Table 1.

Genetic heterogeneity in the Mycoplasma synoviae sialic acid degradation locus^a.

	Strain
	K4907A	K5395B	WVU1853^T	K3344	FMT	53	MS178	MS173	Mean ± S.E.
Gene^b
nanI	0.78	0.61	0.57	0.61	0.61	0.82	0.61	0.61	0.65 ± 0.03
nanA	0.92	0.61	0.58	0.38	0.49	0.58	0.46	0.46	0.56 ± 0.06
nagA	0.64	0.55	0.55	0.73	0.55	0.55	0.46	0.46	0.56 ± 0.03
nanE	0.7	0.99	0.7	0.56	0.56	0.56	0	0	0.51 ± 0.12
nagB	0.42	0.42	0.56	0.56	0.71	0.28	0.14	0.14	0.40 ± 0.07
nagC	0.46	0.23	0.34	0.46	0.34	0.11	0.46	0.34	0.34 ± 0.04
Mean ± S.E.	0.65 ± 0.08	0.57 ± 0.10	0.55 ± 0.05	0.55 ± 0.05	0.54 ± 0.05	0.48 ± 0.10	0.36 ± 0.10	0.34 ± 0.09
16S rDNA^c	N/D^d	N/D^d	0.04	0.04	N/D^d	0.04	0.04	0.04	0.04

Nucleotide substitutions per 100 bases of consensus sequence.

nanI = sialidase MS53_0199 (synonymous with nanH of GenBank accession no. ABS50356); nanA = N-acetylneuraminate lyase; nagA = N-acetylglucosamine-6-phosphate deacetylase; nanE = N-acetylmannosamine-6-phosphate epimerase MS53_0197 (GenBank accession no. AAZ43616); nagB = glucosamine-6-phosphate deaminase; nagC = N-acetylmannosamine kinase.

Both copies.

N/D = not determined.