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Title: Importance of miRNA stability and alternative primary miRNA isoforms in gene regulation during Drosophila development
Authors: Zhou, Li
Lim, Mandy Yu Theng
Kaur, Prameet
Saj, Abil
Bortolamiol-Becet, Diane
Gopal, Vikneswaran
Tolwinski, Nicholas
Tucker-Kellogg, Greg
Okamura, Katsutomo
Keywords: DRNTU::Science::Biological sciences
Gene Regulation
Issue Date: 2018
Source: Zhou, L., Lim, M. Y. T., Kaur, P., Saj, A., Bortolamiol-Becet, D., Gopal, V., . . . Okamura, K. (2018). Importance of miRNA stability and alternative primary miRNA isoforms in gene regulation during Drosophila development. eLife, 7, e38389-. doi:10.7554/eLife.38389
Series/Report no.: eLife
Abstract: Mature microRNAs (miRNAs) are processed from primary transcripts (pri-miRNAs), and their expression is controlled at transcriptional and post-transcriptional levels. However, how regulation at multiple levels achieves precise control remains elusive. Using published and new datasets, we profile a time course of mature and pri-miRNAs in Drosophila embryos and reveal the dynamics of miRNA production and degradation as well as dynamic changes in pri-miRNA isoform selection. We found that 5’ nucleotides influence stability of mature miRNAs. Furthermore, distinct half-lives of miRNAs from the mir-309 cluster shape their temporal expression patterns, and the importance of rapid degradation of the miRNAs in gene regulation is detected as distinct evolutionary signatures at the target sites in the transcriptome. Finally, we show that rapid degradation of miR-3/–309 may be important for regulation of the planar cell polarity pathway component Vang. Altogether, the results suggest that complex mechanisms regulate miRNA expression to support normal development.
ISSN: 2050-084X
Rights: © 2018 Zhou et al. This article is distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use and redistribution provided that the original author and source are credited.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SBS Journal Articles

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