Fig. 5. The impact of elevated CO₂ on DNR1-regulated abundances of photosynthetic genes in japonica variety Zhonghua 11 (ZH11) and its dnr1 mutants mimicking the indica DNR1 allele.

Shoot mRNA abundances of OsPsaB1 (a), OsPsaB2 (b), OsRbcS1 (c), OsRbcS2 (d), OsRbcS3 (e), and OsSBPase (f) grown ambient CO₂ (aCO₂) and elevated CO₂ (eCO₂) conditions, respectively, relative to Zhonghua 11 under aCO₂ (set to 1). Data are mean ± s.e.m. (n = 3 biological replicates). P-values were generated from two-way ANOVA. Different letters indicate significant differences among treatments (P < 0.05). OsPsaB (g), OsRbcS (h) and OsSBPase (i) protein abundances in shoots. HSP82 serves as a loading control. The red arrows indicate the OsPsaB, OsRbcS and OsSBPase bands, respectively. Data are representative of three independent experiments, with similar results. Source data are provided as a Source Data file.