Table 3. Summary Statistics and Kruskal-Wallis Tests for Differences in EV by Class.
| Grouping | Ploidy | N (Class I) | N (Class II) | Mean (SD) Class I | Mean (SD) Class II | X2 | df | P |
|---|---|---|---|---|---|---|---|---|
| GO | Diploid | 174 | 190 | 0.274 (0.072) | 0.230 (0.055) | 33.396 | 1 | 7.52 × 10−09 |
| Tetraploid | 174 | 190 | 0.304 (0.102) | 0.260 (0.062) | 16.007 | 1 | 6.31 × 10−05 | |
| All | 174 | 190 | 0.291 (0.087) | 0.247 (0.056) | 23.605 | 1 | 1.18 × 10−06 | |
| AraCyc | Diploid | 26 | 37 | 0.292 (0.084) | 0.228 (0.060) | 9.01 | 1 | 0.0027 |
| Tetraploid | 26 | 37 | 0.326 (0.124) | 0.251 (0.058) | 6.11 | 1 | 0.0135 | |
| All | 26 | 37 | 0.312 (0.101) | 0.238 (0.056) | 8.43 | 1 | 0.0037 | |
| Gene families | Diploid | 77 | 501 | 0.327 (0.167) | 0.224 (0.123) | 30.16 | 1 | 3.98 × 10−8 |
| Tetraploid | 77 | 501 | 0.356 (0.175) | 0.247 (0.133) | 31.495 | 1 | 2.00 × 10−8 | |
| All | 77 | 501 | 0.344 (0.162) | 0.238 (0.110) | 34.276 | 1 | 4.78 × 10−9 | |
| Diploid | 5228 | 398 | 0.247 (0.141) | 0.202 (0.104) | 36.44 | 1 | 1.57E-09 | |
| Tetraploid | 5228 | 398 | 0.260 (0.169) | 0.252 (0.112) | 4.2141 | 1 | 0.04009 | |
| All | 5228 | 398 | 0.253 (0.145) | 0.228 (0.090) | 2.1145 | 1 | 0.1459 |
Summary statistics and Kruskal-Wallis tests for differences in expression variance (EV) by class for GO, metabolic pathways (AraCyc), Tasdighian et al. (2017) orthogroups (gene families), or Dong et al. (2019) structure-based protein-protein interactions (S-PPI). N, number of functional groups included in the analysis.