Identification of functional long non-coding RNAs in C. elegans
Abstract Background Functional characterisation of the compact genome of the model organism Caenorhabditis elegans remains incomplete despite its sequencing 20 years ago. The last decade of research has seen a tremendous increase in the number of non-coding RNAs identified in various organisms. Whil...
Main Authors: | , , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
BMC
2019-02-01
|
Series: | BMC Biology |
Subjects: | |
Online Access: | http://link.springer.com/article/10.1186/s12915-019-0635-7 |
id |
doaj-870f16abab21453db570bc370fe64a5d |
---|---|
record_format |
Article |
spelling |
doaj-870f16abab21453db570bc370fe64a5d2020-11-25T02:11:18ZengBMCBMC Biology1741-70072019-02-0117111410.1186/s12915-019-0635-7Identification of functional long non-coding RNAs in C. elegansAlper Akay0David Jordan1Isabela Cunha Navarro2Tomasz Wrzesinski3Chris P. Ponting4Eric A. Miska5Wilfried Haerty6Wellcome CRUK Gurdon Institute, University of CambridgeWellcome CRUK Gurdon Institute, University of CambridgeWellcome CRUK Gurdon Institute, University of CambridgeEarlham Institute, Norwich Research ParkMRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of EdinburghWellcome CRUK Gurdon Institute, University of CambridgeEarlham Institute, Norwich Research ParkAbstract Background Functional characterisation of the compact genome of the model organism Caenorhabditis elegans remains incomplete despite its sequencing 20 years ago. The last decade of research has seen a tremendous increase in the number of non-coding RNAs identified in various organisms. While we have mechanistic understandings of small non-coding RNA pathways, long non-coding RNAs represent a diverse class of active transcripts whose function remains less well characterised. Results By analysing hundreds of published transcriptome datasets, we annotated 3392 potential lncRNAs including 143 multi-exonic loci that showed increased nucleotide conservation and GC content relative to other non-coding regions. Using CRISPR/Cas9 genome editing, we generated deletion mutants for ten long non-coding RNA loci. Using automated microscopy for in-depth phenotyping, we show that six of the long non-coding RNA loci are required for normal development and fertility. Using RNA interference-mediated gene knock-down, we provide evidence that for two of the long non-coding RNA loci, the observed phenotypes are dependent on the corresponding RNA transcripts. Conclusions Our results highlight that a large section of the non-coding regions of the C. elegans genome remains unexplored. Based on our in vivo analysis of a selection of high-confidence lncRNA loci, we expect that a significant proportion of these high-confidence regions is likely to have a biological function at either the genomic or the transcript level.http://link.springer.com/article/10.1186/s12915-019-0635-7C. eleganslncRNAlincRNACRISPRNon-codingLong non-coding RNA |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Alper Akay David Jordan Isabela Cunha Navarro Tomasz Wrzesinski Chris P. Ponting Eric A. Miska Wilfried Haerty |
spellingShingle |
Alper Akay David Jordan Isabela Cunha Navarro Tomasz Wrzesinski Chris P. Ponting Eric A. Miska Wilfried Haerty Identification of functional long non-coding RNAs in C. elegans BMC Biology C. elegans lncRNA lincRNA CRISPR Non-coding Long non-coding RNA |
author_facet |
Alper Akay David Jordan Isabela Cunha Navarro Tomasz Wrzesinski Chris P. Ponting Eric A. Miska Wilfried Haerty |
author_sort |
Alper Akay |
title |
Identification of functional long non-coding RNAs in C. elegans |
title_short |
Identification of functional long non-coding RNAs in C. elegans |
title_full |
Identification of functional long non-coding RNAs in C. elegans |
title_fullStr |
Identification of functional long non-coding RNAs in C. elegans |
title_full_unstemmed |
Identification of functional long non-coding RNAs in C. elegans |
title_sort |
identification of functional long non-coding rnas in c. elegans |
publisher |
BMC |
series |
BMC Biology |
issn |
1741-7007 |
publishDate |
2019-02-01 |
description |
Abstract Background Functional characterisation of the compact genome of the model organism Caenorhabditis elegans remains incomplete despite its sequencing 20 years ago. The last decade of research has seen a tremendous increase in the number of non-coding RNAs identified in various organisms. While we have mechanistic understandings of small non-coding RNA pathways, long non-coding RNAs represent a diverse class of active transcripts whose function remains less well characterised. Results By analysing hundreds of published transcriptome datasets, we annotated 3392 potential lncRNAs including 143 multi-exonic loci that showed increased nucleotide conservation and GC content relative to other non-coding regions. Using CRISPR/Cas9 genome editing, we generated deletion mutants for ten long non-coding RNA loci. Using automated microscopy for in-depth phenotyping, we show that six of the long non-coding RNA loci are required for normal development and fertility. Using RNA interference-mediated gene knock-down, we provide evidence that for two of the long non-coding RNA loci, the observed phenotypes are dependent on the corresponding RNA transcripts. Conclusions Our results highlight that a large section of the non-coding regions of the C. elegans genome remains unexplored. Based on our in vivo analysis of a selection of high-confidence lncRNA loci, we expect that a significant proportion of these high-confidence regions is likely to have a biological function at either the genomic or the transcript level. |
topic |
C. elegans lncRNA lincRNA CRISPR Non-coding Long non-coding RNA |
url |
http://link.springer.com/article/10.1186/s12915-019-0635-7 |
work_keys_str_mv |
AT alperakay identificationoffunctionallongnoncodingrnasincelegans AT davidjordan identificationoffunctionallongnoncodingrnasincelegans AT isabelacunhanavarro identificationoffunctionallongnoncodingrnasincelegans AT tomaszwrzesinski identificationoffunctionallongnoncodingrnasincelegans AT chrispponting identificationoffunctionallongnoncodingrnasincelegans AT ericamiska identificationoffunctionallongnoncodingrnasincelegans AT wilfriedhaerty identificationoffunctionallongnoncodingrnasincelegans |
_version_ |
1724915123543343104 |