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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Main Authors: Xun Liu, Xinxia Yang, Bin Zhang
Format: Article
Language:English
Published: PeerJ Inc. 2021-11-01
Series:PeerJ
Subjects:
Online Access:https://peerj.com/articles/12492.pdf
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author Xun Liu
Xinxia Yang
Bin Zhang
author_facet Xun Liu
Xinxia Yang
Bin Zhang
author_sort Xun Liu
collection DOAJ
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.
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spelling doaj.art-f116736375fc4e5fb52502adfe1b35ce2023-12-03T11:05:35ZengPeerJ Inc.PeerJ2167-83592021-11-019e1249210.7717/peerj.12492Transcriptome analysis and functional identification of GmMYB46 in soybean seedlings under salt stressXun Liu0Xinxia Yang1Bin Zhang2College of Chemistry and Bioengineering, Hunan University of Science and Engineering, Yongzhou, ChinaDepartment of Logistics, Hunan University of Science and Engineering, Yongzhou, ChinaCollege of Chemistry and Bioengineering, Hunan University of Science and Engineering, Yongzhou, ChinaSalinity 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.https://peerj.com/articles/12492.pdfSoybeanTranscriptome analysisSalt stressDifferentially expressed genesGmMYB46
spellingShingle Xun Liu
Xinxia Yang
Bin Zhang
Transcriptome analysis and functional identification of GmMYB46 in soybean seedlings under salt stress
PeerJ
Soybean
Transcriptome analysis
Salt stress
Differentially expressed genes
GmMYB46
title 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_short 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
topic Soybean
Transcriptome analysis
Salt stress
Differentially expressed genes
GmMYB46
url https://peerj.com/articles/12492.pdf
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