Table 2.
Distribution of groups of housekeeping genes among the four libraries
| IRUF | IR24H | IR4D | IR7D | ||||||||||||
| p | p | p | p | ||||||||||||
| Name of group | Contigs | EST | Obs | Exp | IRUF/IR24H | Obs | Exp | IR24/IR4D | Obs | Exp | IR4D/IR7D | Obs | Exp | ALL | |
| Metabolism energy | 72 | 184 | 19 | 47.25 | 0.000 | 28 | 48.13 | 0.000 | 60 | 46.37 | 0.000 | 77 | 42.26 | 0.000 | |
| Protein synthesis – ribosomal proteins | 82 | 166 | 49 | 42.63 | 0.293 | 46 | 43.42 | 0.240 | 49 | 41.83 | 0.005 | 22 | 38.12 | 0.018 | |
| Protein modification and degradation | 32 | 36 | 5 | 9.24 | 0.069 | 13 | 9.42 | 0.222 | 8 | 9.07 | 0.484 | 10 | 8.27 | 0.275 | |
| Protein synthesis | 11 | 27 | 8 | 6.93 | 0.381 | 5 | 7.06 | 0.252 | 9 | 6.80 | 0.332 | 5 | 6.20 | 0.630 | |
| Transcription mechanism | 21 | 24 | 9 | 6.16 | 0.238 | 7 | 6.28 | 0.378 | 4 | 6.05 | 0.292 | 4 | 5.51 | 0.470 | |
| Signal transduction | 20 | 20 | 8 | 5.14 | 0.025 | 1 | 5.23 | 0.058 | 6 | 5.04 | 0.640 | 5 | 4.59 | 0.151 | |
| Metabolism carbohydrates | 14 | 17 | 1 | 4.37 | 0.047 | 2 | 4.45 | 0.001 | 11 | 4.28 | 0.001 | 3 | 3.90 | 0.002 | |
| Cytoskeleton related proteins | 10 | 14 | 4 | 3.59 | 0.782 | 4 | 3.66 | 0.405 | 2 | 3.53 | 0.356 | 4 | 3.22 | 0.816 | |
| Intracellular trafficking mechanism | 12 | 12 | 1 | 3.08 | 0.113 | 5 | 3.14 | 0.045 | 6 | 3.02 | 0.017 | 0 | 2.76 | 0.041 | |
| Nuclear structure related proteins | 10 | 12 | 4 | 3.08 | 0.475 | 4 | 3.14 | 0.207 | 1 | 3.02 | 0.241 | 3 | 2.76 | 0.594 | |
| Metabolism | 6 | 8 | 2 | 2.05 | 0.450 | 1 | 2.09 | 0.450 | 2 | 2.02 | 0.391 | 3 | 1.84 | 0.726 | |
| Metabolism – aminoacids | 6 | 8 | 2 | 2.05 | 0.148 | 0 | 2.09 | 0.044 | 4 | 2.02 | 0.161 | 2 | 1.84 | 0.253 | |
| Metabolism – lipids | 7 | 8 | 2 | 2.05 | 0.941 | 2 | 2.09 | 0.473 | 1 | 2.02 | 0.264 | 3 | 1.84 | 0.739 | |
| Cell Cycle | 4 | 5 | 0 | 1.28 | 0.107 | 0 | 1.31 | 0.187 | 2 | 1.26 | 0.064 | 3 | 1.15 | 0.110 | |
| Metabolism – nucleic acids | 5 | 5 | 1 | 1.28 | 0.242 | 0 | 1.31 | 0.054 | 3 | 1.26 | 0.120 | 1 | 1.15 | 0.284 | |
| Metabolism – ionts | 4 | 4 | 1 | 1.03 | 0.306 | 0 | 1.05 | 0.026 | 3 | 1.01 | 0.028 | 0 | 0.92 | 0.116 | |
P values show significance of expression difference between two libraries; P – ALL shows which contig has random and non-random distribution. Significant values are (P ≤ 0.05) are marked in bold. Obs – observed, Exp – expected.