Long non-coding RNAs as the regulatory hubs in rice response to salt stress

Abstract Salinity seriously constrains growth and fertility of rice worldwide. Long non-coding RNAs (lncRNAs) play crucial roles in plant abiotic stress response. However, salt responsive lncRNAs are poorly understood in rice. Herein, salt responsive lncRNAs (DE-lncRNAs) were identified in FL478 (sa...

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Main Authors: Raheleh Mirdar Mansuri, Amir-Hossein Azizi, Amir-Hossein Sadri, Zahra-Sadat Shobbar
Format: Article
Language:English
Published: Nature Portfolio 2022-12-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-022-26133-x
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author Raheleh Mirdar Mansuri
Amir-Hossein Azizi
Amir-Hossein Sadri
Zahra-Sadat Shobbar
author_facet Raheleh Mirdar Mansuri
Amir-Hossein Azizi
Amir-Hossein Sadri
Zahra-Sadat Shobbar
author_sort Raheleh Mirdar Mansuri
collection DOAJ
description Abstract Salinity seriously constrains growth and fertility of rice worldwide. Long non-coding RNAs (lncRNAs) play crucial roles in plant abiotic stress response. However, salt responsive lncRNAs are poorly understood in rice. Herein, salt responsive lncRNAs (DE-lncRNAs) were identified in FL478 (salt tolerant) compared to its susceptible parent (IR29) using RNA-seq in root tissues at seedling stage. In FL478 and IR29, 8724 and 9235 transcripts with length of > 200 bp were nominated as potential lncRNAs, respectively. Rigorous filtering left four (in FL478) and nine (in IR29) DE-lncRNAs with only 2 DE-lncRNAs in common. ATAC-seq data showed that the genomic regions of all four lncRNAs in FL478 and 6/9 in IR29 are significantly accessible for transcription. Weighted correlation network analysis (WGCNA) revealed that lncRNA.2-FL was highly correlated with 173 mRNAs as trans-targets and a gene encoding pentatricopeptide repeat (PPR) protein was predicted as cis-target of lncRNA.2-FL. In silico mutagenesis analysis proposed the same transcription factor binding sites (TFBSs) in vicinity of the trans- and cis-regulatory target genes of lncRNA.2-FL, which significantly affect their transcription start site (TSS). This study provides new insights into involvement of the DE-lncRNAs in rice response to salt stress. Among them, lncRNA.2-FL may play a significant regulatory role in the salt stress tolerance of FL478.
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spelling doaj.art-10dbcb8a6bdb4b1a860df1b58d9dd4602022-12-22T04:42:00ZengNature PortfolioScientific Reports2045-23222022-12-0112111410.1038/s41598-022-26133-xLong non-coding RNAs as the regulatory hubs in rice response to salt stressRaheleh Mirdar Mansuri0Amir-Hossein Azizi1Amir-Hossein Sadri2Zahra-Sadat Shobbar3Department of Systems Biology, Agricultural Research, Education and Extension Organization (AREEO), Agricultural Biotechnology Research Institute of Iran (ABRII)Department of Systems Biology, Agricultural Research, Education and Extension Organization (AREEO), Agricultural Biotechnology Research Institute of Iran (ABRII)Department of Systems Biology, Agricultural Research, Education and Extension Organization (AREEO), Agricultural Biotechnology Research Institute of Iran (ABRII)Department of Systems Biology, Agricultural Research, Education and Extension Organization (AREEO), Agricultural Biotechnology Research Institute of Iran (ABRII)Abstract Salinity seriously constrains growth and fertility of rice worldwide. Long non-coding RNAs (lncRNAs) play crucial roles in plant abiotic stress response. However, salt responsive lncRNAs are poorly understood in rice. Herein, salt responsive lncRNAs (DE-lncRNAs) were identified in FL478 (salt tolerant) compared to its susceptible parent (IR29) using RNA-seq in root tissues at seedling stage. In FL478 and IR29, 8724 and 9235 transcripts with length of > 200 bp were nominated as potential lncRNAs, respectively. Rigorous filtering left four (in FL478) and nine (in IR29) DE-lncRNAs with only 2 DE-lncRNAs in common. ATAC-seq data showed that the genomic regions of all four lncRNAs in FL478 and 6/9 in IR29 are significantly accessible for transcription. Weighted correlation network analysis (WGCNA) revealed that lncRNA.2-FL was highly correlated with 173 mRNAs as trans-targets and a gene encoding pentatricopeptide repeat (PPR) protein was predicted as cis-target of lncRNA.2-FL. In silico mutagenesis analysis proposed the same transcription factor binding sites (TFBSs) in vicinity of the trans- and cis-regulatory target genes of lncRNA.2-FL, which significantly affect their transcription start site (TSS). This study provides new insights into involvement of the DE-lncRNAs in rice response to salt stress. Among them, lncRNA.2-FL may play a significant regulatory role in the salt stress tolerance of FL478.https://doi.org/10.1038/s41598-022-26133-x
spellingShingle Raheleh Mirdar Mansuri
Amir-Hossein Azizi
Amir-Hossein Sadri
Zahra-Sadat Shobbar
Long non-coding RNAs as the regulatory hubs in rice response to salt stress
Scientific Reports
title Long non-coding RNAs as the regulatory hubs in rice response to salt stress
title_full Long non-coding RNAs as the regulatory hubs in rice response to salt stress
title_fullStr Long non-coding RNAs as the regulatory hubs in rice response to salt stress
title_full_unstemmed Long non-coding RNAs as the regulatory hubs in rice response to salt stress
title_short Long non-coding RNAs as the regulatory hubs in rice response to salt stress
title_sort long non coding rnas as the regulatory hubs in rice response to salt stress
url https://doi.org/10.1038/s41598-022-26133-x
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AT amirhosseinazizi longnoncodingrnasastheregulatoryhubsinriceresponsetosaltstress
AT amirhosseinsadri longnoncodingrnasastheregulatoryhubsinriceresponsetosaltstress
AT zahrasadatshobbar longnoncodingrnasastheregulatoryhubsinriceresponsetosaltstress