Genic SNP markers and legume synteny reveal candidate genes underlying QTL for Macrophomina phaseolina resistance and maturity in cowpea [Vigna unguiculata (L) Walp.]

Table 5 Pair-wise analysis of the effect of QTL combinations on mean percent mortality between genotypic classes

QTL combination	- genotype			++ genotype			% reduction in mortality
	Mean % mortality	N	S.E	Mean % mortality	N	S.E
Mac-1/Mac-7	14.3	30	2.07	7.5	17	1.38	47.6
Mac-5/Mac-7	15.8	15	3.5	8.4	42	0.83	46.8
Mac-2/Mac-7	13.7	25	2.35	7.7	28	1.06	43.8
Mac-4/Mac-7	15.1	19	2.97	8.5	41	0.85	43.7
Mac-3/Mac-7	14.5	24	2.34	8.3	24	1.38	42.8
Mac-2/Mac-5	18.8	15	3.37	11.1	34	1.25	41.0
Mac-2/Mac-4	17.8	16	3.45	10.9	29	1.4	38.8
Mac-5/Mac-6	16.4	13	4.06	10.2	28	1.23	37.8
Mac-1/Mac-4	15.6	20	2.91	10	18	1.56	35.9
Mac-1/Mac-5	16.3	19	2.94	10.5	23	1.41	35.6
Mac-1/Mac-2	12.8	39	1.69	8.6	17	1.78	32.8
Mac-7/Mac-8	13.4	15	3.3	9.4	33	1.23	29.9 ns
Mac-3/Mac-5	14.5	16	3.2	10.2	35	1.17	29.7 ns
Mac-2/Mac-6	11.9	34	1.84	8.38	23	1.15	29.6
Mac-4/Mac-6	14.7	19	3.05	10.4	28	1.24	29.3
Mac-4/Mac-5	13.9	21	2.91	10	60	0.88	28.1
Mac-4/Mac-8	15.7	9	5.07	11.4	39	1.12	27.4 ns
Mac-6/Mac-7	13.9	34	1.9	10.2	33	1.22	26.6
Mac-3/Mac-4	13.1	25	2.25	10	37	1.07	23.7 ns
Mac-5/Mac-8	14.9	10	4.54	11.4	46	1.08	23.5 ns
Mac-1/Mac-6	13	39	1.69	10	11	2.01	23.1 ns
Mac-1/Mac-3	13.2	34	1.8	10.3	12	2.24	22 ns
Mac-2/Mac-3	12.3	29	1.9	9.8	23	1.51	20.3 ns
Mac-3/Mac-6	12.4	32	1.83	10.8	20	1.47	12.9 ns
Mac-1/Mac-8	11.2	22	2.3	10.1	17	1.61	9.8 ns
Mac-2/Mac-8	12.3	25	2.06	11.3	34	1.26	7.8 ns
Mac-6/Mac-8	10.4	24	2.18	11	28	1.39	-5.8 ns
Mac-3/Mac-8	10.6	18	2.31	11.3	28	1.35	-6.6 ns

(--) lack both favorable alleles; (++) carry both favorable alleles; N = number of RILs in each genotypic class; S.E. = standard error;
ns = not significant at the 0.05 probability level.

ISSN: 1471-2164