Multi-omics analysis of hexaploid triticale that show molecular responses to salt stress during seed germination

The development of a salt-tolerant hexaploid triticale cultivar offers an economical and efficient solution for utilizing marginal land. Understanding how hexaploid triticales respond to salt stress is essential if this goal is to be achieved. A genome-wide association study (GWAS), along with trans...

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Main Authors: Dongxia Wang, Jiedong Li, Shiming Li, Jiongjie Fu, Baolong Liu, Dong Cao
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-01-01
Series:Frontiers in Plant Science
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Online Access:https://www.frontiersin.org/articles/10.3389/fpls.2024.1529961/full
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author Dongxia Wang
Jiedong Li
Shiming Li
Jiongjie Fu
Baolong Liu
Baolong Liu
Baolong Liu
Dong Cao
Dong Cao
Dong Cao
author_facet Dongxia Wang
Jiedong Li
Shiming Li
Jiongjie Fu
Baolong Liu
Baolong Liu
Baolong Liu
Dong Cao
Dong Cao
Dong Cao
author_sort Dongxia Wang
collection DOAJ
description The development of a salt-tolerant hexaploid triticale cultivar offers an economical and efficient solution for utilizing marginal land. Understanding how hexaploid triticales respond to salt stress is essential if this goal is to be achieved. A genome-wide association study (GWAS), along with transcriptome and proteome analyses, were used in the present study to determine the molecular responses to salt stress in hexaploid triticale. In total, 81 marker-trait associations for 10 salt-tolerance traits were identified in 153 hexaploid triticale accessions, explaining 0.71% to 56.98% of the phenotypic variation, and 54 GWAS-associated genes were uncovered. A total of 67, 88, and 688 differential expression genes were co-expressed at both the transcriptomic and proteomic levels after 4, 12, and 18 h of salt stress, respectively. Among these differentially expressed genes, six appeared in the coincident expression trends for both the transcriptomic and proteomic levels at the seed germination stage. A total of nine common KEGG pathways were enriched at both the transcriptomic and proteomic levels at 4, 12, and 18 h. After integrating GWAS-target genes with transcriptomics and proteomics approaches that the candidate gene late embryogenesis abundant protein 14 (LEA14) was up-regulated at the transcriptomic and proteomic levels. LEA14 contained important stress-responsive cis-acting regulatory elements that could be dynamically regulated by the binding of transcription factors (TFs). This suggested that LEA14 was a key gene associated with salt tolerance in hexaploid triticale and could respond quickly to salt stress. This study improved understanding about the potential molecular mechanisms associated with hexaploid triticale salt tolerance and contributed to the breeding of salt-tolerant germplasms and the utilization of saline soils.
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issn 1664-462X
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publisher Frontiers Media S.A.
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spelling doaj-art-add4ccf523b94682894e6f701c306b2d2025-01-21T08:36:56ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2025-01-011510.3389/fpls.2024.15299611529961Multi-omics analysis of hexaploid triticale that show molecular responses to salt stress during seed germinationDongxia Wang0Jiedong Li1Shiming Li2Jiongjie Fu3Baolong Liu4Baolong Liu5Baolong Liu6Dong Cao7Dong Cao8Dong Cao9Department of Agriculture and Forestry, College of Agriculture and Animal Husbandry, Qinghai University, Xining, Qinghai, ChinaDepartment of Agriculture and Forestry, College of Agriculture and Animal Husbandry, Qinghai University, Xining, Qinghai, ChinaQinghai Province Key Laboratory of Crop Molecular Breeding, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, Qinghai, ChinaDepartment of Agriculture and Forestry, College of Agriculture and Animal Husbandry, Qinghai University, Xining, Qinghai, ChinaQinghai Province Key Laboratory of Crop Molecular Breeding, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, Qinghai, ChinaKey Laboratory of Adaptation and Evolution of Plateau Biota (AEPB), Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, Qinghai, ChinaUniversity of Chinese Academy of Sciences, Beijing, ChinaQinghai Province Key Laboratory of Crop Molecular Breeding, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, Qinghai, ChinaKey Laboratory of Adaptation and Evolution of Plateau Biota (AEPB), Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, Qinghai, ChinaUniversity of Chinese Academy of Sciences, Beijing, ChinaThe development of a salt-tolerant hexaploid triticale cultivar offers an economical and efficient solution for utilizing marginal land. Understanding how hexaploid triticales respond to salt stress is essential if this goal is to be achieved. A genome-wide association study (GWAS), along with transcriptome and proteome analyses, were used in the present study to determine the molecular responses to salt stress in hexaploid triticale. In total, 81 marker-trait associations for 10 salt-tolerance traits were identified in 153 hexaploid triticale accessions, explaining 0.71% to 56.98% of the phenotypic variation, and 54 GWAS-associated genes were uncovered. A total of 67, 88, and 688 differential expression genes were co-expressed at both the transcriptomic and proteomic levels after 4, 12, and 18 h of salt stress, respectively. Among these differentially expressed genes, six appeared in the coincident expression trends for both the transcriptomic and proteomic levels at the seed germination stage. A total of nine common KEGG pathways were enriched at both the transcriptomic and proteomic levels at 4, 12, and 18 h. After integrating GWAS-target genes with transcriptomics and proteomics approaches that the candidate gene late embryogenesis abundant protein 14 (LEA14) was up-regulated at the transcriptomic and proteomic levels. LEA14 contained important stress-responsive cis-acting regulatory elements that could be dynamically regulated by the binding of transcription factors (TFs). This suggested that LEA14 was a key gene associated with salt tolerance in hexaploid triticale and could respond quickly to salt stress. This study improved understanding about the potential molecular mechanisms associated with hexaploid triticale salt tolerance and contributed to the breeding of salt-tolerant germplasms and the utilization of saline soils.https://www.frontiersin.org/articles/10.3389/fpls.2024.1529961/fullhexaploid triticalesalt tolerancegermination stagemulti-omicsmolecular response
spellingShingle Dongxia Wang
Jiedong Li
Shiming Li
Jiongjie Fu
Baolong Liu
Baolong Liu
Baolong Liu
Dong Cao
Dong Cao
Dong Cao
Multi-omics analysis of hexaploid triticale that show molecular responses to salt stress during seed germination
Frontiers in Plant Science
hexaploid triticale
salt tolerance
germination stage
multi-omics
molecular response
title Multi-omics analysis of hexaploid triticale that show molecular responses to salt stress during seed germination
title_full Multi-omics analysis of hexaploid triticale that show molecular responses to salt stress during seed germination
title_fullStr Multi-omics analysis of hexaploid triticale that show molecular responses to salt stress during seed germination
title_full_unstemmed Multi-omics analysis of hexaploid triticale that show molecular responses to salt stress during seed germination
title_short Multi-omics analysis of hexaploid triticale that show molecular responses to salt stress during seed germination
title_sort multi omics analysis of hexaploid triticale that show molecular responses to salt stress during seed germination
topic hexaploid triticale
salt tolerance
germination stage
multi-omics
molecular response
url https://www.frontiersin.org/articles/10.3389/fpls.2024.1529961/full
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