Differential expression profiles of long non-coding RNAs during the mouse pronucleus stage under normal gravity and simulated microgravity

We report the application of single-molecule-based sequencing technology for high-throughput profiling of lncRNA in mouse cells. By obtaining over 47 million bases of sequence, we identified 3,307 lncRNAs based on single-cell RNA sequencing (RNA-Seq) data, discovered 52 lncRNAs that were significantly differentially expressed, and then selected 10 lncRNAs for qRT-PCR validation. Furthermore, we found that 12 lncRNAs with the target gene Tubb4b or Actn4 might be related to the expression of microtubule and microfilament proteins and the binding relationship was confirmed in a dual-luciferase reporter assay. Finally, Gene Ontology (GO) analysis revealed that the target genes of the differentially expressed lncRNAs participated in cellular processes related to protein transport, binding, catalytic activity, membrane-bounded organelles, protein complexes and the cortical cytoskeleton.