TABLE 2.

SPO1 intron homing is a gene conversion event

Phage cross	Host	No.	Distribution of genetic markers in progenya
			sus14,I+	wt14,ΔI	wt14,I+	sus14,ΔI	I+	ΔI	sus14	wt14
SPO1sus14 × SPO1ΔI	None	1	54	46	0	0	54	46	54	46
		2	41	59	0	0	41	59	41	59
		3	34	66	0	0	34	66	34	66
	Sup−	1	52	15	32	1	84	16	53	47
		2	49	10	40	1	89	11	50	50
		3	44	5	51	0	95	5	56	44
	Sup+	1	58	3	33	0	91	8	58	41
		2	52	3	45	0	97	3	52	48
		3	43	4	53	0	96	4	43	57
SPO1(sus14,I-HmuIoc) × SPO1ΔI	None	1	47	53	0	0	47	53	47	53
		2	35	65	0	0	35	65	35	65
	Sup−	1	28	53	11	6	37	59	36	64
		2	41	47	5	7	46	54	48	52
	Sup+	1	53	7	40	0	93	7	53	47
		2	47	6	46	1	93	7	48	52
SPO1 × SPO1(sus14,ΔI)	None	1	0	0	65	35	65	35	35	65
		2	0	0	48	52	48	52	52	48
	Sup−	1	31	0	69	0	100	0	31	69
		2	33	0	65	2	98	2	35	65
	Sup+	1	30	2	65	3	95	5	33	67
		2	32	0	65	3	97	3	35	65
SPO1I-HmuIoc × SPO1(sus14,ΔI)	None	1	0	0	69	31	69	31	69	31
		2	0	0	55	45	55	45	55	45
	Sup−	1	8	6	50	36	58	42	56	44
		2	6	9	43	41	49	50	47	42
	Sup+	1	34	0	62	4	96	4	62	38
		2	29	1	67	3	96	4	68	32

^awt14 indicates wild-type gene 14. I+ and ΔI indicate the presence or absence of introns, respectively.