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. 2016 Sep 26;11(9):e0163482. doi: 10.1371/journal.pone.0163482

Fig 4. MDS2 Regressed onto Time and Treatment and Distances Within and Between Time and Treatment.

Fig 4

4a To test the global null hypothesis of independence for covariate variables (store, phyllo, enviro, and time-points: T0, T1, T2, T3) and associated response variables (MDS1 and 2), a conditional inference regression tree was modeled onto the data after nMDS scaling. For ordination component MDS2, the time at which the samples were collected determines their position in the ordination. 4b Distances between control and phyllosphere samples from the same time-point were significantly closer to each other than they were to treatment (environment) (P = 2e-16; Mann-Whitney).