Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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Transcription profiling by array of Atlantic salmon liver from fish exhibiting high and low flesh n-3LC-PUFA levels at harvest


ABSTRACT: N-3 long chain polyunsaturated fatty acids (n-3LC-PUFA) are essential components of vertebrate membrane lipids and are now at critically low levels in modern Western diets. The main human dietary source for n-3LC-PUFA is fish and seafood, and over 50% of global fish production is currently supplied by aquaculture. However, increasing pressure to include vegetable oils, which are devoid of n-3LC-PUFA, in aquaculture feeds reduces their content in farmed fish flesh. The aim of this investigation was to infer mechanisms determining flesh n-3LC-PUFA content in Atlantic salmon. The TRAITS / SGP Atlantic salmon 17k feature cDNA microarray (ArrayExpress accession: A-MEXP-1790) was used to compare hepatic mRNA expression in 8 families, reared under common conditions, which exhibited contrasting high and low flesh n-3LC-PUFA levels at harvest. The microarray interrogations incorporated a common pooled reference design, comprising a total of 16 hybridisations (8 families x 2 - dye swap). Each family sample comprised RNA pooled from six sibs.

ORGANISM(S): Salmo salar

SUBMITTER: John Taggart 

PROVIDER: E-TABM-955 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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