Table 1.

Ten highest ranking bacterial strains based on Mahalanobis distance and δ-distance for plasmid pXO1 from B. anthracis str. Ames Ancestor

Bacterial strain	Phylum	D2	P(D2)	δ	P(δ)
Sorted by Mahalanobis distance
Bacillus cereus ATCC 14579	Firmicutes	2.17	0.994	47.5	0.517
Bacillus thuringiensisstr. Al Hakam	Firmicutes	2.83	0.987	50.6	0.415
Bacillus cereus E33L	Firmicutes	2.86	0.986	50.0	0.415
Bacillus thuringiensis serovar konkukian str. 97-27	Firmicutes	2.91	0.989	51.0	0.423
Bacillus anthracis str. Ames Ancestora	Firmicutes	3.26	0.988	52.2	0.379
Bacillus cereus ATCC 10987	Firmicutes	3.42	0.977	50.9	0.406
Bacillus cereus subsp. cytotoxis NVH 391-98	Firmicutes	4.44	0.960	59.2	0.226
Lactobacillus salivarius UCC118	Firmicutes	5.43	0.926	50.8	0.378
Staphylococcus epidermidis RP62A	Firmicutes	5.72	0.887	55.5	0.306
Staphylococcus epidermidis ATCC 12228	Firmicutes	7.03	0.858	57.3	0.216
Sorted by δ-distance
Nostoc sp. PCC 7120	Cyanobacteria	53.01	0.018	41.7	0.440
Anabaena variabilis ATCC 29413	Cyanobacteria	62.56	0.012	42.7	0.429
Buchnera aphidicola str. APS (Acyrthosiphon pisum)	Proteobacteria	19.64	0.211	43.1	0.523
Bacillus cereus ATCC 14579	Firmicutes	2.17	0.994	47.5	0.517
Bacillus cereus E33L	Firmicutes	2.86	0.986	50.0	0.415
Bacillus thuringiensis str. Al Hakam	Firmicutes	2.83	0.987	50.6	0.415
Lactobacillus salivarius UCC118	Firmicutes	5.43	0.926	50.8	0.378
Bacillus cereus ATCC 10987	Firmicutes	3.42	0.977	50.9	0.406
Bacillus thuringiensis serovar konkukian str. 97-27	Firmicutes	2.91	0.989	51.0	0.423
Bacteroides fragilis NCTC 9343	Bacteroidetes	9.91	0.711	51.2	0.297

D², Mahalanobis distance; P(D²), P-value based on Mahalanobis distance; δ, δ-distance; P(δ), P-value based on δ-distance.

^aKnown host.

The P-values are not completely negatively correlated with the distances because they are based on empirical distributions that differ between bacterial chromosomes.