Development of a low glucosinolate, high erucic acid rapeseed breeding program

1975 ◽  
Vol 52 (9) ◽  
pp. 363-365 ◽  
Author(s):  
W. Calhoun ◽  
J. M. Crane ◽  
D. L. Stamp
Keyword(s):  
Erucic Acid ◽  
Breeding Program ◽  
High Erucic Acid ◽  
High Erucic Acid Rapeseed

Acyl-CoA elongase, a key enzyme in the development of high-erucic acid rapeseed?

2005 ◽  
Vol 107 (4) ◽  
pp. 263-267 ◽  
Author(s):  
Juliette Puyaubert ◽  
Christel Garcia ◽  
Sylvette Chevalier ◽  
Ren� Lessire
Keyword(s):  
Erucic Acid ◽  
High Erucic Acid ◽  
High Erucic Acid Rapeseed ◽  
Key Enzyme

Enzymatic synthesis of trierucin from high-erucic acid rapeseed oil

1993 ◽  
Vol 70 (10) ◽  
pp. 961-964 ◽  
Author(s):  
Michael Trani ◽  
Robert Lortie ◽  
Françoise Ergan
Keyword(s):  
Erucic Acid ◽  
Enzymatic Synthesis ◽  
Rapeseed Oil ◽  
High Erucic Acid ◽  
High Erucic Acid Rapeseed

PERFORMANCE AND HISTOLOGICAL CHANGES IN TISSUES OF PIGS FED DIETS CONTAINING HIGH OR LOW ERUCIC ACID RAPESEED OILS OR SOYBEAN OIL

1975 ◽  
Vol 55 (1) ◽  
pp. 77-85 ◽  
Author(s):  
F. X. AHERNE ◽  
J. P. BOWLAND ◽  
H. VOGTMANN ◽  
R. T. HARDIN ◽  
R. G. CHRISTIAN
Keyword(s):  
Soybean Oil ◽  
Erucic Acid ◽  
Rapeseed Oil ◽  
Caloric Intake ◽  
Histological Changes ◽  
High Erucic Acid ◽  
High Erucic Acid Rapeseed ◽  
Ad Libitum ◽  
Pig Performance ◽  
Low Erucic Acid

Three experiments were conducted to compare high (20.6%) or low (4.0%) erucic acid rapeseed oils with soybean oil when the oils were fed at a level of 15% of the diet for pigs from 25 to 90 kg liveweight. The low erucic acid rapeseed oil originated from Brassica campestris cv. Span. A fourth diet containing no supplemental oil served as a control. In one experiment, 48 crossbred pigs were fed ad libitum in groups of three pigs replicated four times. In a second experiment, 48 pigs were individually fed at a level of 80% of the daily caloric intake of the pigs in the first experiment. In a third experiment, 16 pigs in four groups were allowed continuous free-choice access to the four diets. Serial slaughter and digestibility data were obtained. The incorporation of high or low erucic acid rapeseed oil in the diets did not reduce pig performance when such diets were fed either ad libitum or at a restricted level. When given a choice of feed, pigs selected less of the high erucic acid rapeseed oil diet. When not given a choice of feed, pigs consumed as much of a high erucic acid rapeseed oil diet as they did of the other diets. Digestibility coefficients for energy, nitrogen and lipids were not significantly different for any of the three oil-containing diets. Histological examination of the heart, liver and spleen revealed no marked differences due to feeding any of the oil-based diets.

Enzymic activities and gene expression of enzymes of the acyl-CoA elongase during rapeseed development

2000 ◽  
Vol 28 (6) ◽  
pp. 645-647 ◽  
Author(s):  
J. Puyaubert ◽  
B. Garbay ◽  
W. Dieryck ◽  
P. Costaglioli ◽  
T. Roscoe ◽  
...  
Keyword(s):  
Gene Expression ◽  
Erucic Acid ◽  
Seed Development ◽  
Mrna Levels ◽  
High Erucic Acid ◽  
Expression Levels ◽  
High Erucic Acid Rapeseed ◽  
Developmental Profiles ◽  
Low Erucic Acid ◽  
Maximal Expression

Enzymic activities and gene expression of oleoylCoA elongase were studied during seed development using two different rapeseed cultivars, high-erucic-acid rapeseed (HEAR) and low-erucic-acid rapeseed (LEAR). The overall elongase activities were maximal in HEAR between the fourth and eighth weeks after pollination (WAP) and absent in LEAR. The 3-ketoacyl-CoA synthase (condensing enzyme, CE) mRNA levels and the developmental profiles in the two cultivars were different since maximal expression levels were detected in HEAR and LEAR at WAP 4 and WAP 6, respectively. Anti-CE antibodies revealed two proteins of 60 and 67 kDa in both cultivars and an additional reacting protein of 57 kDa in HEAR.

POTENTIAL OF HIGH ERUCIC ACID RAPESEED (BRASSICA NAPUS, VAR. DWARF ESSEX) OIL AS A HYDRAULIC FLUID

1997 ◽  
Vol 13 (4) ◽  
pp. 443-449
Author(s):  
V. V. Harish ◽  
J. C. Thompson ◽  
C. L. Peterson
Keyword(s):  
Brassica Napus ◽  
Erucic Acid ◽  
Hydraulic Fluid ◽  
High Erucic Acid ◽  
High Erucic Acid Rapeseed

scholarly journals Low and High Erucic Acid Rapeseed Oils in Rations for Laying Hens

1973 ◽  
Vol 52 (3) ◽  
pp. 955-962 ◽  
Author(s):  
H. Vogtmann ◽  
D.R. Clandinin ◽  
A.R. Robblee
Keyword(s):  
Erucic Acid ◽  
Laying Hens ◽  
High Erucic Acid ◽  
High Erucic Acid Rapeseed

Assessment of seed quality performance and heterosis for seed quality traits in hybrid high erucic acid rapeseed (HEAR)

2011 ◽  
Vol 91 (5) ◽  
pp. 837-846 ◽  
Author(s):  
R. D. Cuthbert ◽  
G. Crow ◽  
P. B. E. McVetty
Keyword(s):  
Erucic Acid ◽  
Seed Oil ◽  
Seed Quality ◽  
Agronomic Traits ◽  
Quality Traits ◽  
Quality Performance ◽  
High Erucic Acid ◽  
High Erucic Acid Rapeseed ◽  
Oil Concentration ◽  
Seed Quality Traits

Cuthbert, R. D., Crow, G. and McVetty, P. B. E. 2011. Assessment of seed quality performance and heterosis for seed quality traits in hybrid high erucic acid rapeseed (HEAR). Can. J. Plant Sci. 91: 837–846. Hybrids are becoming the dominant cultivar type in Brassica napus L. to utilize the well-documented heterosis for seed yield in canola/rapeseed. While there are numerous reports of heterosis for agronomic traits in B. napus hybrids, there are few reports of heterosis for seed quality traits in this species. The objectives of this study were to determine if high parent or commercial heterosis for any seed quality traits occurs in high erucic acid rapeseed (HEAR) hybrids. Seed quality performance of 45 F1 B. napus HEAR hybrids, derived from crosses of 12 geographically and genetically distinct (based on known pedigrees) HEAR cultivars/lines, was assessed in the current study using seven HEAR cultivars/lines developed by the University of Manitoba (UM) and five proprietary European (EU) HEAR cultivars/lines. Replicated field trials to assess seed oil, protein, sum of oil and protein, glucosinolate, and erucic acid concentrations were conducted over six environments in Manitoba during 2004 and 2005. High parent heterosis and commercial heterosis for seed oil concentration up to 9% and up to 14%, respectively, was observed with hybrids displaying seed oil concentrations as high as 533 g kg−1. Low parent heterosis for protein and glucosinolate concentrations was also observed. Erucic acid concentration displayed commercial heterosis. Many hybrids displayed near zero percent heterosis for any seed quality traits; however, overall seed quality was maintained or increased even in these hybrids. The results of this study indicate that development of HEAR hybrids can be an effective way to improve seed quality components, especially oil concentration, in this crop.

Assessment of agronomic performance and heterosis for agronomic traits in hybrid high erucic acid rapeseed (HEAR)

2009 ◽  
Vol 89 (2) ◽  
pp. 227-237 ◽  
Author(s):  
R. D. Cuthbert ◽  
G. Crow ◽  
P. B. E. McVetty
Keyword(s):  
Brassica Napus ◽  
Erucic Acid ◽  
Seed Yield ◽  
Agronomic Traits ◽  
Brassica Napus L ◽  
High Erucic Acid ◽  
High Erucic Acid Rapeseed ◽  
Days To Maturity ◽  
The University ◽  
Seed Yields

Twelve genetically diverse and geographically distinct high erucic acid rapeseed (HEAR) Brassica napus L. cultivars/lines were selected and crossed by hand emasculation in a topcross design to produce 45 F1 hybrid combinations. Seven of the twelve parents were HEAR cultivars/lines developed by the University of Manitoba (UM) and the remaining five parents were proprietary European (EU) HEAR cultivars/lines. Adequate seed was produced to evaluate the hybrids and parents in replicated yield trials in six environments in Manitoba during 2004 and 2005. Vigor, days to first flower, days to maturity, lodging, plant height, and seed yield were assessed. The hybrids were generally more vigorous, taller and more lodging resistant than their parents with similar days to first flower and days to maturity as their earlier parents. The best hybrids in this study displayed high parent heterosis for seed yield of up to 143% and commercial heterosis for seed yield of up to 99%. These hybrids were from the most genetically diverse UM × EU crosses. HEAR hybrids appear very promising approach to increase seed yields in this crop. Key words: Brassica napus L., HEAR, heterosis, hybrids, genetic diversity

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