Figure 2

Co-expression analysis of the AtPHT1 gene family in response to Pi supply. A hierarchical cluster analysis of AtPHT1 gene transcript patterns in roots (A) and shoots (B) of the 42-day-old Arabidopsis plants described in the legend to Figure 1 is shown. ∆∆C_t values generated from the results shown in Figure 1 using plant organs continuously supplied with Pi as a reference were analysed using Euclidean distance and complete linkage [33].