Characterization of pig tonsils as niches for the generation of Streptococcus suis diversity

Table 1 MLST analysis, cps type and profiles of virulence-associated genes of the 92 S. suis isolates

Clonal complex (CC)	Sequence type (ST)	No. of isolates	cps type	mrp	epf	sly
S. suis isolates from vegetations of porcine endocarditis
1	1	7	2	+, −	+	+
1	1526^a	1	2	−	+	+
28	28	34	2, UT	+	−	−
S. suis isolates from porcine tonsils
1	1526^a	3	2	−	+	+
28	28	8	2	+	−	−
28	117	4	3	***	−	−
13	13	1	14	−	−	+
17	17	3	4	S	*	+
87	87	1	8	−	−	+
87	1528^a	1	8	−	−	+
94	108	1	5	+	−	+
	1529^a	1	7	+	−	+
	1679^a	1	4	+	−	+
Not assigned^b	54	1	3	−	−	+
	664	1	16	−	−	−
	1527^a	1	9	−	−	−
	1531^a	1	UT	*	−	+
	1532^a	1	31	−	−	−
	1533^a	2	UT	−	−	+
	1534^a	1	UT	***	−	+
	1535^a	1	15	***	−	+
	1536^a	1	11	*	*	+
	1538^a	1	16	−	−	−
	1539^a	1	UT	−	*	+
	1678^a	1	12	***	−	+
	1680^a	1	12	*	−	+
	1682^a	1	UT	+	−	+
	1683^a	1	UT	*	−	+
	1684^a	1	31	−	−	−
	1685^a	1	10	−	−	−
Singleton^c	1524^a	1	16	−	−	−
	1525^a	1	UT	−	−	−
	1530^a	1	UT	−	−	−
	1537^a	1	31	−	−	−
	1675^a	1	31	−	−	−
	1676^a	1	5	−	−	−
	1677^a	1	11	*	−	−
	1681^a	1	31	−	−	−

Variants of mrp are shown as *** (2400 bp), * (1556 bp), and S (747 bp). A large-size variant of epf is shown as *.
^aNovel STs.
^bSingle- to triple-locus variants of other STs; however, clonal complex could not be assigned.
^cMore than 4 loci were different from other STs.

ISSN: 1297-9716