Table 2. Phylogenetic diversity and structure of the belowground fungal communities associated with roots of winter wheat (Triticum aestivum) collected from in conventional and organic farming systems.
| Farming system | ntaxa | mntd.obs | mntd.rand.mean | mntd.rand.sd | mntd.obs.rank | mntd.obs.z | mntd.obs.p | Runs | |
|---|---|---|---|---|---|---|---|---|---|
| Conventional | 19 | 0.65646923 | 0.58565766 | 0.0390507 | 9,656 | 1.81332398 | 0.9656 | 9,999 | Dispersed |
| Organic | 28 | 0.52514116 | 0.56577169 | 0.02433867 | 478 | −1.6693818 | 0.0478 | 9,999 | Clustered |
| ntaxa | mpd.obs | mpd.rand.mean | mpd.rand.sd | mpd.obs.rank | mpd.obs.z | mpd.obs.p | Runs | ||
| Conventional | 19 | 0.82247012 | 0.80006999 | 0.02666562 | 7,886 | 0.84003779 | 0.7886 | 9,999 | |
| Organic | 28 | 0.78209976 | 0.79920574 | 0.01630606 | 1,539 | −1.0490569 | 0.1539 | 9,999 |
Note:
The observed mean nearest phylogenetic taxon distance (MNTD) and mean phylogenetic distance (MPD), as well as the mean and standard deviation of 9,999 randomly generated communities, are given. The significance (p-values) of the MNTD and MPD values of samples was calculated with the ‘picante’ package in R (Kembel et al., 2010) by comparing the values with those of random communities.