Transcriptomic analysis of peanuts under ambient and elevated CO2 across developmental stages

We conducted a comparative leaf transcriptomic analysis of peanut plants grown under ambient and elevated atmospheric CO2 in semiarid conditions. We developed high-resolution spatiotemporal gene expression profiles for peanut leaf from flowering to physiological maturity. Our results showed that we identified genes and transcription factors associated with carbon metabolism pathways, specifically photosynthesis-related pathways, including photorespiration and light reaction. The major carbohydrate metabolism-related pathways were also significantly influenced by elevated CO2 and drought. Our results highlight insights into the mechanistic basis of photosynthesis acclimation to elevated CO2 in peanuts across different developmental stages.