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Table 2.

Analysis of Polymorphisms in the rpoB and 16S Genes of Mycobacterium

Species		No. of Isolates		Total no. of polymorphic positions	Species-specific polymorphisms
Species		No. of Isolates		Total no. of polymorphic positions	polymorphism[i]	conserved polymorphisms[ii]
A. rpoB Gene
M. avium	15	63	5	0
M. chelonae	4	96	14	11
M. fortuitum	5	103	20	3
M. gordonae	14	108	33	1
M. intracellulare	13	60	5	2
M. kansasii	14	68	13	11
M. scrofulaceum	2	63	3	2
M. smegmatis	3	110	11	0
M. xenopi	13	72	13	13
B. 16S Gene
M. avium	15	14	2	1
M. chelonae	7	23	2	2
M. fortuitum	5	25	2	0
M. gordonae	14	24	5	3
M. intracellulare	12	18	2	2
M. kansasii	11	14	3	3
M. scrofulaceum	1	15	0	0
M. smegmatis	4	35	12	0
M. xenopi	13	24	7	6

[i] Polymorphisms found only in correspondingMycobacterium species.

[ii] Polymorphisms found in every isolate analyzed for thatMyobacterium species.