期刊
ONCOTARGET
卷 8, 期 57, 页码 97165-97177出版社
IMPACT JOURNALS LLC
DOI: 10.18632/oncotarget.21835
关键词
sheep; circRNAs; muscle; expression profiles; RNA-seq
资金
- National Natural Science Foundation of China (NSFC) [31660644, 31460037, 31660718, 31360615]
- Recruitment Program of Global Young Experts (1000Plan)
- [2015ZRKXJQ01]
- [2016BC001]
Circular RNAs (circRNAs), a type of non-coding RNA with circular structure, were generated by back splicing and widely expressed in animals and plants. Recent studies have shown that circRNAs extensively participate in cell proliferation, cell differentiation, cell autophagy and other biological processes. However, the role and expression of circRNAs in the development and growth of muscle have not been studied in sheep. In our study, we first used RNA-seq to study the circRNAs in prenatal and postnatal longissimus dorsi muscle of sheep. A total of 6113 circRNAs were detected from the RNA-seq data. Several circRNAs were identified using reverse transcription PCR, DNA sequencing and RNase R digestion experiments. The expression levels of several circRNAs in prenatal and postnatal muscle were confirmed by Real-Time RT-PCR. The gene ontology (GO) and KEGG enrichment analysis of the host gene of the circRNAs showed that these circRNAs were mainly involved in the growth and development of muscle related signaling pathways. These circRNAs might sponge microRNAs (miRNAs) in predicted circRNA-miRNA-mRNA networks. The circRNAs expression profiles in muscle provided an important reference for the study of circRNAs in sheep.
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