Figure 3

Relative expression levels of TaPHO2 genes in roots of the wild type and tapho2 mutant plants at seedling stage.
The plants were grown in the nutrient solution containing 20 μM Pi and the roots were used for gene expression analysis. (a) Overall relative expression levels of TaPHO2s; (b) Relative expression levels of TaPHO2-A1, TaPHO2-B1 and TaPHO2-D1. Error bars indicate SE (n = 5). ND, not detectable. Asterisks indicate the significance of differences between wild type and tapho2 mutants as determined by Student’s t test analysis: **P < 0.01, *P < 0.05.