Integrated transcriptome-metabolome analysis reveals a GmMYB093-GmCYP90A1-BR module supporting soybean adaptation to iron deficiency.
The GmMYB093-GmCYP90A1-BR module enhances soybean adaptation to iron deficiency by regulating key physiological and molecular responses.
- Why it matters: Iron deficiency severely hampers soybean growth, nodulation, and yield, yet the regulatory mechanisms behind low-Fe tolerance are not well understood, limiting breeding efforts.
- What they did: Researchers evaluated 62 soybean accessions, identified tolerant and sensitive cultivars, and performed integrated transcriptomic and metabolomic analyses, focusing on root-nodule complexes and leaves.
- The result: The study revealed that the GmMYB093-GmCYP90A1-BR module promotes Fe homeostasis, redox balance, and nodule development, enabling improved low-Fe tolerance and offering targets for breeding Fe-efficient soybeans.