Mapping Quantitative Trait Loci (QTL) in sheep. III. QTL for carcass composition traits derived from CT scans and aligned with a meta-assembly for sheep and cattle carcass QTL

Cavanagh, Colin R; Jonas, Elisabeth; Hobbs, Matthew; Thomson, Peter C; Tammen, Imke; Raadsma, Herman W

doi:10.1186/1297-9686-42-36

Genetics Selection Evolution

Table 2 Summary of QTL for carcass traits using QTL-MLE

From: Mapping Quantitative Trait Loci (QTL) in sheep. III. QTL for carcass composition traits derived from CT scans and aligned with a meta-assembly for sheep and cattle carcass QTL

OAR	Trait	QTL [cM]	1-LOD support interval [cM]	Marker closest to peak	Lower marker	Upper marker	LOD score	QTL effect(SD)
1	Carcass bone	261	220 - 277	CSSM4	MAF64	INRA011	2.1**	0.56
1	Carcass lean	293	238 - 314	INRA011	CSSM4	BM6506	2.2**	0.69
1	Percent fat in carcass	296	228 - 324	INRA011	CSSM4	BM6506	1.8*	-0.60
1	Percent lean in carcass	299	253 - 323	BM6506	INRA011	BMS4045	2.2**	0.68
2	Carcass weight	294	284 - 309	MCM554	CSSM045	ARO28	2.5**	0.60
2	Final body weight	294	280 - 318	MCM554	CSSM045	ARO28	1.9*	0.51
3	Internal fat	155	144 - 175	BM827	BM304	EPCDV25	2.1**	0.57
6	Internal fat	8	5 - 32	OARCP125	OARCP125	MCM204	1.7*	0.50
6	Percent fat in carcass	10	5 - 50	OARCP125	OARCP125	MCM204	2.0**	0.57
6	Percent lean in carcass	13	5 - 52	OARCP125	OARCP125	BM1329	2.4**	-0.64
6	Total fat	15	5 - 42	OARCP125	OARCP125	BM1329	2.0**	0.61
6	Carcass fat	16	5 - 61	OARCP125	OARCP125	BM1329	1.8*	0.56
6	Carcass weight	75	60 - 91	OARHH55	BM1329	OARJMP1	2.8**	0.64
6	Final body weight	76	62 - 91	OARHH55	BM1329	OARJMP1	2.8**	0.64
7	Eye muscle area	51	29 - 70	BMS528	BM3033	MCM223	3.4***	-0.99
9	Carcass lean	116	95 - 154	BMS1304	MAF33	BM4513	1.7*	0.51
10	Carcass fat	112	101 - 112	OARDB3	TGLA441	OARDB3	2.1**	0.68
10	Percent fat in carcass	112	98 - 112	OARDB3	TGLA441	OARDB3	2.3**	0.71
10	Percent lean in carcass	112	81 - 112	OARDB3	TGLA441	OARDB3	1.8*	-0.62
11	Carcass weight	92	79 - 107	EPCDV23	BM17132	ETH3	3.1***	0.64
11	Final body weight	88	75 - 107	EPCDV23	BM17132	ETH3	2.5**	0.62
14	Carcass fat	29	14 - 54	CSRD270	TGLA357	MCM133	1.8*	-0.53
14	Dressing percentage	33	14 - 56	CSRD270	TGLA357	MCM133	2.38**	-0.57
14	Total bone	36	14 - 57	CSRD270	TGLA357	MCM133	1.7*	-0.47
16	Final body weight	32	1 - 60	OARCP99	BM1225	TGLA126	1.8*	-0.58
16	Percent lean in carcass	113	95 - 121	MCM150	DIK4612	DIK2269	1.8*	-0.48
16	Subcutaneous fat area	62	38 - 75	BMS2361	TGLA126	BM4107	3.5***	0.73
23	Percent lean in carcass	14	3 - 45	MCMA1	BL006	MAF35	1.7*	0.57
23	Total fat	25	8 - 38	MCMA1	BL006	MAF35	2.5**	-0.61

Shown are the relative positions and the confidence interval (CI) along the 1 male distance map [26], P-values were obtained from likelihood ratio tests (LRT) with 1 df (QTL only); * 1.75 ≤ LOD < 2.0, ** 2.0 ≤ LOD < 3.0, *** LOD ≥ 3.0; standardised QTL effects (SD) are expressed as the estimated effect difference (Awassi - Merino) relative to the estimated residual standard deviation

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ISSN: 1297-9686

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