Fig. 2

Statistics of comparative protein expression analysis. a Multidimensional scaling (MDS) analysis of all biological replicate samples. b Illustration of the number of up- and downregulated proteins (p ≤ 0.05, Student’s t-test; 0.769 ≥ FC ≥ 1.3) in wild-type, pdr2 and lpr1lpr2 roots upon transfer from + Pi to –Pi (−/+), and the number of differentially regulated proteins in pairwise comparisons of the three genotypes under + Pi (+/+) or –Pi (−/−) conditions. c, d, and e Venn diagrams illustrating the number of regulated proteins in pairwise comparisons for all three genotypes under both growth regimes (see also Additional file 8: Table S7, Additional file 9: Table S8, Additional file 10: Table S9)