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Title: A nutritionally-enhanced oil from transgenic Camelina sativa effectively replaces marine fish oil as a source of eicosapentaenoic acid for farmed Atlantic salmon (Salmo salar)      
dateReleased:
12-21-2015
description:
The use of high levels of marine fish oil in aquafeeds is a non-sustainable practice. However, more sustainable oils sources from terrestrial plants do not contain long-chain polyunsaturated fatty acids (LC-PUFA). Consequently, feeds based on conventional vegetable oils reduce n-3 LC-PUFA levels in farmed fish. Therefore, the aquaculture industry desperately requires new, sustainable oil sources that contain high levels of n-3 LC-PUFA in order to supply the increasing demand for fish and seafood while maintaining the high nutritional quality of the farmed product. One approach to the renewable supply of n-3 LC-PUFA is metabolic engineering oilseed crops with the capacity to synthesize these essential fatty acids in seeds. In the present study, the oilseed Camelina sativa has been transformed with algal genes encoding the n-3 biosynthetic pathway and expression restricted to the seeds via seed-specific promoters to produce an oil containing > 20% eicosapentaenoic acid (EPA). This oil was investigated as a replacement for marine fish oil in feeds for post-smolt Atlantic salmon. In addition, this study with EPA-rich oil will contribute to our understanding of the biochemical and molecular mechanisms involved in the control and regulation of docosahexaenoic acid (DHA) production from EPA, and will thus better inform our understanding of this key part of the LC-PUFA biosynthetic pathway.
privacy:
not applicable
aggregation:
instance of dataset
ID:
E-MTAB-2855
refinement:
raw
dateSubmitted:
03-14-2014
keywords:
functional genomics
dateModified:
12-21-2015
creators:
Monica B Betancor
availability:
available
types:
gene expression
name:
Salmo salar
name:
reference design
ID:
A-MEXP-2065
name:
Atlantic salmon_Salar2_Stirling_AgilentCustom_44K (85 col x 532 rows)
accessURL: https://www.ebi.ac.uk/arrayexpress/files/E-MTAB-2855/E-MTAB-2855.raw.1.zip
storedIn:
ArrayExpress
qualifier:
gzip compressed
format:
TXT
accessType:
download
authentication:
none
authorization:
none
accessURL: https://www.ebi.ac.uk/arrayexpress/files/E-MTAB-2855/E-MTAB-2855.processed.1.zip
storedIn:
ArrayExpress
qualifier:
gzip compressed
format:
TXT
accessType:
download
authentication:
none
authorization:
none
abbreviation:
EBI
homePage: http://www.ebi.ac.uk/
ID:
SCR:004727
name:
European Bioinformatics Institute
homePage: https://www.ebi.ac.uk/arrayexpress/
ID:
SCR:002964
name:
ArrayExpress