Table 3. Frequency of REP clusters within the SBW25 genome.
| Cluster Size | Number of occurrences | P-Value | ||
| Observeda | Expected (random model)b | ≤c | ≥d | |
| 1 | 267 | 832±22.24 | 1 | 0 |
| 2 | 431 | 181.4±11.12 | 0 | 1 |
| 3 | 26 | 44.3±6.1 | 0.9998 | 0.0009 |
| 4 | 12 | 13.1±3.42 | 0.6658 | 0.4537 |
| 5 | 1 | 4.38±1.96 | 0.9893 | 0.0615 |
| 6 | 6 | 1.67±1.03 | 0.0070 | 0.9989 |
| 7 | 5 | 0.66±0.65 | 0.0007 | 0.9999 |
| 8 | 5 | 0.31±0.46 | 0 | 1 |
| 9 | 3 | 0.14±0.35 | 0.0006 | 1 |
| 10 | 0 | 0.07±0.25 | 1 | 0.9364 |
| 11 | 0 | 0.04±0.18 | 1 | 0.9658 |
| 12 | 2 | 0.02±0.14 | 0 | 1 |
| Sum | 1422 | 1421.76 | ||
Data are the number of REPs occurring as clusters (from singlets to clusters of 12) in extragenic space compared to expectations from a null model based on the random assignment of 1,422 16-mers (to extragenic space) (see text).
a
Observed occurrences from the SBW25 genome.
b
Expected values (means and standard deviation) based on 10,000 simulations.
c
The proportion of times the observed frequency was less than or equal to the expected value.
d
The proportion of times the observed frequency was greater than or equal to the expected value.