Unveiling distinct storage composition and starch properties in developing indica rice grains via transcriptional profiling and enzymatic activity analysis

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expression ratio was higher in RD57, which correlated with its higher amylose content and associated differences in starch properties compared to RD6. Gene co-expression network analysis identified potential regulators of these pathways, including transcription factors bZIP10-like and bZIP44-like, and the energy signaling SnRK2.10-like kinase. Binding motif predictions indicated a bZIP10-like and bZIP44-like association with several starch genes, warranting further investigation as potential targets for improving rice starch. Collectively, this study provides a comprehensive understanding of the regulation of storage biomolecule biosynthesis in the previously understudied indica rice, laying the groundwork for breeders to develop new varieties with improved ECQ and health-beneficial traits for users in the food and biomaterial industries.

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