TABLE 2.

Titer and mean recombination frequency at 18 h p.i. after coinfection at an MOI of 5 for each virus

Viruses coinfecteda	Titer (PFU/ml)	Total no. of plaques and phenotype				Mean recombination frequencyb (%) ± SD
		polh−		polh+
		lacZ−	lacZ+	lacZ−	lacZ+
A:B (12.1)	2.7 × 106	260	57	84	304	20.0 ± 1.9
A:C (24.7)	3.1 × 106	227	76	108	262	27.3 ± 4.3
A:D (38.8)	1.7 × 106	250	89	108	180	31.0 ± 6.2
A:E (54.2)	2.5 × 106	261	102	139	235	32.9 ± 4.2
A:F (61.7)	2.2 × 106	336	71	99	116	27.3 ± 1.6
A:G (58.7)	2.7 × 106	250	88	110	258	28.3 ± 2.6
A:H (50.4)	2.4 × 106	401	68	187	74	35.0 ± 2.2
A:I (37.1)	2.2 × 106	305	83	94	182	26.6 ± 5.6
A:J (26.5)	2.0 × 106	337	98	122	201	28.9 ± 1.6
A:K (9.7)	2.9 × 106	239	119	117	192	35.4 ± 1.7
A:L (1.4)	2.6 × 106	445	14	5	239	2.7 ± 0.6

^aThe numbers in parentheses indicate the closest distance between the markers in kilobases.

^bThat is, [(polh⁻ lacZ⁺ + polh⁺ lacZ⁻) ÷ (polh⁻ lacZ⁻ + polh⁻ lacZ⁺ + polh⁺ lacZ⁻ + polh⁺ lacZ⁺)] × 100%.