ArticleBMC plant biology2025
Genome-wide identification of chitinase gene family in Hordeum vulgare: insights into stress response mechanisms and evolutionary dynamics.
Article in BMC plant biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Pre-anthesis light signaling of sheathed developing barley inflorescences defines floral fate.Journal of experimental botany · 2026Article
- The influence of combined carbon and nitrogen application on the growth and metabolism of Ilex rotunda.BMC plant biology · 2026Article
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9 authors.
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Abstract
backgroundChitinase, a key enzyme family within the pathogenesis-related (PR) protein, plays a crucial role in plant defense by degrading chitin, a major component of fungal cell walls. The HvCHT genes in barley are involved in responses to biotic and abiotic stresses, although their full range of functions is not yet fully understood.
resultsIn this study, we identified 24 potential HvCHT genes through a genome-wide analysis. The comparative synteny analysis showed conserved relationships between HvCHT genes and their homologs in Sorghum bicolor, Oryza sativa, and Arabidopsis thaliana. Chromosomal mapping, gene structure, characterization, protein motif analysis, and miRNA regulation were performed to gain insight into the genetic structures of these genes. Segmental duplication events observed in the HvCHT family suggest an important role in the evolutionary development of these genes. Additionally, cis-regulatory element analysis revealed the presence of light-responsive elements, and regulators for Abscisic acid, methyl jasmonate (MeJA), salicylic acid, and gibberellins, indicating potential involvement in stress responses. Transcriptomic data showed differential expression of HvCHT genes in response to salt stress, with distinct patterns observed in leaf and root tissues. Furthermore, the genes defensive responses to drought stress and Fusarium infection were characterized across multiple time points. Notably, qRT-PCR analysis confirmed the upregulation of HvCHT1, HvCHT4, and HvCHT17, highlighting their potential involvement in stress-related pathways.
conclusionThese findings provide a comprehensive overview of the HvCHT genes role in barley defense mechanisms, underlining their regulatory functions in biotic and abiotic stressors. The results lay the groundwork for future functional studies on HvCHT genes, with the potential to enhance stress tolerance in crops. CLINICAL TRIAL NUMBER: Not applicable.
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