Name | The U-box family genes in Medicago truncatula: key elements in response to salt, cold, and drought stresses |
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Description | The ubiquitination pathway regulates growth, development, and stress responses in plants, and the U-box protein family of ubiquitin ligases has important roles in this pathway. Here, 64 putative U-box proteins were identified in the Medicago truncatula genome. In addition to the conserved U-box motif, other functional domains, such as the ARM, kinase, KAP, and WD40 domains, were also detected. Phylogenetic analysis of the M. truncatula U-box proteins grouped them into six subfamilies, and chromosomal mapping and synteny analyses indicated that tandem and segmental duplications may have contributed to the expansion and evolution of the U-box gene family in this species. Using RNA-seq data from M. truncatula seedlings subjected to three different abiotic stresses, we identified 33 stress-inducible plant U-box genes (MtPUBs). Specifically, 25 salinity-, 15 drought-, and 16 cold-regulated MtPUBs were detected. Among them, MtPUB10, MtPUB17, MtPUB18, MtPUB35, MtPUB42, and MtPUB44 responded to all three stress conditions. Expression profiling by real-time PCR was consistent with the RNA-seq data, and stress-related elements were identified in the promoter regions. The present findings strongly indicate that U-box proteins play critical roles in abiotic stress response in M. truncatula. Overall design: RNA-seq in Medicago truncatula |
Contact | Jiang Xi Agricultural University |
Xref | PRJNA563553 |
Reference | |
Conditions | 12 |
Species | Medicago truncatula |
Metadata export | .CSV .JSON |
Mapped Genomes | MtrunA17r5.0 MtV4.0 |
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Expression Analysis | Expression Profile / Differential Expression / Co-expression |
Name | Genotype | Mutation | Stage | Tissue | Treatment | Level | Time | Samples | Xref | Download alignments |
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Cold_0h | Wild type | Jemalong A17 | 4 weeks | seedling | Cold | 0h |
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Cold_12h | Wild type | Jemalong A17 | 4 weeks | seedling | Cold | 12h |
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Cold_2h | Wild type | Jemalong A17 | 4 weeks | seedling | Cold | 2h |
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Cold_6h | Wild type | Jemalong A17 | 4 weeks | seedling | Cold | 6h |
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Drought_0h | Wild type | Jemalong A17 | 4 weeks | seedling | Drought | 0h |
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Drought_12h | Wild type | Jemalong A17 | 4 weeks | seedling | Drought | 12h |
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Drought_2h | Wild type | Jemalong A17 | 4 weeks | seedling | Drought | 2h |
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Drought_6h | Wild type | Jemalong A17 | 4 weeks | seedling | Drought | 6h |
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Salt_0h | Wild type | Jemalong A17 | 4 weeks | seedling | Salt | 0h |
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Salt_12h | Wild type | Jemalong A17 | 4 weeks | seedling | Salt | 12h |
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Salt_2h | Wild type | Jemalong A17 | 4 weeks | seedling | Salt | 2h |
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Salt_6h | Wild type | Jemalong A17 | 4 weeks | seedling | Salt | 6h |
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