ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2024
SbMYC2 mediates jasmonic acid signaling to improve drought tolerance via directly activating SbGR1 in sorghum.
Article in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.
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Who cites it
11 citing papers in PubMed, 1 synthesis or guideline pooled it, 18 citations in OpenAlex.
- Meta-Quantitative Trait Loci Analysis and Candidate Gene Mining for Drought Tolerance-Associated Traits in Maize (International journal of molecular sciences · 2024Pooled it
- Identification of thePlants (Basel, Switzerland) · 2026Article
- Genome-Wide Identification ofPlants (Basel, Switzerland) · 2026Article
- Jasmonates regulate drought resistance by controlling the secondary metabolism in wheat seedlings.BMC plant biology · 2026Article
- Predicting rice drought-responsive genes via distance-based prototypical graph neural network with path aggregation mechanism.Plant methods · 2026Article
- The Role of MYC2 Transcription Factors in Plant Secondary Metabolism and Stress Response Mechanisms.Plants (Basel, Switzerland) · 2025Review
- Millets for a sustainable future.Journal of experimental botany · 2025Review
- Melatonin enhances salt tolerance by promoting CcCAD10-mediated lignin biosynthesis in pigeon pea.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- Sorghum as a monocot model for drought research.Frontiers in plant science · 2025Review
- Barley stripe mosaic virus-induced gene silencing for functional validation of abiotic stress in barley.Functional & integrative genomics · 2024Review
- Decoding the genetic blueprint: regulation of key agricultural traits in sorghum.Advanced biotechnology · 2024Review
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Authors and funding
8 authors at 3 institutions in 1 country.
Funding
Abstract
key messageSbMYC2 functions as a key regulator under JA signaling in enhancing drought tolerance of sorghum through direct activating SbGR1. Drought stress is one of the major threats to crop yield. In response to drought stress, functions of basic helix-loop-helix (bHLH) transcription factors (TFs) have been reported in Arabidopsis and rice, but little is known for sorghum. Here, we characterized the function of SbMYC2, a bHLH TF in sorghum, and found that SbMYC2 responded most significantly to PEG-simulated drought stress and JA treatments. Overexpression of SbMYC2 significantly enhanced drought tolerance in Arabidopsis, rice and sorghum. In addition, it reduced reactive oxygen species (ROS) accumulation and increased chlorophyll content in sorghum leaves. While silencing SbMYC2 by virus-induced gene silencing (VIGS) resulted in compromised drought tolerance of sorghum seedlings. Moreover, SbMYC2 can directly activate the expression of GLUTATHIONE-DISULFIDE REDUCTASE gene SbGR1. SbGR1 silencing led to significantly weakened drought tolerance of sorghum, and higher ROS accumulation and lower chlorophyll content in sorghum leaves were detected. In addition, SbMYC2 can interact with SbJAZs, suppressors of JA signaling, and thus can mediate JA signaling to activate SbGR1, thereby regulating sorghum's tolerance to drought stress. Overall, our findings demonstrate that bHLH TF SbMYC2 plays an important role in sorghum's response to drought stress, thus providing one theoretical basis for genetic enhancement of sorghum and even rice.
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