SELECTION OF RAPE PLANTS (BRASSICA NAPUS) WITH SEED OIL PRACTICALLY FREE FROM ERUCIC ACID

1964 ◽  
Vol 44 (4) ◽  
pp. 359-364 ◽  
Author(s):  
B. R. Stefansson ◽  
F. W. Hougen
Keyword(s):  
Brassica Napus ◽  
Erucic Acid ◽  
Acid Content ◽  
Major Constituent ◽  
Erucic Acid Content ◽  
Seed Oils ◽  
Brassica Napus L ◽  
Characteristic Component ◽  
Different Sources ◽  
Selection Of

Erucic acid is the major and characteristic component of common rapeseed oils. Seed oils from a total of 125 strains from three species of Brassica (B. napus L., B. campestris L., and B. juncea (L.) Coss.) grown near Winnipeg in 1959 were analysed for erucic acid content. The range of variability for this component was similar to the range of previously reported values. Analyses of seed oils from individual plants revealed a greater range of variability and repeated selection resulted in isolation of rape strains (Brassica napus L.) from two different sources with seed oils containing only traces of erucic acid. Oleic has replaced erucic acid as the major constituent of these oils. Analysis of F2 data indicated that inheritance of erucic acid content is conditioned by two independent gene loci and that the dosage effect of the genes is additive. Pollen source exerts a direct effect on the composition of the oil (xenia effect).

scholarly journals Inheritance and variation of erucic acid content in a transgenic rapeseed (Brassica napus L.) doubled haploid population

2008 ◽  
Vol 23 (1) ◽  
pp. 125-138 ◽  
Author(s):  
Ujjal K. Nath ◽  
Gayatri Goswami ◽  
Rosemarie Clemens ◽  
Heiko C. Becker ◽  
Christian Möllers
Keyword(s):  
Brassica Napus ◽  
Erucic Acid ◽  
Doubled Haploid ◽  
Acid Content ◽  
Erucic Acid Content ◽  
Doubled Haploid Population ◽  
Brassica Napus L ◽  
Haploid Population ◽  
Transgenic Rapeseed

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.

scholarly journals Development of Self-incompatible Lines with Improved Seed Quality in Winter Oilseed Rape (Brassica napus L.) for Hybrid Breeding

2011 ◽  
Vol 41 (No. 3) ◽  
pp. 105-111 ◽  
Author(s):  
R. Koprna ◽  
V. Kučera ◽  
O. Kolovrat ◽  
M. Vyvadilová ◽  
M. Klíma
Keyword(s):  
Erucic Acid ◽  
Doubled Haploid ◽  
Acid Content ◽  
Seed Quality ◽  
Quality Parameters ◽  
Hplc Method ◽  
Hybrid Breeding ◽  
Erucic Acid Content ◽  
Glucosinolate Content ◽  
Brassica Napus L

Doubled haploid (DH) self-incompatible (SI) regenerants with improved seed quality were derived after two improvement crossing cycles with different “00” quality donors. The original genetic resource of recessive sporophytic SI was characterised by a high glucosinolate (GSL) and erucic acid content. SI regenerants of satisfactory seed quality parameters were obtained from the second cycle of crossing. Total number of derived SI plants was 87, i.e. 38.2% out of 228 obtained fertile doubled haploid regenerants developed in 2004. Nine plants out of the analysed 45 SI DH regenerants had the erucic acid content lower than 2%. Five out of these nine plants, which were analysed by HPLC method, had the glucosinolate content lower than the limit 18 µmol/g at 9% seed moisture. The method based on the spraying of inflorescences with 5% NaCl to enable reproduction of SI lines was verified.  

A STUDY OF ERUCIC ACID ALLELES IN DIGENOMIC RAPESEED (Brassica napus L.)

1981 ◽  
Vol 61 (2) ◽  
pp. 198-202 ◽  
Author(s):  
I. J. ANAND ◽  
R. K. DOWNEY
Keyword(s):  
Fatty Acid ◽  
Brassica Napus ◽  
Erucic Acid ◽  
Direct Evidence ◽  
Brassica Campestris ◽  
Fatty Acid Analysis ◽  
Interspecific Crosses ◽  
Seed Oils ◽  
Brassica Napus L ◽  
Brassica Crops

Five genes have been identified in Brassica crops which control the level of synthesis of the fatty acid, erucic, in their seed oils. These genes, designated e, Ea, Eb, Ec, and Ed, act in an additive manner and result in erucic acid levels of < 1, 10, 15, 30 and 3.5, respectively. No direct evidence has yet been obtained to show that these genes are true alleles. Selected plants of the amphidiploid species Brassica napus L. with erucic acid contents of 7–8% and a genotype of EdEdee were reciprocally crossed with selected plants with erucic acid levels of [Formula: see text] and a genotype of Eaeee. Fatty acid analysis of F1 and backcross seed demonstrated that the genes Ed and Ea in the parents used were in the same genome and were truly allelic. Interspecific crosses were made between these B. napus parents and selected zero erucic acid plants of Brassica campestris L. (genotype "ee") to determine whether the genes Ed and Ea resided in the oleracea or the campestris genome of B. napus parents. Fatty acid analysis of F1 and backcross seed from these interspecific crosses suggest that the alleles of Ed and Ea are located on chromosomes of the oleracea genome.

The two genes homologous to Arabidopsis FAE1 co-segregate with the two loci governing erucic acid content in Brassica napus

1998 ◽  
Vol 96 (6-7) ◽  
pp. 852-858 ◽  
Author(s):  
M. Fourmann ◽  
P. Barret ◽  
M. Renard ◽  
G. Pelletier ◽  
R. Delourme ◽  
...  
Keyword(s):  
Brassica Napus ◽  
Erucic Acid ◽  
Acid Content ◽  
Erucic Acid Content
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