TABLE 2.

Results of PCR assays of all isolates with internal primer sets

Isolate	Sourcea	Result obtained with diagnostic primer setb based on:
		Region 1	Region 2	Region 3	Region 4
109	W	+	+	+	+
126	W	+	+	+	+
129	W	+	+	+	+
130	W	+	+	+	+
132	W	+	+	+	−
135	W	+	+	+	+
136	W	+	+	+	+
139	W	+	+	+	+
140	W	+	+	+	+
141	W	+	+	+	+
142	W	+	+	+	+
144	W	+	+	+	+
145	W	+	+	+	+
148	W	+	+	+	+
150	W	+	+	+	+
151	W	+	+	+	+
155	W	+	+	+	+
156	W	+	+	+	+
160	W	+	+	+	+
ATCC 35716	A	−	−	−	+
Mac 104	N	−	−	−	−
ATCC 19698	A	+	+	+	+

^aIsolate source: W, UWDL; N: University of Nebraska Barletta Laboratory; A, ATCC.

^bOutcome of PCR with primers derived from sequences of unique bands present on AFLP gels: +, presence of a PCR product; −, absence of a PCR product.