Salmo salar
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA1028935 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR26405414_1.fastq.gz | Fastqsanger.gz | |||
| SRR26405414_2.fastq.gz | Fastqsanger.gz | |||
| SRR26405415_1.fastq.gz | Fastqsanger.gz | |||
| SRR26405415_2.fastq.gz | Fastqsanger.gz | |||
| SRR26405416_1.fastq.gz | Fastqsanger.gz |
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Project description:Atlantic salmon (Salmo salar L.) is an environmentally and economically important organism and its gene content is reasonably well characterized. From a transcriptional standpoint, it is important to characterize the normal changes in gene expression over the course of early development, from fertilization through to the parr stage.S. salar samples were taken at 17 time points from 2 to 89 days post fertilization. Total RNA was extracted and cRNA was synthesized and hybridized to a new 44K oligo salmonid microarray platform. Quantified results were subjected to preliminary data analysis and submitted to NCBI’s Gene Expression Omnibus. Throughout the entire period of development, several thousand genes were found to be differentially regulated. This work represents the trancriptional characterization of a very large geneset that will be extremely valuable in further examination of the transcriptional changes in Atlantic salmon during the first few months of development. The expression profiles can help to annotate salmon genes in addition to being used as references against any number of experimental variables that developing salmonids might be subjected to.
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Project description:To study the short term (48 h) hepatic transcriptional changes and identify potential modes of action, Atlantic salmon (Salmo salar) were exposed to 15 mGy, 70 mGy and 280 mGy external gamma radiation. A combination of high density (60 k) custom oligonucleotide salmonid microarray and quantitative real-time reverse transcription polymerase chain reaction (qPCR) was employed to perform gene expression analyses. Differentially expressed genes (DEGs) were determined using one-way analysis of variance (ANOVA) and Tukey posthoc tests. Functional enrichment analysis based on Gene Ontology (GO) was performed to link DEGs to their biological functions. The Salmo salar DEGs were further mapped to mammlian orthologs. By using ortholog DEGs, gene networks were built based on well-curated mammlian protein-protein interactions and pathways analyses were performed to link DEGs to specific toxicological/biological functions. The results obtained from microarray analysis were further verified using qPCR.
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Project description:To study the short term (48 h) hepatic transcriptional changes and identify potential modes of action, Atlantic salmon (Salmo salar) were exposed to 0.25 mg/L, 0.5 mg/L and 1.0 mg/L depleted uranium. A combination of high density (60 k) custom oligonucleotide salmonid miacroarray and quantitative real-time reverse transcription polymerase chain reaction (qPCR) was employed to perform gene expression analyses. Differentially expressed genes (DEGs) were determined using one-way analysis of variance (ANOVA) and Tukey posthoc tests. Functional enrichment analysis based on Gene Ontology (GO) was performed to link DEGs to their biological functions. The Salmo salar DEGs were further mapped to mammlian orthologs. By using ortholog DEGs, gene networks were built based on well-curated mammlian protein-protein interactions and pathways analyses were performed to link DEGs to specific toxicological/biological functions. The results obtained from microarray analysis were further verified using qPCR. Juvenile Atlantic salmon were exposed to waterborne depleted uranium for 48 h. Liver were samples and used for gene expression analysis.
2014-06-26 | E-GEOD-58824 | biostudies-arrayexpress
Project description:Atlantic salmon (Salmo salar L.) is an environmentally and economically important organism and its gene content is reasonably well characterized. From a transcriptional standpoint, it is important to characterize the normal changes in gene expression over the course of early development, from fertilization through to the parr stage.S. salar samples were taken at 17 time points from 2 to 89 days post fertilization. Total RNA was extracted and cRNA was synthesized and hybridized to a new 44K oligo salmonid microarray platform. Quantified results were subjected to preliminary data analysis and submitted to NCBI’s Gene Expression Omnibus. Throughout the entire period of development, several thousand genes were found to be differentially regulated. This work represents the trancriptional characterization of a very large geneset that will be extremely valuable in further examination of the transcriptional changes in Atlantic salmon during the first few months of development. The expression profiles can help to annotate salmon genes in addition to being used as references against any number of experimental variables that developing salmonids might be subjected to. 17 time points (2 - 89 dpf) with three samples for each time point Equimolar amounts from all three individuals in each time point were pooled. Then reference pool was created by including equal quantities cRNA from each time point, except for the first time point which had less material included.
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