TABLE 4.

The average effect of each QTLR on survival time in days and inferred type and dominance status of the resistance/susceptibility allele at the QTL for line 2, line 1, and the F₁ cross between them

QTLR	BC-1	BC-2	Comb	IA	Line 2	Line 1	Cross
1-II	ND	−10.60	ND	−1.39	s	R	Rs
1-IV	(3.73)	10.13	6.93	(7.37)	r	S	rS
2-II	(2.83)	8.66	5.74	(5.66)	r	S	rS
3-I	−14.47	ND	ND	(−12.70)	S	r	rS
3-III	−10.43	9.48	(−1.72)	0.98	R	S	RSa
4-II	(1.77)	−8.60	−3.41	(−2.52)	s	R	Rs
5-I	6.68	(−1.34)	2.67	(2.09)	R	s	Rs
5-III	−9.65	(2.54)	(−3.56)	−2.52	S	r	rS
7-II	(−1.14)	−7.60	−4.37	−7.56	s	R	Rs
8-II	(2.98)	11.17	9.78	8.78	r	S	rS
9-II	(−1.61)	10.49	4.52	5.45	r	S	rS
15-II	8.30	2.95	6.40	6.41	R	s	Rs
Z-I	10.40	7.28	9.13	(13.75)	R	S	Rb/S
Z-II	6.45	5.44	5.95	(6.77)	R	S	Rb/S
Z-IV	1.56	13.97	7.77	(8.78)	R	S	Rb/S
Sum S	−6.20	44.38	51.85	10.15	10R/5S	5R/10S	8R/6Sb 5R/9S
Sum A	7.40	53.98	45.84	39.36

Effects calculated using a weighted D-value for BC-1, BC-2, and combined crosses (Comb) or an estimated D-value obtained from the interval analysis (IA) as described in the text are shown. ND, not done; Sum S, sum of estimated effects on survival time of significant QTLR; Sum A, sum of estimated effects on survival time of all QTLR. Inferred allele type and dominance status: line 2, line 2 allele: R, r, resistance alleles, dominant or recessive, respectively; S, s, susceptibility alleles, dominant or recessive, respectively. Line 1, line 1 allele. Cross, inferred genotype of the cross of the two pure lines. Values in parentheses were not significant for that test in that cross.

^aDominance status in cross cannot be inferred from dominance status in the BCs.

^bStatus of locus depends on direction of cross. R, if male is line 2; S, if male is line 1.