Importance of miRNA stability and alternative primary miRNA isoforms in gene regulation during Drosophila development

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 ti...

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Main Authors: Zhou, Li, Lim, Mandy Yu Theng, Kaur, Prameet, Saj, Abil, Bortolamiol-Becet, Diane, Gopal, Vikneswaran, Tolwinski, Nicholas, Tucker-Kellogg, Greg, Okamura, Katsutomo
Other Authors: School of Biological Sciences
Format: Article
Language:English
Published: 2018
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Online Access:https://hdl.handle.net/10356/88981
http://hdl.handle.net/10220/46032
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-889812023-02-28T17:00:53Z Importance of miRNA stability and alternative primary miRNA isoforms in gene regulation during Drosophila development Zhou, Li Lim, Mandy Yu Theng Kaur, Prameet Saj, Abil Bortolamiol-Becet, Diane Gopal, Vikneswaran Tolwinski, Nicholas Tucker-Kellogg, Greg Okamura, Katsutomo School of Biological Sciences DRNTU::Science::Biological sciences Pri-miRNAs Gene Regulation 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. NRF (Natl Research Foundation, S’pore) MOE (Min. of Education, S’pore) Published version 2018-09-19T06:14:13Z 2019-12-06T17:15:11Z 2018-09-19T06:14:13Z 2019-12-06T17:15:11Z 2018 Journal Article 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 2050-084X https://hdl.handle.net/10356/88981 http://hdl.handle.net/10220/46032 10.7554/eLife.38389 en eLife © 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. 31 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Science::Biological sciences
Pri-miRNAs
Gene Regulation
spellingShingle DRNTU::Science::Biological sciences
Pri-miRNAs
Gene Regulation
Zhou, Li
Lim, Mandy Yu Theng
Kaur, Prameet
Saj, Abil
Bortolamiol-Becet, Diane
Gopal, Vikneswaran
Tolwinski, Nicholas
Tucker-Kellogg, Greg
Okamura, Katsutomo
Importance of miRNA stability and alternative primary miRNA isoforms in gene regulation during Drosophila development
description 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.
author2 School of Biological Sciences
author_facet School of Biological Sciences
Zhou, Li
Lim, Mandy Yu Theng
Kaur, Prameet
Saj, Abil
Bortolamiol-Becet, Diane
Gopal, Vikneswaran
Tolwinski, Nicholas
Tucker-Kellogg, Greg
Okamura, Katsutomo
format Article
author Zhou, Li
Lim, Mandy Yu Theng
Kaur, Prameet
Saj, Abil
Bortolamiol-Becet, Diane
Gopal, Vikneswaran
Tolwinski, Nicholas
Tucker-Kellogg, Greg
Okamura, Katsutomo
author_sort Zhou, Li
title Importance of miRNA stability and alternative primary miRNA isoforms in gene regulation during Drosophila development
title_short Importance of miRNA stability and alternative primary miRNA isoforms in gene regulation during Drosophila development
title_full Importance of miRNA stability and alternative primary miRNA isoforms in gene regulation during Drosophila development
title_fullStr Importance of miRNA stability and alternative primary miRNA isoforms in gene regulation during Drosophila development
title_full_unstemmed Importance of miRNA stability and alternative primary miRNA isoforms in gene regulation during Drosophila development
title_sort importance of mirna stability and alternative primary mirna isoforms in gene regulation during drosophila development
publishDate 2018
url https://hdl.handle.net/10356/88981
http://hdl.handle.net/10220/46032
_version_ 1759857958320078848