ArticleBMC plant biology2024
Characterization of DREB family genes in Lotus japonicus and LjDREB2B overexpression increased drought tolerance in transgenic Arabidopsis.
Article in BMC plant biology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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9 citing papers in PubMed.
- Article
- Molecular Module FcERF71-FcDREB1 of Fig Represses Fruit Softening viaJournal of agricultural and food chemistry · 2026Article
- Integrated analysis of potassium acetate effects on barley: growth, physiological traits, genetic diversity, and DREB gene regulation.BMC plant biology · 2026Article
- Molecular docking of the DREB(A-6) group and enhanced thermotolerance in potato by overexpressing the DREB(A-6) gene.Journal of plant research · 2026Article
- Silencing of SlERF.F5 affects tolerance to drought, salt and low-temperature stresses in tomato.BMC genomics · 2025Article
- Comparative transcriptomic and biochemical analyses reveal candidate regulatory genes associated with early drought response signatures in contrasting rapeseed (Brassica napus) cultivars.Scientific reports · 2025Article
- Stage-specific transcriptomic responses of wheat to heat, drought, and combined stress: AP2/ERF regulatory networks and functional characterization of TaEREBP1-L.BMC plant biology · 2025Article
- Characterization of DREB family genes in loquat and their co-expression network analysis in response to drought.BMC plant biology · 2025Article
- Genome-Wide Identification and Expression Profiling of Dehydration-Responsive Element-Binding Family Genes in Flax (International journal of molecular sciences · 2025Article
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4 authors.
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Abstract
backgroundDrought stress affects plant growth and development. DREB proteins play important roles in modulating plant growth, development, and stress responses, particularly under drought stress. To study the function of DREB transcription factors (TFs), we screened key DREB-regulating TFs for drought in Lotus japonicus.
resultsForty-two DREB TFs were identified, and phylogenetic analysis of proteins from L. japonicus classified them into five subfamilies (A1, A2, A4, A5, A6). The gene motif composition of the proteins is conserved within the same subfamily. Based on the cis-acting regulatory element analysis, we identified many growth-, hormone-, and stress-responsive elements within the promoter regions of DREB. We further analyzed the expression pattern of four genes in the A2 subfamily in response to drought stress. We found that the expression of most of the LjDREB A2 subfamily genes, especially LjDREB2B, was induced by drought stress. We further generated LjDREB2B overexpression transgenic Arabidopsis plants. Under drought stress, the growth of wild-type (WT) and overexpressing LjDREB2B (OE) Arabidopsis lines was inhibited; however, OE plants showed better growth. The malondialdehyde content of LjDREB2B overexpressing lines was lower than that of the WT plants, whereas the proline content and antioxidant enzyme activities in the OE lines were significantly higher than those in the WT plants. Furthermore, after drought stress, the expression levels of AtP5CS1, AtP5CS2, AtRD29A, and AtRD29B in the OE lines were significantly higher than those in the WT plants.
conclusionsOur results facilitate further functional analysis of L. japonicus DREB. LjDREB2B overexpression improves drought tolerance in transgenic Arabidopsis. These results indicate that DREB holds great potential for the genetic improvement of drought tolerance in L. japonicus.
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