Mapping quantitative trait loci (QTL) in sheep. I. A new male framework linkage map and QTL for growth rate and body weight

Table 3 Summary of QTL results for body weights at weeks 2, 43, 56, 83, and 98

Body Weight Trait	OAR	LOD with Ranked P-value#	QTL Position	Closest Marker	Std QTL Effect for Female	Std QTL Effect for Male	Sex × QTL Interaction P-value	1-LOD Support Interval
BW02	NS
BW43	1	2.13*	117	BM4129	0.077	0.596	0.037	95.5 – 150.5
	3	2.84*	29	OARCP34	-0.145	0.722	0.001	12.0 – 55.0
	6	3.90***	63	OARHH55	0.187	0.749	0.025	43.9 – 82.9
	11	2.25*	55	BM17132	0.248	0.703	0.115	40.3 – 95.3
	21	2.31*	29	CSSM13	0.063	0.532	0.306	7.0 – 78.0
	24	3.26**	85	DIK2568	-0.150	0.584	0.002	73.1 – 98.1
BW56	3	3.32***	42	OARCP34	-0.140	0.665	0.0007	18.0 – 54.0
	6	3.45***	62	OARHH55	0.263	0.687	0.113	40.9 – 80.9
	11	3.56***	55	BM17132	0.338	0.824	0.077	42.3 – 68.3
	21	3.44***	27	CSSM13	0.047	0.667	0.010	8.0 – 36.0
	24	2.91**	85	DIK2568	-0.126	0.553	0.008	67.1 – 98.1
BW83	1	2.48*	357	BMS1789	-0.010	-0.629	0.011	348.5 – 375.5
	3	3.11***	42	OARCP34	-0.098	0.665	0.006	20.0 – 54.0
	6	3.53***	60	OARHH55	0.382	0.626	0.355	38.9 – 75.9
	11	4.03***	55	BM17132	0.348	0.898	0.047	43.3 – 67.3
	21	3.79***	29	CSSM13	0.083	0.677	0.008	12.0 – 35.0
	24	3.06***	85	DIK2568	-0.103	0.587	0.005	71.1 – 97.1
	26	2.11*	63	OARJMP23	0.042	0.480	0.038	50.0 – 62.5
BW98	11	3.10***	29	HEL10	NA	0.870	NA	29.3 – 46.3
	23	2.15*	71	URB0031	NA	0.843	NA	22.5 – 83.0

BWxx is the body weight at week xx; models fitted are of the form 'Sex + QTL + Sex.QTL', except for week 98 (wethers only) for which the model was 'QTL' only; P-values were obtained from likelihood ratio tests (LRT) with 2 df (testing QTL + Sex.QTL) or 1 df (QTL only, in Week 98); these P-values were adjusted for false discovery using the method outlined in Benjamini and Hochberg [42] with *P < 0.05, **P < 0.001, ***P < 0.005, ****P < 0.0001; standardized QTL effects are expressed as the estimated effect difference (Awassi – Merino) relative to the estimated residual standard deviation

ISSN: 1297-9686