Table 1. High-throughput genome sequencing results of the rhizocompartment samples of the three leguminous plants.
| α-diversity index | OTU | Chao1 | Shannon | |
|---|---|---|---|---|
| Shrub species | Rhizocompartments | |||
| CM | r | 1086±63 b | 1682.23±32.65 b | 7.15±0.33 b |
| rs | 2300±224 a | 3244.72±306.22 a | 9.50±0.19 a | |
| rz | 2260±99 a | 3192.19±242.44 a | 9.33±0.33 a | |
| b | 2025.57±192 a | 3037.48±306.13 a | 9.33±0.22 a | |
| HM | r | 1436±191 c | 2133.36±105.03 c | 7.34±0.99 c |
| rs | 2340±148 a | 3098.14±117.83 a | 9.53±0.20 a | |
| rz | 2014±108 b | 2790.81±100.36 b | 9.08±0.05 b | |
| b | 2059±192 ab | 2842.44±127.15 b | 9.16±0.48 ab | |
| HS | r | 1319±126 c | 2101.61±143.51 c | 7.24±0.54 c |
| rs | 2374±161 a | 3309.04±130.52 a | 9.56±0.16 a | |
| rz | 1998±92 b | 3050.33±81.11 b | 9.10±0.07 b | |
| b | 2025.07±355 ab | 2863.53±150.19 b | 9.11±0.48 ab | |
| Fshrub species | 0.57 ns | 0.14 ns | 0.10 ns | |
| Frhizocompartments | 47.72 | 30.64 | 71.05 | |
| Fshrub species×rhizocompartments | 7.70 | 8.08 | 5.47 | |
Data are presented as mean ± standard deviation, n = 3. CM: Caragana microphylla; HM: Hedysarum mongolicum; HS: Hedysarum scoparium.
r: root; rs: rhizosphere soil; rz: root zone soil; b: inter-shrub bulk soil.
Different letters signify significant differences within species among four rhizocompartments (P < 0.05). ns: no significant difference.
The last three rows represent the F values of the interactions between plant species/rhizocompartment types (shrub species×rhizocompartments).