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Abstract
Atlantic cod (Gadus morhua) is an essential species in North Atlantic fisheries and increasingly relevant as an aquaculture species. However, potential conflicts with both coastal industry and petroleum industry expanding into northern waters make it important to understand how effluents (produced water, pharmaceuticals, food contaminants, and feed contaminants) affect the growth, reproduction, and health of this species in order to maintain a sustainable cod population and a healthy human food source, and to discover biomarkers for environmental monitoring and risk assessment. The ongoing genome sequencing effort of Atlantic cod has opened the possibility for a systems biology approach to elucidate molecular mechanisms of toxicity. Our study aims to be a first step toward such a systems toxicology understanding of genomic responses to environmental insults. A toxicogenomic approach was initiated that is combining data generated from proteomics analyses and transcriptomics analyses, and the concurrent development of searchable expressed sequence tags (EST) databases and genomic databases. This interdisciplinary study may also open new possibilities of gene annotation and pathway analyses.
Acknowledgments
The studies reported have been supported by various grants from the Norwegian Research Council (including 164423/S40, 141213/720, 400098, and 192441/I30) and Total E&P NORGE AS. We thank our collaborators in iCod Pål Olsvik, Pål Puntervoll, Ketil Hylland, Stig W. Omholt, Ivar Rønnestad, Peter Roepstorff, and Christer Hogstrand. We thank Anne Beth Madsen (Department of Molecular Biology, University of Bergen) for technical assistance.