Transcriptional landscape of soybean (Glycine max) embryonic axes during germination in the presence of paclobutrazol, a gibberellin biosynthesis inhibitor.

摘要: Gibberellins (GA) are key positive regulators of seed germination. Although the GA effects on germination have been studied in a number species, little is known about transcriptional reprogramming modulated by during this phase species other than Arabidopsis thaliana. Here we report transcriptome analysis soybean embryonic axes presence paclobutrazol (PBZ), biosynthesis inhibitor. We found differentially expressed cell wall metabolism genes, supporting their roles expansion Several genes involved and signaling phytohormones were also modulated, indicating an intensive hormonal crosstalk at axis. 26 photosynthesis that up-regulated PBZ 24 hours after imbibition (HAI) down-regulated 36 HAI, which led us to suggest part strategy implement autotrophic growth program absence GA-driven mobilization reserves. Finally, 30 transcription factors (mostly from MYB, bHLH, bZIP families) likely downstream targets will drive changes