Project description:Minipigs are animal models widely used in biomedical studies due to their physiological and anatomical similarities to humans. However, a comprehensive resource for the Korean minipig (Sus scrofa) transcriptome remains unavailable. In this study, we constructed a de novo transcriptome of the Korean minipig using RNA-seq data obtained from ten tissues across ten samples. The final assembly comprised 57,085 coding transcripts with an average length of 3,075 nucleotides and an N50 of 4,258 nucleotides. In total, 65.4% of the transcripts were annotated, and biological functions were assigned. Transcript expression profiling and principal component analysis showed that samples clustered by tissue type, reflecting transcriptomic features shared across tissues. Comparative analysis demonstrated that the novel transcriptome assembly had contiguity and completeness comparable to those available for pig and minipig breeds. Overall, this study provides a comprehensive transcriptomic resource for the Korean minipig, facilitating further functional analyses.
Project description:Minipigs are animal models widely used in biomedical studies due to their physiological and anatomical similarities to humans. However, a comprehensive resource for the Korean minipig (Sus scrofa) transcriptome remains unavailable. In this study, we constructed a de novo transcriptome of the Korean minipig using RNA-seq data obtained from ten tissues across ten samples. The final assembly comprised 57,085 coding transcripts with an average length of 3,075 nucleotides and an N50 of 4,258 nucleotides. In total, 65.4% of the transcripts were annotated, and biological functions were assigned. Transcript expression profiling and principal component analysis showed that samples clustered by tissue type, reflecting transcriptomic features shared across tissues. Comparative analysis demonstrated that the novel transcriptome assembly had contiguity and completeness comparable to those available for pig and minipig breeds. Overall, this study provides a comprehensive transcriptomic resource for the Korean minipig, facilitating further functional analyses.
Project description:Long non-coding RNAs (lncRNAs) play important roles in diverse biological processes. However, the landscape of lncRNAs is largely unclear in Sus scrofa. Here we performed stranded RNA-seq on total RNA libraries from over 100 samples of Sus scrofa tissues. We identified 10,813 lncRNAs in Sus scrofa, of which 9,075 are novel. 57% of these lncRNAs were conserved in both human and mouse. These conserved lncRNAs tend to be more tissue-specific than pig-specific lncRNAs, and enriched in reproducible organs (i.e. testis and ovary). We characterized a group of lncRNAs potentially involved in the skeletal muscle development. One such lncRNA, a homolog of maternally expressed gene 3 (MEG3), was specifically expressed in the skeletal muscle at early developmental stage. And its expression pattern is conserved in pig and mouse. By over-expressing and knocking down MEG3 in mouse myoblast cell lines, we demonstrated its novel function as a myoblast proliferation suppressor.