Table 2.

Test For Non-Random Chromosomal Distribution of Cluster Members Based on Analysis of All Clusters in a Genome

Domain Division Species χ2a df[ii] P [iii]
ArchaeaEuryarchaeota A. fulgidus 754.133946.77E-25
M. thermoautotrophicum 443.551941.38E-21
M. jannaschii 332.791921.23E-09
P. horikoshii 533.902582.2E-21
Crenarchaeota A. pernix 157.411284.0E-02
BacteriaAquificales A. aeolicus 307.941601.97E-11
Thermotogales T. maritima 354.701861.23E-12
Spirochaetales T. pallidum 145.31481.01E-11
Chlamydia group C. pneumoniae 270.18702.67E-25
Cyanobacteria Synechocystis sp. 800.464766.94E-19
Firmicutes B. subtilis 1623.138741.44E-47
M. pneumoniae 227.86921.61E-13
U. urealyticum 136.53505.82E-10
M. tuberculosis 1323.167006.90E-41
Proteobacteria E. coli 1227.997665.08E-24
H. influenzae 173.99881.33E-07
C. jejuni 276.121002.04E-18
H. pylori 278.281308.17E-13
R. prowazekii 68.24308.33E-05

[i] Value obtained by combining all p-values for individual clusters in a genome (see Methods).

[ii] Degrees of freedom = 2 *number of clusters in a genome.

[iii] Probability associated with the χ2 value and the degrees of freedom.