Function Analysis of a Maize Endo-1,4-β-xylanase Gene ZmHSL in Response to High-Temperature Stress
Abstract
:1. Introduction
2. Results
2.1. Phenotypic Analysis of a Maize Heat-Sensitive Mutant Zmhsl-1
2.2. Fine Mapping and Identification of the Candidate Gene of Zmhsl-1
2.3. ZmHSL Encodes Endo-1,4-β-xylanase
2.4. ZmHSL Functions in Regulating Cell Wall Content and Then Water Transport
2.5. Differently Expressed Genes between Wild Type and Zmhsl-1 by Transcriptome Analysis
2.5.1. Functional Enrichment Analysis of Differentially Expressed Genes
2.5.2. Expression Analysis of HSF-, HSP-, and UPR-Related Genes in Wild-Type and Zmhsl-1 Plants under High-Temperature Stress
3. Discussion
3.1. Alterations in Cell Wall Structure and Composition Lead to Defects in Water Transport
3.2. ZmHSL Is Essential for Maize Normal Growth and Development
3.3. The Underlying Mechanism of Heat Sensitivity in ZmHSL
4. Materials and Methods
4.1. Plant Materials
4.2. Measurements of Agronomic Traits
4.3. Determination of Photosynthetic Pigments and Photosynthetic Parameters
4.4. Genetic Analysis of Mutants
4.5. BSA-Seq Analysis
4.6. Xylanase Activity Assay
4.7. Determination of Water Transport and Leaf Water Loss
4.8. Lignin Staining
4.9. Determination of Cell Wall Composition
4.10. RNA Sequencing (RNA-Seq) and Data Analysis
5. Conclusions
Supplementary Materials
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Population | Normal Leaf | Curling Leaf | Ratio | χ2 |
---|---|---|---|---|
Zheng58 × Zmhsl-1 F2 | 174 | 51 | 3.4:1 | 0.53 |
(Zheng58 × Zmhsl-1) × Zmhsl-1 BC1F1 | 134 | 142 | 0.9:1 | 0.18 |
Gene ID | Chr | Position | Nucleotide Change | Codon Change | Type |
---|---|---|---|---|---|
Zm00001d013540 | 5 | 13935295 | G>A | TGC>TAC | Missense-variant, Cys401Tyr |
Zm00001d013561 | 5 | 14348384 | C>T | CAG>TAG | Stop-gained, Gln680* |
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Pang, S.; Zheng, H.; Zhang, J.; Ren, X.; Zong, X.; Zou, J.; Wang, L. Function Analysis of a Maize Endo-1,4-β-xylanase Gene ZmHSL in Response to High-Temperature Stress. Int. J. Mol. Sci. 2024, 25, 8834. https://doi.org/10.3390/ijms25168834
Pang S, Zheng H, Zhang J, Ren X, Zong X, Zou J, Wang L. Function Analysis of a Maize Endo-1,4-β-xylanase Gene ZmHSL in Response to High-Temperature Stress. International Journal of Molecular Sciences. 2024; 25(16):8834. https://doi.org/10.3390/ijms25168834
Chicago/Turabian StylePang, Shengyan, Hongyan Zheng, Jiankui Zhang, Xiaotian Ren, Xuefeng Zong, Junjie Zou, and Lei Wang. 2024. "Function Analysis of a Maize Endo-1,4-β-xylanase Gene ZmHSL in Response to High-Temperature Stress" International Journal of Molecular Sciences 25, no. 16: 8834. https://doi.org/10.3390/ijms25168834