Transcriptome analysis and functional identification of GmMYB46 in soybean seedlings under salt stress

Salinity is one of the major abiotic stress that limits crop growth and productivity. We investigated the transcriptomes of salt-treated soybean seedlings versus a control using RNA-seq to better understand the molecular mechanisms of the soybean (Glycine max L.) response to salt stress. Transcripto...

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Autores principales: Xun Liu, Xinxia Yang, Bin Zhang
Formato: article
Lenguaje:EN
Publicado: PeerJ Inc. 2021
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Acceso en línea:https://doaj.org/article/f116736375fc4e5fb52502adfe1b35ce
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spelling oai:doaj.org-article:f116736375fc4e5fb52502adfe1b35ce2021-11-13T15:05:28ZTranscriptome analysis and functional identification of GmMYB46 in soybean seedlings under salt stress10.7717/peerj.124922167-8359https://doaj.org/article/f116736375fc4e5fb52502adfe1b35ce2021-11-01T00:00:00Zhttps://peerj.com/articles/12492.pdfhttps://peerj.com/articles/12492/https://doaj.org/toc/2167-8359Salinity is one of the major abiotic stress that limits crop growth and productivity. We investigated the transcriptomes of salt-treated soybean seedlings versus a control using RNA-seq to better understand the molecular mechanisms of the soybean (Glycine max L.) response to salt stress. Transcriptome analysis revealed 1,235 differentially expressed genes (DEGs) under salt stress. Several important pathways and key candidate genes were identified by KEGG enrichment. A total of 116 differentially expressed transcription factors (TFs) were identified, and 17 TFs were found to belong to MYB families. Phylogenetic analysis revealed that these TFs may be involved in salt stress adaptation. Further analysis revealed that GmMYB46 was up-regulated by salt and mannitol and was localized in the nucleus. The salt tolerance of transgenic Arabidopsis overexpressing GmMYB46 was significantly enhanced compared to wild-type (WT). GmMYB46 activates the expression of salt stress response genes (P5CS1, SOD, POD, NCED3) in Arabidopsis under salt stress, indicating that the GmMYB46 protein mediates the salt stress response through complex regulatory mechanisms. This study provides information with which to better understand the molecular mechanism of salt tolerance in soybeans and to genetically improve the crop.Xun LiuXinxia YangBin ZhangPeerJ Inc.articleSoybeanTranscriptome analysisSalt stressDifferentially expressed genesGmMYB46MedicineRENPeerJ, Vol 9, p e12492 (2021)
institution DOAJ
collection DOAJ
language EN
topic Soybean
Transcriptome analysis
Salt stress
Differentially expressed genes
GmMYB46
Medicine
R
spellingShingle Soybean
Transcriptome analysis
Salt stress
Differentially expressed genes
GmMYB46
Medicine
R
Xun Liu
Xinxia Yang
Bin Zhang
Transcriptome analysis and functional identification of GmMYB46 in soybean seedlings under salt stress
description Salinity is one of the major abiotic stress that limits crop growth and productivity. We investigated the transcriptomes of salt-treated soybean seedlings versus a control using RNA-seq to better understand the molecular mechanisms of the soybean (Glycine max L.) response to salt stress. Transcriptome analysis revealed 1,235 differentially expressed genes (DEGs) under salt stress. Several important pathways and key candidate genes were identified by KEGG enrichment. A total of 116 differentially expressed transcription factors (TFs) were identified, and 17 TFs were found to belong to MYB families. Phylogenetic analysis revealed that these TFs may be involved in salt stress adaptation. Further analysis revealed that GmMYB46 was up-regulated by salt and mannitol and was localized in the nucleus. The salt tolerance of transgenic Arabidopsis overexpressing GmMYB46 was significantly enhanced compared to wild-type (WT). GmMYB46 activates the expression of salt stress response genes (P5CS1, SOD, POD, NCED3) in Arabidopsis under salt stress, indicating that the GmMYB46 protein mediates the salt stress response through complex regulatory mechanisms. This study provides information with which to better understand the molecular mechanism of salt tolerance in soybeans and to genetically improve the crop.
format article
author Xun Liu
Xinxia Yang
Bin Zhang
author_facet Xun Liu
Xinxia Yang
Bin Zhang
author_sort Xun Liu
title Transcriptome analysis and functional identification of GmMYB46 in soybean seedlings under salt stress
title_short Transcriptome analysis and functional identification of GmMYB46 in soybean seedlings under salt stress
title_full Transcriptome analysis and functional identification of GmMYB46 in soybean seedlings under salt stress
title_fullStr Transcriptome analysis and functional identification of GmMYB46 in soybean seedlings under salt stress
title_full_unstemmed Transcriptome analysis and functional identification of GmMYB46 in soybean seedlings under salt stress
title_sort transcriptome analysis and functional identification of gmmyb46 in soybean seedlings under salt stress
publisher PeerJ Inc.
publishDate 2021
url https://doaj.org/article/f116736375fc4e5fb52502adfe1b35ce
work_keys_str_mv AT xunliu transcriptomeanalysisandfunctionalidentificationofgmmyb46insoybeanseedlingsundersaltstress
AT xinxiayang transcriptomeanalysisandfunctionalidentificationofgmmyb46insoybeanseedlingsundersaltstress
AT binzhang transcriptomeanalysisandfunctionalidentificationofgmmyb46insoybeanseedlingsundersaltstress
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