Advances in root phenotyping: high-throughput imaging, computational tools and integrative approaches for crop improvement

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ID: 314897
2026
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Abstract
Climate change increasingly threatens global agriculture by intensifying abiotic stresses and destabilizing crop productivity, necessitating a deeper understanding of root-mediated traits governing resource acquisition and stress resilience. Here, we synthesize recent advances in root-centered plant phenomics, emphasizing how high-throughput phenotyping (HTP) enables high-resolution, scalable characterization of complex root traits and robust comparative analysis across diverse genotypes and environments. Innovations in multimodal imaging notably X-ray computed tomography (CT), magnetic resonance imaging (MRI), and machine learning-integrated rhizotrons facilitate detailed reconstruction of root system architecture and its temporal dynamics under both controlled and semi-field conditions. Furthermore, root phenotyping is increasingly interpreted within an integrated whole-plant framework. The integration of organ-specific assessments with physiological phenomics leveraging spectral and thermal data enables the characterization of developmental plasticity and root-mediated processes, including water-use dynamics, nutrient acquisition, and canopy stress responses under heterogeneous field conditions. These approaches link root traits such as rooting depth and spatial distribution to canopy-level physiological responses under stress. Despite these advances, significant bottlenecks persist in data interoperability, analytical scalability, and protocol standardization. Future progress will require integration of root phenomics with genomics, predictive modeling, and digital twin frameworks to improve resource-use efficiency, yield stability, and climate resilience in global cropping systems.
Reference Key
openalex_W7162321853 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Geunmuk Im, Jeongho Baek, Jinsu Kim, Song Lim Kim
Journal Journal of experimental botany
Year 2026
DOI
10.1093/jxb/erag246
URL
https://doi.org/10.1093/jxb/erag246
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