GSE107369
Characterization of lncRNAs involved in cold acclimation of zebrafish ZF4 cells
Long non-coding RNAs (lncRNAs) are increasingly regarded as a key role in regulating diverse biological processes in various tissues and species. So far, no data is available on screening and functional prediction of lncRNAs in cold acclimation in fishes. Here we compared expression profiles of lncRNAs in zebrafish embryonic fibroblast cells (ZF4) cultured at 28°C as control with that of cold acclimated cells cultured at 18°C for 30 days by high-throughput sequencing. There are 8363 novel lncRNAs were identified. Including known and novel lncRNAs, there are 347 lncRNAs up-regulated and 342 lncRNAs down-regulated in cold acclimated cells, compared with that of control cells at 28°C. Among differentially expressed lncRNAs, 74 and 61 were found only in control cells or in cold-acclimated cells, respectively. The Gene Ontology (GO) and Kyoto Encyclopaedia of Genes and Genomes (KEGG) enrichment analyses of genes adjacent to differentially expressed lncRNAs showed that enriched genes were involved in electron transport, cell adhesion, oxidation-reduction process, and so on. We predicted target genes of differentially expressed lncRNAs by looking for interactions between lncRNAs and mRNA, and constructed a complex interaction network. In summary, our genome-wide systematic identification and function prediction of lncRNAs in zebrafish cells, lays the foundation for future studies to elucidate crucial roles of lncRNAs in cold acclimation in fishes. Overall design: ZF4 cells were cultured at 28 °C as control and at 18 °C for 30 days, seperately. Each condition has three biological replica.