Microarray analysis of gene expression of Atlantic cod from different Baltic Sea regions: Adaptation to salinity

摘要

The Atlantic cod (Gadus morhua L.) is one of the most important species in the Baltic Sea with high ecological and economical value. To explore the differences in adaptation to salinity between Baltic cod from different regions, western (Kiel Bight) and eastern (Gdansk Bay) samples were analyzed through oligonucleotide microarray. The results showed that a total of 1043 genes were differently expressed between localities. Overall, our results suggested different adaptation patterns to low salinity in the Baltic Sea between cod subpopulations and demonstrated importance of genes involved in cell cycle, lipid metabolism and immune system in this process.