ArticleProceedings of the National Academy of Sciences of the United States of America2014
Evolution of physiological responses to salt stress in hexaploid wheat.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 84 papers.
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84 citing papers in PubMed.
- Integration of the D-Genome Reshapes Gene Transcription, Chromatin Architecture, and Metabolome of Allohexaploid Wheat, Leading to Enhanced Environmental Adaptability.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Transposable element-driven expansion of enhancer RNA repertoires underlies regulatory innovation and polyploid adaptation in cereal crops.Plant communications · 2026Article
- Phylogenetic and Functional Analyses of WheatBiology · 2026Article
- Salinity tolerance in wheat: rethinking the targets.Journal of experimental botany · 2026Review
- Aneuploidy confers environmentally robust higher evolvability than euploidy in a synthetic allotetraploid wheat.Science advances · 2026Article
- Digitaria genome analyses indicate introgression may drive local adaptation and herbicide resistance.Nature communications · 2026Article
- Enhanced lignin and cellulose metabolism promote cell wall synthesis and growth of wild soybean HRA under alkali stress.Annals of botany · 2025Article
- Phylogenomics provides comprehensive insights into the evolutionary relationships among cultivated buckwheat species.Genome biology · 2025Article
- Auxin-Producing Pseudomonas Recruited by Root Flavonoids Increases Rice Rhizosheath Formation through the Bacterial Histidine Kinase Under Soil Drying.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- Expression pattern changes of three homeologs in chemokine activity enhance antiviral response to herpesvirus infection in a newly synthesized alloheptaploid.BMC genomics · 2025Article
- Genomic and evolutionary evidence for drought adaptation of allopolyploid Brachypodium hybridum.Journal of experimental botany · 2025Article
- Horizontally acquired CSP genes contribute to wheat adaptation and improvement.Nature plants · 2025Article
- Soil Salinization and Ancient Hulled Wheat: A Study on Antioxidant Defense Mechanisms.Plants (Basel, Switzerland) · 2025Article
- Deciphering salt tolerance mechanisms in synthetic hexaploid and bread wheat under humic acid application: physiological and genetic perspectives.Frontiers in plant science · 2025Article
- A gene expression atlas ofFrontiers in plant science · 2025Article
- Epigenomic and 3D genomic mapping reveals developmental dynamics and subgenomic asymmetry of transcriptional regulatory architecture in allotetraploid cotton.Nature communications · 2024Article
- GhiPLATZ17 and GhiPLATZ22, zinc-dependent DNA-binding transcription factors, promote salt tolerance in upland cotton.Plant cell reports · 2024Article
- Physiological and Molecular Modulations to Drought Stress in theInternational journal of molecular sciences · 2024Article
- Allelic Variations in Vernalization (Genes · 2024Review
- Comparative adaptability assessment of bread wheat and synthetic hexaploid genotypes under saline conditions using physiological, biochemical, and genetic indices.Frontiers in plant science · 2024Article
24 more citing papers are in PubMed but not listed here.
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10 authors.
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Abstract
Hexaploid bread wheat (Triticum aestivum L., genome BBAADD) is generally more salt tolerant than its tetraploid wheat progenitor (Triticum turgidum L.). However, little is known about the physiological basis of this trait or about the relative contributions of allohexaploidization and subsequent evolutionary genetic changes on the trait development. Here, we compared the salt tolerance of a synthetic allohexaploid wheat (neo-6x) with its tetraploid (T. turgidum; BBAA) and diploid (Aegilops tauschii; DD) parents, as well as a natural hexaploid bread wheat (nat-6x). We studied 92 morphophysiological traits and analyzed homeologous gene expression of a major salt-tolerance gene High-Affinity K(+) Transporter 1;5 (HKT1;5). We observed that under salt stress, neo-6x exhibited higher fitness than both of its parental genotypes due to inheritance of favorable traits like higher germination rate from the 4x parent and the stronger root Na(+) retention capacity from the 2x parent. Moreover, expression of the D-subgenome HKT1;5 homeolog, which is responsible for Na(+) removal from the xylem vessels, showed an immediate transcriptional reprogramming following allohexaploidization, i.e., from constitutive high basal expression in Ae. tauschii (2x) to salt-induced expression in neo-6x. This phenomenon was also witnessed in the nat-6x. An integrated analysis of 92 traits showed that, under salt-stress conditions, neo-6x resembled more closely the 2x than the 4x parent, suggesting that the salt stress induces enhanced expressivity of the D-subgenome homeologs in the synthetic hexaploid wheat. Collectively, the results suggest that condition-dependent functionalization of the subgenomes might have contributed to the wide-ranging adaptability of natural hexaploid wheat.
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