Abstract
Winter rapeseed seedlings are susceptible to low temperature during overwintering in Northwest China, leading to reduced crops production. Freezing stress is one of the main environmental stresses in Northwest China from late autumn to early spring, an eventful period for overwinter survival rate of winter rapeseed. However, the molecular mechanism of freezing tolerance formation is still very backward in winter rapeseed. In this study, using a pair of freezing-sensitive and freezing-resistant cultivars NQF24 and NTS57, the exhaustive effects of freezing stress on freezing tolerance formation were evaluated by analyzing leaf at the levels of transcriptome, proteome, physiology and ultrastructure. There were 8497 and 7358 differentially expressed genes (DEGs) and 418 and 573 differentially abundant proteins (DAPs) identified in the leaf of NQF24 and NTS57 under freezing stress, respectively. Function enrichment analysis showed that most of the enriched DEGs and DAPs were associated with plant hormones signal transduction, fatty acid metabolism, ribosome, plant-pathogen interaction and secondary metabolites biosynthesis. Freezing tolerance is formed by enhanced signals transduction, increased the biosynthesis of protein and secondary metabolites, enhanced reactive oxygen species (ROS) scavenging, more osmolytes, lower lipid peroxidation, and stronger cell stability. These results can be taken as selection indicators in freezing tolerance breeding program in rapeseed.
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Abbreviations
- ABA:
-
Abscisic acid
- ACO:
-
1-Aminocyclopropane-1-carboxylate oxidase
- ACS:
-
1-Aminocyclopropane-1-carboxylate synthase
- ABR:
-
Abscisic acid receptor
- ARP:
-
Auxin responsive protein
- ASS:
-
ATP synthase subunit
- ATP:
-
Auxin transporter protein
- BR:
-
Brassinosteroid
- BRI:
-
Brassinosteroid insensitive
- BZR:
-
Brassinazole-resistant
- CAT:
-
Catalase
- CCMT:
-
Caffeic acid O-methyltransferase
- CCO:
-
Cytochrome c oxidase
- CDPK:
-
Ca2+-dependent protein kinase
- CIPK:
-
CBL-interacting serine/threonine-protein kinase
- CP:
-
Chaperone protein
- DAP:
-
Differentially abundant protein
- DDA:
-
Data-dependent acquisition
- DEG:
-
Differentially expressed gene
- DIA:
-
Data-independent acquisition
- EIN:
-
Ethylene insensitive protein
- ERF:
-
Ethylene response factor
- FPKM:
-
Fragments per kilobase per million
- GH3:
-
GH3 auxin-responsive promoter
- GO:
-
Gene Ontology
- HSF:
-
Heat stress transcription factor
- HSP:
-
Heat shock protein
- JA:
-
Jasmonic acid
- KEGG:
-
Kyoto Encyclopedia of Genes and Genomes
- LOX:
-
Lipoxygenases
- MAPK:
-
Mitogen-activated protein kinase
- MDA:
-
Malondialdehyde
- PCA:
-
Principal component analysis
- PIF:
-
Phytochrome interacting factor
- POD:
-
Peroxidase
- PP2C:
-
Protein phosphatase 2C
- RLK:
-
Receptor-like kinase
- ROS:
-
Reactive oxygen species
- SAMT:
-
S-Adenosylmethionine-dependent methyltransferase
- SHCT:
-
Shikimate O-hydroxycinnamoyltransferase
- SnRK:
-
SNF1-related protein kinase
- SOD:
-
Superoxide dismutase
- SPK:
-
Serine/threonine-protein kinase
- TEM:
-
Transmission electron microscope
- TF:
-
Transcription factor
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Acknowledgements
The authors gratefully acknowledge the partial financial support from the Young Doctoral Fund of Gansu (2021QB-035), Industrial Support Plan Project of Gansu (2021CYZC-46), Scientific Research Start-up Funds for Openly-recruited Doctors of Gansu Agricultural University (GAU-KYQD-2019-25), Ministry of Science and Technology of China (2018YFD0100500), National Natural Science Foundation of China (31660404) and the Special Funds for the Central Government to Guide Local Technological Development of China (ZCYD-2020-2-3).
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This work presented here was finished by all authors. JW performed the multi-omics joint analysis and wrote the manuscript; GZ executed the physiological and biochemical assays; XD and SL participated in the proteomic data analysis; HL and YW cultivated all plant samples; ZL designed the experiments and revised the paper. All authors have read and approved the final manuscript.
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Communicated by Vaclav Motyka.
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10725_2021_763_MOESM1_ESM.jpg
Supplementary file1 (JPG 723 kb) Fig S1. The repeatability analysis among three biological replicates of NFC, NFT, NSC and NST in transcriptome (A) and proteome (B), respectively
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Supplementary file2 (JPG 1918 kb) Fig S2. Pearson’s correlation coefficient among three biological replicates of NFC, NFT, NST and NST in transcriptome
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Supplementary file3 (JPG 1509 kb) Fig S3. Pearson’s correlation coefficient between three biological replicates of NFC, NFT, NST and NST in proteome
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Supplementary file4 (JPG 576 kb) Fig S4. GO classification analysis of the specifically detected DEGs (A) and DAPs (B) in NFC_NFT
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Supplementary file5 (JPG 582 kb) Fig S5. GO classification analysis of the specifically detected DEGs (A) and DAPs (B) detected in NSC_NST
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Supplementary file6 (XLSX 25216 kb) Table S1. The proteins database of Brassica napus downloaded from the NCBI, and the list of all genes and proteins identified in transcriptome and proteome, respectively
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Supplementary file7 (XLSX 7637 kb) Table S2. DEGs identified in leaves between the stressed and control rapeseed cultivar NF and NS, respectively
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Supplementary file8 (XLSX 1753 kb) Table S3. DAPs identified in leaves between the stressed and control rapeseed cultivar NF and NS, respectively
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Supplementary file11 (XLSX 1444 kb) Table S6. Differentially expressed TFs identified in leaves between the control and the stressed rapeseed cultivar NF and NS, respectively, by transcriptome
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Wei, J., Zheng, G., Dong, X. et al. Integration of transcriptome and proteome analysis reveals the mechanism of freezing tolerance in winter rapeseed. Plant Growth Regul 96, 103–118 (2022). https://doi.org/10.1007/s10725-021-00763-z
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DOI: https://doi.org/10.1007/s10725-021-00763-z