to 55 8mol at 100 8g g-1 sulfur. Bunyip containcd significantly higher concentrations (Pt0-01) than Wesbrook. Increased rates of sulfur application resulted in increased (P < 0.01) seed oil concentrations (from 28.7 to 37.6%), yield (3.1-27.1 g) and 1000-grain weights (2.1-2.9 g). Field trials showed site (P < 0.01) and cultivar (P<0.01) variation in glucosinolate levels. However, sulfur did not appear to be an independently limiting factor in field-grown plants.

HYHEAR 1 hybrid Roundup Ready™ high erucic acid, low glucosinolate summer rape

2014 ◽  
Vol 94 (2) ◽  
pp. 453-455 ◽  
Author(s):  
P. B. E. McVetty ◽  
J. L. Cuthbert ◽  
V. Marwede ◽  
W. Paulmann ◽  
O. Sass ◽  
...  
Keyword(s):  
Brassica Napus ◽  
Erucic Acid ◽  
Seed Oil ◽  
Field Trials ◽  
Erucic Acid Content ◽  
Western Canada ◽  
Brassica Napus L ◽  
Roundup Ready ◽  
High Erucic Acid ◽  
Meal Protein

McVetty, P. B. E., Cuthbert, J. L., Marwede, V., Paulmann, W., Sass, O., Duncan, R. W., Fernando, W. G. D., Li, G. and Zelmer, C. D. 2014. HYHEAR 1 hybrid Roundup Ready™ high erucic acid, low glucosinolate summer rape. Can. J. Plant Sci. 94: 453–455. HYHEAR 1 summer rape (Brassica napus L.) is the world's first hybrid Roundup Ready™ high erucic acid, low glucosinolate cultivar. On average, HYHEAR 1 yielded 33% more seed, 23 g kg−1 more seed oil but 17 g kg −1 less meal protein than MillenniUM 03 high erucic acid, low glucosinolate, open pollinated population summer rape. HYHEAR 1 has an erucic acid content of 52.2% in isolated field trials of HEAR lines and is adapted to the southern B. napus growing regions of western Canada.

EFFECT OF SEED POD LOCATION ON THE FATTY ACID COMPOSITION OF SEED OIL FROM RAPESEED (BRASSICA NAPUS AND B. CAMPESTRIS)

1970 ◽  
Vol 50 (2) ◽  
pp. 151-154 ◽  
Author(s):  
M. BECHYNE ◽  
Z. P. KONDRA
Keyword(s):  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Brassica Napus ◽  
Acid Composition ◽  
Seed Oil ◽  
Position Effect ◽  
Controlled Environment ◽  
Brassica Napus L ◽  
Seed Position ◽  
Field Plots

Oils from seeds produced at three locations on plants of Nugget (Brassica napus L.) and Echo (B. campestris L.) rapeseed, grown in field plots and a controlled environment room, were analyzed for their fatty acid composition. The fatty acid composition of oil from field-produced seed was not affected by the location of the seed on the plant. However, in the controlled environment room the effect of seed position was significant. Nugget seed from the lowest raceme contained seed oil with significantly higher linolenic acid and lower erucic acid than seed produced on the main raceme. Echo seed from the lowest pods on the main raceme contained significantly less palmitic acid than seeds from the lowest pods on the lowest raceme. Nugget seed grown in the controlled environment room had a significantly higher content of palmitic, stearic and oleic acids, and significantly lower levels of linoleic, linolenic and erucic acids than Nugget field-produced seed. The fatty acid composition of Echo seed oil produced under the two environments did not differ significantly. Single pod samples should be restricted to the same position on each plant to reduce the position effect on fatty acid composition. This and previous studies indicate that comparisons of fatty acid values for plants grown at different locations should be avoided.

scholarly journals CORRELATIONS INVOLVING OIL AND FATTY ACIDS IN RAPESEED

1969 ◽  
Vol 49 (5) ◽  
pp. 573-580 ◽  
Author(s):  
B. R. Stefansson ◽  
A. K. Storgaard
Keyword(s):  
Fatty Acids ◽  
Brassica Napus ◽  
Oil Content ◽  
Seed Oil ◽  
Correlation Coefficients ◽  
Dry Weight ◽  
Strong Tendency ◽  
Brassica Napus L ◽  
Positive Correlation ◽  
Total Fatty Acids

Four populations of rapeseed plants (Brassica napus L.) were used in an investigation of the correlation of seed oil and its component fatty acids; the constituents of the oil were palmitic, oleic, linoleic, linolenic, and eicosenoic acids. Oil content was calculated as percent of the dry weight of the seed and fatty acids from the oil as percent of total fatty acids (TFA) and as percent of seed. Correlation coefficients were calculated for all pairs of fatty acids and for oil and each fatty acid.When fatty acids were expressed as percent of TFA, there was a strong tendency for negative correlations between oleic and other fatty acids and a tendency for positive correlation between linoleic and linolenic. These results are essentially similar to published correlations. When fatty acids were expressed as percent of seed, there were no consistently significant correlations for any pair of fatty acids in the four populations of rapeseed plants.When fatty acids were expressed as percent of TFA and oil as percent of seed, there were several consistently high negative correlations between oil and fatty acids. When both fatty acids and oil were expressed as percent of seed, most of the correlations between oil and fatty acids were positive, as might be expected since fatty acids are a part of the oil.

THE INHERITANCE OF ERUCIC ACID CONTENT IN RAPESEED (BRASSICA NAPUS)

1964 ◽  
Vol 44 (1) ◽  
pp. 104-111 ◽  
Author(s):  
B. L. Harvey ◽  
R. K. Downey
Keyword(s):  
Fatty Acids ◽  
Brassica Napus ◽  
Genetic Analysis ◽  
Erucic Acid ◽  
Acid Content ◽  
Seed Oil ◽  
Brassica Campestris ◽  
Erucic Acid Content ◽  
Brassica Napus L ◽  
Backcross Populations

Genetic analysis of F2, F3, and backcross populations supported the hypothesis that erucic acid content in seed oil of plants of Brassica napus L. is governed by two genes displaying no dominance and acting in an additive manner. Environment appeared to influence erucic acid content, especially in genotypes capable of producing a large amount of this acid. Methods for the breeding of plants of Brassica campestris L. with zero erucic acid are outlined and it is suggested that similar methods could be used to breed for or against other fatty acids.

Sign in / Sign up

Export Citation Format

Share Document