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  • Title: Full-length transcriptome sequencing from multiple immune-related tissues of Paralichthys olivaceus.
    Author: Xiu Y, Li Y, Liu X, Li C.
    Journal: Fish Shellfish Immunol; 2020 Nov; 106():930-937. PubMed ID: 32927055.
    Abstract:
    Olive flounder (Paralichthys olivaceus) is an important economical flatfish in Japan, Korea and China, but its production has been greatly threatened by various of diseases. Although RNA-seq has provided valuable insights into the host-pathogen interaction, there are still some disadvantages, such as a short sequencing length, the incomplete or inaccurate splicing. Therefore, we generated a full-length transcriptome using mixed immune-related tissues of P. olivaceus with PacBio Sequel platform. In this study, 379,671 full-length non-chimeric (flnc) reads were generated with average length of 2482 bp, which is longer than any previously reported in P. olivaceus. A total of 66,420 isoforms of transcript were identified, 46,850 of which were novel isoforms of known genes accounting for 70.54%. In addition, 7720 novel genes, 12,540 alternative splicing (AS) events, 9296 alternative polyadenylation (APA) events, 2298 transcription factors (TFs), 10,270 lncRNAs and 5400 fusion transcripts were identified. Furthermore, functional annotation showed that most of the full-length transcripts were enriched in immune-related signaling pathways. Otherwise, the mRNA-miRNA interacting networks confirmed that 28.5% of mRNAs were predicted to be targeted by more than one miRNA. These results facilitate the understanding of gene structure, post-transcriptional regulatory networks, and subsequently proteomic diversity. In conclusion, our study provides the full-length transcriptome from multiple immune-related tissues of P. olivaceus, which is valuable for exploring its immune responses.
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