Temporal transcriptional networks coordinate ABA-GA-JA crosstalk during cold-induced modulation of seed dormancy and germination in wheat (Triticum aestivum L.).

Cold-induced modulation of seed dormancy and germination in wheat involves a complex transcriptional network coordinating ABA, GA, and JA crosstalk, with specific gene families regulating these processes.

• Why it matters: Understanding how hormonal interactions control seed dormancy and germination is crucial for improving crop resilience and yield under cold stress conditions, addressing a significant agricultural challenge.
• What they did: The study employed genome-wide transcriptome analysis, targeted hormonome profiling, and pharmacological methods to identify distinct gene expression patterns and hormonal interactions during cold treatment and imbibition at optimal temperature.
• The result: Findings reveal that hormonal crosstalk, especially JA-GA synergy and ABA antagonism, regulates dormancy release and germination, providing insights into genetic targets for enhancing cold tolerance in wheat seeds.