Table 2.

Association between the absence or presence of KRTAP21-2 variants and various wool traits (Mean ± SE) ¹.

Trait 2	Variant Assessed	n		Single-Variant Model			Multi-Variant Model
		Absent	Present	Absent	Present	p	Variants Fitted	Absent	Present	p
GFW	A	177	128	2.3 ± 0.14	2.4 ± 0.14	0.030	E	2.2 ± 0.14	2.3 ± 0.14	0.078
(kg)	B	145	160	2.3 ± 0.14	2.3 ± 0.14	0.739	A,E	2.3 ± 0.14	2.3 ± 0.14	0.913
	C	121	184	2.3 ± 0.14	2.3 ± 0.14	0.618	A,E	2.3 ± 0.14	2.3 ± 0.14	0.406
	E	252	53	2.3 ± 0.14	2.2 ± 0.15	0.173	A	2.3 ± 0.14	2.3 ± 0.15	0.590
CFW	A	177	128	1.8 ± 0.08	1.8 ± 0.09	0.474
(kg)	B	145	160	1.8 ± 0.08	1.8 ± 0.09	0.645
	C	121	184	1.7 ± 0.09	1.8 ± 0.08	0.442
	E	252	53	1.8 ± 0.08	1.7 ± 0.09	0.228
Yield	A	177	128	75.5 ± 1.46	74.8 ± 1.52	0.299
(%)	B	145	160	75.5 ± 1.45	74.7 ± 1.53	0.244
	C	121	184	74.7 ± 1.54	75.4 ± 1.45	0.305
	E	252	53	75.4 ± 1.46	74.7 ± 1.65	0.504
MSL (mm)	A	177	128	80.9 ± 3.96	83.2 ± 4.05	0.092	E	79.7 ± 3.95	80.6 ± 4.16	0.580
	B	145	160	81.8 ± 3.97	81.1 ± 4.08	0.619	A,E	80.2 ± 4.00	79.8 ± 4.16	0.728
	C	121	184	80.2 ± 4.09	82.0 ± 3.96	0.205	A,E	79.3 ± 4.08	80.8 ± 4.04	0.327
	E	252	53	82.7 ± 3.91	77.0 ± 4.19	0.003	A	82.8 ± 3.92	77.6 ± 4.31	0.013
MFD	A	177	128	19.7 ± 0.59	19.8 ± 0.60	0.628	B,E	19.7 ± 0.59	20.0 ± 0.62	0.358
(µm)	B	145	160	19.8 ± 0.58	19.5 ± 0.60	0.136	E	19.9 ± 0.59	19.6 ± 0.60	0.130
	C	121	184	19.7 ± 0.60	19.7 ± 0.59	0.946	B,E	19.9 ± 0.61	19.7 ± 0.60	0.462
	E	252	53	19.6 ± 0.58	20.1 ± 0.62	0.102	B	19.5 ± 0.58	20.0 ± 0.62	0.098
FDSD	A	177	128	4.1 ± 0.21	4.2 ± 0.21	0.549	B,E	4.2 ± 0.21	4.3 ± 0.22	0.260
(µm)	B	145	160	4.2 ± 0.20	4.1 ± 0.21	0.126	E	4.2 ± 0.21	4.1 ± 0.21	0.120
	C	121	184	4.2 ± 0.21	4.1 ± 0.21	0.787	B,E	4.2 ± 0.21	4.1 ± 0.21	0.330
	E	252	53	4.1 ± 0.21	4.3 ± 0.22	0.068	B	4.1 ± 0.21	4.3 ± 0.22	0.065
CVFD	A	177	128	21.0 ± 0.56	21.1 ± 0.59	0.593
(%)	B	145	160	21.1 ± 0.56	20.9 ± 0.59	0.415
	C	121	184	21.2 ± 0.59	21.0 ± 0.56	0.592
	E	252	53	21.0 ± 0.56	21.3 ± 0.63	0.318
MSS	A	177	128	21.9 ± 2.60	21.1 ± 2.67	0.427	B,E	21.5 ± 2.62	20.4 ± 2.78	0.262
(N/ktex)	B	145	160	22.1 ± 2.59	20.5 ± 2.66	0.081	E	22.3 ± 2.62	20.7 ± 2.69	0.081
	C	121	184	20.9 ± 2.68	21.9 ± 2.59	0.275	B,E	21.3 ± 2.70	21.6 ± 2.66	0.788
	E	252	53	21.5 ± 22.60	22.1 ± 2.79	0.068	B	21.2 ± 2.60	21.8 ± 2.78	0.630
MFC	A	177	128	96.1 ± 3.26	94.2 ± 3.46	0.281	C	95.2 ± 3.31	93.8 ± 3.46	0.435
(o/mm)	B	145	160	95.8 ± 3.29	95.0 ± 3.41	0.658	C	94.1 ± 3.44	95.3 ± 3.40	0.565
	C	121	184	93.2 ± 3.49	96.2 ± 3.23	0.093
	E	252	53	94.9 ± 3.25	98.1 ± 3.83	0.218	C	93.9 ± 3.29	97.8 ± 3.82	0.126
PF	A	177	128	2.6 ± 0.74	2.7 ± 0.78	0.584	E	2.9 ± 0.75	3.5 ± 0.83	0.132
(%)	B	145	160	2.8 ± 0.75	2.4 ± 0.76	0.205	E	3.1 ± 0.77	2.7 ± 0.77	0.186
	C	121	184	2.6 ± 0.80	2.6 ± 0.74	0.905	E	2.8 ± 0.80	3.0 ± 0.76	0.639
	E	252	53	2.4 ± 0.74	3.4 ± 0.84	0.055

¹ Predicted means and standard error derived from GLMs with various factors being included into the models for different wool traits as described in the Materials and Methods. p < 0.05 are in bold, while 0.05 ≤ p < 0.10 are italicised; ² GFW: Greasy fleece weight; CFW: Clean fleece weight; MFD: Mean fibre diameter; FDSD: Fibre diameter standard deviation; CVFD: Coefficient of variation of fibre diameter; MSL: Mean staple length; MSS: Mean staple strength; MFC: mean fibre curvature; PF: Picker factor (percentage of fibres over 30 microns).