Fig. 1

Principal Coordinates Analysis (PCoA) performed on Bray Curtis dissimilarities between samples of the bacterial, archaeal and fungal communities associated with wheat roots. Colours indicate root compartment; green = endosphere, blue = rhizosphere and pink = bulk soil. N = 3 replicate plants per treatment. A1, A2, A3 show PCoA for Plants cultivated at the Church Farm field studies site at the stem elongation growth phase. B1, B2 and B3 show data from plants after senescence. C1, C2 and C3 show comparisons between stem elongation growth phase (circles) and senescent plants (triangles). D1, D2 and D3 show comparisons between 4-week-old laboratory cultivated plants (circles) and stem elongation growth phase field cultivated plants (triangles). E1, E2 and E3 show PCoA comparing communities associated with plants cultivated under laboratory conditions in agricultural soil (circles), Levington F2 compost (triangles) or a 50:50 mix of the two (squares). F statistics, R² and P values from permanova anlyses are shown within the plots. Letters indicate the test variable, where C indicates compartment, D indicates growth phase, and S indicates soil type. Permutations = 999