Fatty acid breakdown in developing embryos of Brassica napus L.

2000 ◽  
Vol 28 (6) ◽  
pp. 753-754 ◽  
Author(s):  
T. Chia ◽  
S. Rawsthorne
Keyword(s):  
Fatty Acid ◽  
Brassica Napus ◽  
Isocitrate Lyase ◽  
Malate Synthase ◽  
Biosynthetic Activity ◽  
Brassica Napus L ◽  
Feeding Experiments ◽  
Storage Products ◽  
Late Stages ◽  
Fatty Acid Catabolism

Developing Brassica napus embryos are primarily concerned with the accumulation of storage products, namely oil, starch and protein. The presence of fatty acid catabolic pathways in the background of this biosynthetic activity was investigated. Enzymes involved in the process of lipid mobilization, such as malate synthase and isocitrate lyase, are detectable towards the late stages of embryo development. [14C]Acetate feeding experiments also reveal that fatty acid catabolism becomes increasingly functional as the embryo matures.

scholarly journals Isocitrate Lyase and Malate Synthase Genes from Brassica napus L. Are Active in Pollen

1994 ◽  
Vol 104 (3) ◽  
pp. 857-864 ◽  
Author(s):  
J. Z. Zhang ◽  
D. L. Laudencia-Chingcuanco ◽  
L. Comai ◽  
M. Li ◽  
J. J. Harada
Keyword(s):  
Brassica Napus ◽  
Isocitrate Lyase ◽  
Malate Synthase ◽  
Brassica Napus L

Coordinate Expression of Transcriptionally Regulated Isocitrate Lyase and Malate Synthase Genes in Brassica napus L.

1989 ◽  
Vol 1 (3) ◽  
pp. 293 ◽  
Author(s):  
Lucio Comai ◽  
Robert A. Dietrich ◽  
Daniel J. Maslyar ◽  
Catherine S. Baden ◽  
John J. Harada
Keyword(s):  
Brassica Napus ◽  
Isocitrate Lyase ◽  
Malate Synthase ◽  
Brassica Napus L ◽  
Coordinate Expression

scholarly journals Coordinate expression of transcriptionally regulated isocitrate lyase and malate synthase genes in Brassica napus L.

1989 ◽  
Vol 1 (3) ◽  
pp. 293-300 ◽  
Author(s):  
L Comai ◽  
R A Dietrich ◽  
D J Maslyar ◽  
C S Baden ◽  
J J Harada
Keyword(s):  
Brassica Napus ◽  
Isocitrate Lyase ◽  
Malate Synthase ◽  
Brassica Napus L ◽  
Coordinate Expression

scholarly journals Unconditional and conditional QTL analyses of seed fatty acid composition in Brassica napus L.

2018 ◽  
Vol 18 (1) ◽  
Author(s):  
Feng Chen ◽  
Wei Zhang ◽  
Kunjiang Yu ◽  
Lijie Sun ◽  
Jianqin Gao ◽  
...  
Keyword(s):  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Brassica Napus ◽  
Acid Composition ◽  
Brassica Napus L ◽  
Conditional Qtl ◽  
Seed Fatty Acid

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.

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.

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