Integrative Insights into Physiology, Nutrient Dynamics, and Multi-Omics Reveal Climate Stress Adaptation and Genomic Gaps in Rhododendron

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ID: 321582
2026
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Abstract
Rhododendron species are valued for their ecological, horticultural, and cultural importance and are increasingly threatened by climate-related stresses, including drought, frost, extreme heat, and nutrient imbalance. Over the past decade, physiological, biochemical, and nutrient-based studies, combined with the rapid expansion of transcriptomic, proteomic, metabolomic, and emerging epigenomic datasets, have provided new insights into stress-responsive pathways in this genus. However, these findings remain unevenly distributed across species and stress types and are rarely integrated across biological scales or linked directly to whole-plant performance. This review critically synthesizes recent advances in nutrient dynamics, mycorrhizal associations, hormonal regulation, and omics-based molecular responses underlying climate stress adaptation in Rhododendron. By integrating physiological traits with multi-omics evidence, we identify conserved regulatory modules, key metabolic and redox pathways, and trade-offs between growth and stress tolerance. We further highlight major genomic and experimental limitations, including taxonomic bias, short-term experimental designs, incomplete genome resources, and limited functional validation of candidate genes. Finally, future research priorities are proposed that emphasize integrative multi-omics approaches, genome-enabled functional studies, and systems-level modelling to advance climate-resilient Rhododendron conservation and breeding strategies. This synthesis provides a framework for translating molecular insights into horticultural and ecological applications under ongoing climate change.
Reference Key
openalex_W7169672587 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Hadiqa Anum, Ying Yang, Kang Yu, Lei Wang, Songheng Jin
Journal Annals of botany
Year 2026
DOI
10.1093/aob/mcag217
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