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

ABSTRACT: The starch and protein in rice grains determine their nutritional value, eating and cooking quality (ECQ), and potential applications as a biopolymer. Building on previously identified functional differences between two Thai indica cultivars, waxy RD6 and high-amylose RD57, we examined the transcriptional regulation of their storage polymers by profiling key starch-biosynthetic and storage-protein genes in developing endosperms at 7-, 14-, 21-, and 28-days post-anthesis (DPA). Major differentially expressed genes were cross-validated with enzymatic activities and grain starch and storage-protein composition. Transcriptome dynamics varied significantly between cultivars, and were predominant at 14 DPA, which coincided with the period of active expression of the starch biosynthetic genes, wh

SUBMITTER: Sangwongchai W 

PROVIDER: S-EPMC12657317 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature