Evidence for symmetric chromosomal inversions around the replication origin in bacteria

Table 1 Whole-genome DNA alignments using MUMmer

Organism 1	Organism 2	Total	Matches	Probability^*
		MUMs	within
			diagonal
			(10%)
V. cholerae	E. coli	459	177	4.7 ± 10^-59
V. cholerae (rev)	E. coli	467	217	1.8 ± 10^-90
V. cholerae (rev)	V. cholerae	342	86	8.2 ± 10^-16
E. coli (rev)	E. coli	1,128	225	1.5 ± 10^-23
S. pyogenes	S. pneumoniae	706	259	4.5 ± 10^-80
S. pyogenes (rev)	S. pneumoniae	626	255	2.3 ± 10^-90
S. pyogenes (rev)	S. pyogenes	367	96	1.1 ± 10^-18
S. pneumoniae (rev)	S. pneumoniae	1,054	154	1.5 ± 10^-6
M. leprae (rev)	M. leprae	449	89	3.5 ± 10^-10
M. tuberculosis (rev)	M. tuberculosis	2,476	268	0.092
E. coli	M. tuberculosis	81	13	0.06
E. coli (rev)	M. tuberculosis	70	5	0.84

^*Statistical significance was estimated as described in the text; rev, reverse complement sequence.

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