Table 4.

Evidence for QTL significant at the 5% chromosome-wide level for traits related to muscle fibre distribution by chromosome obtained by half-sib analysis. Estimated significance levels (F-value), position, % of F2 variance explained by each QTL, and gene effects.

Trait	SSC	Position [cM]	F- Value	% Variance1
ProGiF	1	0	8.7*	24.3
ProFTG/w	1	108	4.3**	6.2
Diared	1	117	3.9**	11.0
Fib/mm2	1	120	3.4*	9.5
Diaw	1	120	4.1**	11.5
ProSTO/red	1	124	4.2**	6.0
Prored	1	136	4.5**	12.6
ToF#	2	40	4.8**	15.0
ProFTO	2	100	5.8***	18.2
CapSTO	2	123	5.6***	17.5
Proim	3	10	3.3*	9.1
ProFTO	3	16	3.8*	11.9
DiaAnf	4	13	4.6**	12.9
Prow	4	19	3.2*	9.0
ProFTO/im	4	64	3.4*	4.8
ProFTG/w	4	80	4.5*	6.4
DiaFTO/im	4	80	4.3**	6.2
DiaGiF	4	129	4.7*	13.1
ProGiF	4	132	6.2***	8.8
ToF#	5	75	4.3*	12.2
Prow	7	139	3.4*	9.5
ProFTO	8	55	6.0***	18.9
ProAnF	8	97	5.1*	15.9
ProFTG	8	127	5.4**	17.0
Fib/mm2	9	50	3.9**	4.1
DiaFTG/w	9	72	3.3*	3.2
ProAnF	10	11	4.3*	13.5
ToF#	11	80	6.0**	17.3
Diaim	11	83	4.0**	11.1
Diared	11	85	3.9**	11.0
Diaw	11	86	4.7**	13.1
Fib/mm2	11	91	5.2***	5.9
Prored	11	98	3.5*	9.9
Prow	11	98	3.4*	9.5
ProGiF	12	38	10.3***	24.4
DiaGiF	12	56	7.4***	17.5
Capmean	13	54	3.2*	10.0
DiaFTG/w	13	60	3.9*	5.6
Fib/mm2	13	62	4.1**	5.9
CapSTO	13	66	4.0*	12.7
ToF#	13	76	3.2*	9.3
ToF#	14	24	3.9*	12.3
ProGiF	15	32	12.7****	15.5
DiaGiF	15	34	6.4**	15.1
Prored	16	12	3.1*	8.6
ProGiF	16	74	4.3*	13.6
Fib/mm2	17	22	3.1*	9.7
ProAnF	17	58	4.1**	5.9

*: significant at the 5% chromosome-wide level, **: significant at the 1% chromosome-wide level, ***: significant at the 5% genome-wide level, ****: significant at the 1% genome-wide level

¹the fraction of phenotypic variance in the F2 explained by a QTL; calculated as the proportion of residual variance of the statistical models with and without the QTL effect