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Integrating Transcriptome and Metabolome for Seed Quality Improvement in Common Bean 


Legume Genomics and Genetics, 2025, Vol. 16, No. 4
Received: 20 May, 2025 Accepted: 05 Jul., 2025 Published: 20 Jul., 2025
Common bean (Phaseolus vulgaris L.) is a cornerstone protein and micronutrient source worldwide, yet improving its multifaceted seed quality traits has outpaced the capabilities of conventional breeding; to address this gap, we synthesize advances from integrating transcriptome and metabolome datasets for trait dissection. We first delineate nutritional attributes-protein, starch, and micronutrients-alongside anti-nutritional and functional metabolites such as tannins, phytates, polyphenols, and processing-related traits including cooking time, texture, flavor; we then review gene-expression dynamics during seed maturation, regulatory networks controlling nutrient deposition, and key transcription factors, in parallel with metabolomic profiles of primary and secondary metabolites and their environmental modulation; subsequently, we detail integrative strategies that correlate expression patterns with metabolite accumulation, employ network and pathway-level models, and nominate candidate biomarkers linked to quality; a comparative case study synthesizes landmark multi-omics investigations, highlighting recurrent pathways-cell-wall remodeling, amino-acid biosynthesis, phenylpropanoid metabolism-while distilling methodological lessons on sampling windows, normalization and batch control, and integration models that bolster interpretability; finally, we examine technical hurdles in data variability and metabolite identification, biological complexities from genotype × environment interactions, and opportunities for machine learning-driven predictive modeling. In summary, integrative omics has matured into a practical toolkit for prioritizing biomarkers and causal pathways that can accelerate marker-assisted and genomic selection; we anticipate near-term translation of multi-omics signals into breeding pipelines via robust, ML-enabled prediction and decision support, and a shift toward pan-omics and precision breeding to sustainably elevate common-bean seed quality under diverse environments.
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. Deming Yu

. Qishan Chen

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