TABLE 2.

Horizontal cotransmission of the S phenotype and the putative viral marker^a

Donor			One generation after transfer (emerging F1)			Later after transfer
Lineb	Phenotype (n)c	No. of positive PCR tests/no. of individuals tested	No. of females tested	PCR results	n	No. of generations	Phenotypec	No. of positive PCR tests/no. of individuals tested
G9	3.3 ± 0.75 (6)	3/3d	3	+	1	15	3.60 ± 0.33	4/4e
				−	2
G10	3.9 ± 0.52 (6)	3/3d	11	+	6	15	3.35 ± 0.22	5/5e
				−	5
G11	5.3 ± 0.81 (6)	3/3d	3	+	0
				−	3
G12	5.7 ± 1.17 (6)	3/3d	2	+	2	15	3.31 ± 0.30	5/5e
				−	0
G13	7.1 ± 1.25 (6)	3/3d	5	+	0
				−	5
G14	7.2 ± 0.61 (6)	3/3d	14	+	0
				−	14
G15	8 ± 1.62 (6)	3/3d	4	+	2	15	2.68 ± 0.34	5/5e
				−	2
G16	9.3 ± 1.93 (6)	3/3d	6	+	3	15	3.55 ± 0.12	5/5e
				−	3
G17	11.9 ± 1.80 (6)	3/3d	6	+	3	15	3.57 ± 0.07	5/5e
				−	3
G18	5.88 ± 1.51 (5)	18/18e	21	+	3	4	2.51 ± 0.11	9/9e
				−	18
Ep1	6.48 ± 0.89 (5)	4/4e	5	+	1	4	2.19 ± 0.07	9/9e
				−	4
Ep2	8.18 ± 1.05 (5)	11/11e	10	+	0
				−	10
P2	2.89 ± 0.72 (6)	18/18e	18	+	7	4	2.29 ± 0.10	9/9e
				−	11

^aThe recipient lines were founded by females belonging to the NS_ref line. In each case before transfer the recipient had the NS phenotype (1.1 ± 0.01 parasitic larvae per parasitized host), and a PCR was negative.

^bThe donor lines were S phenotype lines from different geographical areas. G9 to G18, Gotheron lines; Ep1 and Ep2, Epinouze lines; P2, Palma de Mallorca line.

^cThe phenotype is expressed as the number of parasitic larvae per parasitized host (mean ± standard error).

^dUniplex PCR.

^eMultiplex PCR.