Table 2.

Results for comparisons of evolutionary rates (only transversions) among pairs of repA sequences

Value in range	Taxon 1	Taxon 2	Taxon 3	K13–K23	z
Max	E. coli	Buchnera (Rp-1)	S. enteritidis	−0.464  ± 0.060	−7.805*
Min	E. coli	Buchnera (Gu-2)	Y. enterocolitica	−0.865  ± 0.152	−5.685*
	E. coli	Buchnera (Ps)	S. enteritidis	−0.560  ± 0.073	−7.618*
Max	Buchnera (Tg-1)	Buchnera (Ps)	E. coli	0.183  ± 0.121	1.515ns
Min	Buchnera (Sg-2)	Buchnera (Ps)	E. coli	−0.006  ± 0.108	−0.060ns
Max	Buchnera (Rp-1)	Buchnera (Tg-1)	E. coli	−0.303  ± 0.101	−2.993ns
Min	Buchnera (Sg-1)	Buchnera (Ts-1)	E. coli	0.000  ± 0.062	0.000ns

Four sets of comparisons are shown. The first two rows show the maximum (Max) and minimum (Min) deviations (z) from constancy of evolutionary rates between E. coli and Buchnera isolated from species other than P. spyrothecae. The next row shows the comparison between E. coli and Buchnera from P. spyrothecae. Rows 4 and 5 represent the extreme deviations in comparisons between Buchnera from P. spyrothecae and those from the remaining Buchnera species, and the last two rows show the extreme values among these. Significance of z values was obtained after application of Bonferroni's sequential correction procedure. Species names as in Fig. 1. 

ns, not significant; *, P < 0.001.