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.  

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.

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 Genetic variability and regression analysis for yield and quality traits in Brassica napus

2020 ◽  
pp. 8-14
Author(s):  
Nabeel Khan ◽  
, Raziuddin ◽  
Nazir Ahmad ◽  
Fazli Ahad
Keyword(s):  
Genetic Variability ◽  
Erucic Acid ◽  
Seed Yield ◽  
Acid Content ◽  
Erucic Acid Content ◽  
Glucosinolate Content ◽  
Yield And Quality ◽  
Negative Effect ◽  
Independent Variable ◽  
Pod Length

An experiment was conducted to estimate the genetic variability and regression analysis for yield and quality traits in a set of eight brassica genotypes in a randomized complete block design with three replications at The University of Agriculture Peshawar, during 2011-12 cropping season. Significant genetic variability was recorded among genotypes for plant height, pods main receme-1, pod length, seed yield plant-1, 1000-seed weight, seeds pod-1, oil content, protein content, glucosinolate content, erucic acid content, oleic acid content and linolenic acid content except for primary branch plant-1 and pods plant-1 which showed non-significant differences. Genotypes, AUP-401, AUP-402, AUP-404 and AUP-407 showed potential performance for glucosinolate content (55.1 µmol g-1), seed yield plant-1 (23.93 g), pods plant-1 (268.83), protein contents (21.1 %), erucic acid contents (42.7 %) and oil contents (53.3 %). Seed yield plant-1 was taken as a dependent variable to study the effects of many morphological yield traits on it. Branches plant-1, pods main raceme-1, pods plant-1, and seed pod-1 showed a positive effect on seed yield plant-1, while 1000-seed weight, pod length, and plant height showed a negative effect on seed yield plant-1. Seed yield plant-1 as an independent variable showed a negative effect on oil content. Protein content as an independent variable showed a positive effect on erucic acid content, while oil contents as independent variables show a negative effect on protein contents, respectively. The developed germplasm could be used in the upcoming brassica breeding programs to release high yielding, disease resistance, stress tolerance, and insect resistance varieties, which will eventually upsurge the productivity and decrease the gap between demand and domestic production of the brassica crop.

scholarly journals A RAPID AND SIMPLE METHOD OF SCREENING RAPESEED AND MUSTARD SEED FOR ERUCIC ACID CONTENT

1977 ◽  
Vol 57 (1) ◽  
pp. 133-142 ◽  
Author(s):  
D. I. McGREGOR
Keyword(s):  
Erucic Acid ◽  
Acid Content ◽  
Alcoholic Solution ◽  
Erucic Acid Content ◽  
Mustard Seed ◽  
Brassica Napus L ◽  
Simple Method ◽  
High Erucic Acid ◽  
The Stability ◽  
Time Required

A rapid and simple method of screening rapeseed (Brassica napus L. and B. campestris L.) and mustard (B. juncea (L.) Coss., and B. hirta Moench) seed for erucic acid content was developed using the solubility of the oil in absolute ethanol or a mixture of methanol and n-propanol 1.7:2.0 v/v. The time required for a warm alcoholic solution of the oil to turn opaque on cooling was related to the erucic acid content. The stability of the reagent, sensitivity, simplicity and speed of the method indicates that it is suitable for identification of low and high erucic acid seed in commerce.

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