Project description:This is the first use of cDNA microarrays to study the influence of GH transgenesis on liver gene expression in a non-mammalian vertebrate. Three groups of salmon were examined: transgenic on full ration (T), transgenic on restricted ration (R), and control nontransgenic (C). Daily weight gains in T were approximately 8-fold higher than in C, and 4-fold higher than in R. Differential gene expression in T, R, and C samples was determined using ~ 16,000 gene microarrays. In the GRASP microarray studies, only those features (cDNA spots on the microarrays) behaving similarly (e.g. greater than 2-fold up-regulated in T relative to C) in all slides of the study will be reported to minimize false positives occurring due to dye bias and technical variability. Coho salmon transcripts responding reproducibly to GH transgenesis with and without feed rationing will be reported. Many of the microarray-identified hepatic transcripts responsive to GH transgenesis with and without rationing are involved in iron homeostasis, metabolism, cellular proliferation, and innate immunity. Keywords: Impact of growth hormone transgenesis with and without ration restriction on global hepatic gene expression
Project description:The influence of GH transgenesis on liver gene expression in coho salmon was examined. Gene expression in livers of transgenic salmon on a restricted ration (R) was compared to that in livers of nontransgenic control salmon (C). Keywords: Transcript profile
Project description:Differential Gene Expression in Liver, Gill and Olfactory Tissues of Coho Salmon (Oncorhynchus kisutch) after Acclimation to Salinity.
Project description:Transcriptional impact of organophosphate pesticides chlorpyrifos and malathion and their mixture on the juvenile coho salmon olfactory system.
Project description:The aim of this sequencing experiment was to make available liver tissue expression for selected fish species, northern pike (Esox lucius, Eluc), coho salmon (Oncorhynchus kisutch, Okis) and Arctic charr (Salvelinus alpinus, Salp), for comparative expression studies between the species. Samples in replicate of four were sacrificed according to protocols at each of the facilities from where samples were obtained. RNA was extracted from samples and Illumina TruSeq Stranded mRNA libraries were built. Sequencing was performed in two passes on an Illumina HiSeq2500, paired-end 125bp reads. Processed count tables per species as raw counts, FPKM, or TPM, were generated from read alignment to the NCBI genomes of the respective species using STAR and gene level counting using RSEM and NCBI gene annotation.
