ArticlePlant physiology2023
The auxin response factor TaARF15-A1 negatively regulates senescence in common wheat (Triticum aestivum L.).
Article in Plant physiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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17 citing papers in PubMed, 36 citations in OpenAlex.
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- Characterization, genetic analysis and gene identification of an EMS-mutagenized lesion-mimic mutant with enhanced powdery mildew resistance in bread wheat (Triticum aestivum L.).TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2026Article
- TaFT-D1 positively regulates grain weight by acting as a coactivator of TaFDL2 in wheat.Plant biotechnology journal · 2025Article
- Mapping of a Quantitative Trait Locus for Stay-Green Trait in Common Wheat.Plants (Basel, Switzerland) · 2025Article
- Genetic Basis of Seedling Root Traits in Common Wheat (Plants (Basel, Switzerland) · 2025Article
- CRISPR/Cas9: a sustainable technology to enhance climate resilience in major Staple Crops.Frontiers in genome editing · 2025Review
- Expression and function identification of senescence-associated genes under continuous drought treatment in grapevine (Physiology and molecular biology of plants : an international journal of functional plant biology · 2024Article
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- Leaf Senescence Regulation Mechanism Based on Comparative Transcriptome Analysis in Foxtail Millet.International journal of molecular sciences · 2024Article
- Using UAV-Based Temporal Spectral Indices to Dissect Changes in the Stay-Green Trait in Wheat.Plant phenomics (Washington, D.C.) · 2024Article
- Enigmatic role of auxin response factors in plant growth and stress tolerance.Frontiers in plant science · 2024Review
- Grain yield trade-offs in spike-branching wheat can be mitigated by elite alleles affecting sink capacity and post-anthesis source activity.Journal of experimental botany · 2024Article
- CRISPR/Cas9 genome editing in wheat: enhancing quality and productivity for global food security-a review.Functional & integrative genomics · 2023Review
- Wheat AUXIN RESPONSE FACTOR 15 delays senescence through interaction at the TaNAM1 locus.Plant physiology · 2023Article
- Wheat AUXIN RESPONSE FACTOR 15 delays senescence through competitive interaction at the TaNAM1 locus.Plant physiology · 2023Article
- Transcriptome analysis of auxin transcription factor OsARF17-mediated rice stripe mosaic virus response in rice.Frontiers in microbiology · 2023Article
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9 authors at 3 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
Auxin plays an important role in regulating leaf senescence. Auxin response factors (ARFs) are crucial components of the auxin signaling pathway; however, their roles in leaf senescence in cereal crops are unknown. In this study, we identified TaARF15-A1 as a negative regulator of senescence in wheat (Triticum aestivum L.) by analyzing TaARF15-A1 overexpression (OE) and RNA interference lines and CRISPR/Cas9-based arf15 mutants. OE of TaARF15-A1 delayed senescence, whereas knockdown lines and knockout mutants showed accelerated leaf senescence and grain ripening. RNA-seq analysis revealed that TaARF15-A1 delays leaf senescence by negatively regulating senescence-promoting processes and positively modulating senescence-delaying genes including senescence-associated phytohormone biosynthesis and metabolism genes as well as transcription factors (TFs). We also demonstrated that TaARF15-A1 physically interacts with TaMYC2, a core jasmonic acid (JA) signaling TF that positively modulates wheat senescence. Furthermore, TaARF15-A1 suppressed the expression of TaNAM-1 (TaNAM-A1 and TaNAM-D1) via protein-protein interaction and competition with TaMYC2 for binding to its promoter to regulate senescence. Finally, we identified two haplotypes of TaARF15-A1 in global wheat collections. Association analysis revealed that TaARF15-A1-HapI has undergone strong selection during wheat breeding in China, likely owing to its earlier maturity. Thus, we identify TaARF15-A1 as a negative regulator of senescence in common wheat and present another perspective on the crosstalk between auxin and JA signaling pathways in regulating plant senescence.
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