Identification and Characterization of MicroRNAs in Skin of Chinese Giant Salamander (Andrias davidianus) by the Deep Sequencing Approach
- Authors: Huang Y.1, Gong W.B.2
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Affiliations:
- College of Animal Science and Technology
- Key Laboratory of Tropical and Subtropical Fishery Resource Application and Cultivation, Ministry of Agriculture, Pearl River Fisheries Research Institute
- Issue: Vol 83, No 6 (2018)
- Pages: 766-777
- Section: Article
- URL: https://journals.rcsi.science/0006-2979/article/view/151680
- DOI: https://doi.org/10.1134/S0006297918060147
- ID: 151680
Cite item
Abstract
MicroRNAs (miRNA) play a pivotal role in regulating a broad range of biological processes, acting by cleaving mRNAs or by translational repression. However, the miRNAs from skin of Andrias davidianus have not been reported. In this study, a small-RNA cDNA library was constructed and sequenced from skin of A. davidianus. A total of 513 conserved miRNAs belonging to 174 families were identified. The remaining 108 miRNAs we identified were novel and likely to be skin tissue-specific but were expressed at low levels. The presence of randomly selected 15 miRNAs identified and their expression in eight different tissues from A. davidianus were validated by stem-loop qRT-PCR. For better understanding the functions of miRNAs, 129,791 predicated target genes were analyzed by GO and their pathways illustrated by KEGG pathway analyses. The results show that these identified miRNAs from A. davidianus skin are involved in a broad range of physiological functions including metabolism, growth, development, and immune responses. This study exhaustively identifies miRNAs and their target genes, which will ultimately pave the way for understanding their role in skin of A. davidianus and other amphibians. Further studies are necessary to better understand miRNA-mediated gene regulation.
Keywords
About the authors
Yong Huang
College of Animal Science and Technology
Author for correspondence.
Email: huangyong1979111@163.com
China, Luoyang, 471023
Wang Bao Gong
Key Laboratory of Tropical and Subtropical Fishery Resource Application and Cultivation, Ministry of Agriculture, Pearl River Fisheries Research Institute
Email: huangyong1979111@163.com
China, Guangzhou
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