Identification and characterization of microRNAs and their target genes from Nile tilapia (Oreochromis niloticus)
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Yong Huang
,
Xiu Ying Ma
Abstract
MicroRNAs (miRNAs) are a class of small single-stranded, endogenous 21–22 nt non-coding RNAs that regulate their target mRNA levels by causing either inactivation or degradation of the mRNAs. In recent years, miRNA genes have been identified from mammals, insects, worms, plants, and viruses. In this research, bioinformatics approaches were used to predict potential miRNAs and their targets in Nile tilapia from the expressed sequence tag (EST) and genomic survey sequence (GSS) database, respectively, based on the conservation of miRNAs in many animal species. A total of 19 potential miRNAs were detected following a range of strict filtering criteria. To test the validity of the bioinformatics method, seven predicted Nile tilapia miRNA genes were selected for further biological validation, and their mature miRNA transcripts were successfully detected by stem–loop RT-PCR experiments. Using these potential miRNAs, we found 56 potential targets in this species. Most of the target mRNAs appear to be involved in development, metabolism, signal transduction, transcription regulation and stress responses. Overall, our findings will provide an important foundation for further research on miRNAs function in the Nile tilapia.
Funding source: National Natural Science Foundation of China
Award Identifier / Grant number: U1304324
Funding statement: This research was supported by the Joint Funds for Fostering Talents of National Natural Science Foundation of China and Henan province (U1304324) as well as by the Doctoral Science Foundation (09001578) and the Natural Science Innovation and Development Foundation (2013ZCX014) of Henan University of Science and Technology.
Acknowledgments:
This research was supported by the Joint Funds for Fostering Talents of National Natural Science Foundation of China and Henan province (U1304324) as well as by the Doctoral Science Foundation (09001578) and the Natural Science Innovation and Development Foundation (2013ZCX014) of Henan University of Science and Technology.
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Supplemental Material:
The online version of this article (DOI: 10.1515/znc-2015-0104) offers supplementary material, available to authorized users.
©2016 Walter de Gruyter GmbH, Berlin/Boston
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Articles in the same Issue
- Frontmatter
- In vitro neuroprotective potential of the monoterpenes α-pinene and 1,8-cineole against H2O2-induced oxidative stress in PC12 cells
- Neem tree (Azadirachta indica) extract specifically suppresses the growth of tumors in H22-bearing Kunming mice
- Orofacial antinociceptive effect of the ethanolic extract of Annona vepretorum Mart. (Annonaceae)
- Identification and characterization of microRNAs and their target genes from Nile tilapia (Oreochromis niloticus)
- Chemotherapeutic effect of Berberis integerrima hydroalcoholic extract on colon cancer development in the 1,2-dimethyl hydrazine rat model
- New flavonoid C–O–C dimers and other chemical constituents from Garcinia brevipedicellata stem heartwood
- GDP-D-mannose pyrophosphorylase from Pogonatherum paniceum enhances salinity and drought tolerance of transgenic tobacco
- Hypoglycemic activity of Gleditsia caspica extract and its saponin-containing fraction in streptozotocin-induced diabetic rats
- Antinociceptive activity of Tibouchina pereirae, an endemic plant from the Brazilian semiarid region
- Heteroplasmy and atrazine resistance in Chenopodium album and Senecio vulgaris
- Extremely high boron tolerance in Puccinellia distans (Jacq.) Parl. related to root boron exclusion and a well-regulated antioxidant system
