Identification of unique ROH regions with unfavorable effects on production and fertility traits in Canadian Holsteins

Table 4 Significant unique ROH genotypes with unfavorable effects on multiple traits

BTA	Trait	Interval (Mb)	ROH effects^a	Frequency of ROH genotypes (%)	−log₁₀ (P value)
8	MY (kg)	58.61–61.11	− 364.23	1.55	6.50
	FY (kg)		− 11.69		4.54
	PY (kg)		− 11.06		6.26
19	MY (kg)	54.48–56.53	− 280.18	1.66	4.78
19	FY (kg)	54.48–56.53	− 14.23	1.66	6.07
10	MY (kg)	81.29–84.14	− 297.84	1.44	5.19
10	PY (kg)	81.29–84.14	− 9.96	1.44	4.77
11	MY (kg)	103.48–105.76	− 252.69	2.44	5.36
11	PY (kg)	103.48–105.76	− 8.35	2.44	5.78
14	MY (kg)	35.43–37.93	− 192.90	3.86	5.01
14	PY (kg)	35.43–37.93	− 5.84	3.86	4.82
19	MY (kg)	18.51–21.50	− 225.30	2.51	4.71
19	PY (kg)	18.51–21.50	− 7.84	2.51	5.40
19	MY (kg)	22.00–24.50	− 205.46	2.86	4.54
19	PY (kg)	22.00–24.50	− 7.06	2.86	5.12
19	MY (kg)	23.71–25.85	− 205.96	2.93	4.62
19	PY (kg)	23.71–25.85	− 7.08	2.93	5.21
19	MY (kg)	23.73–25.91	− 215.11	2.97	4.92
19	PY (kg)	23.73–25.91	− 7.22	2.97	5.40
19	MY (kg)	23.81–25.97	− 218.09	2.95	4.98
19	PY (kg)	23.81–25.97	− 7.36	2.95	5.50
13	FY (kg)	21.78–25.44	− 12.10	2.02	5.56
13	PY (kg)	21.78–25.44	− 8.22	2.02	4.99
19	FY (kg)	45.84–48.66	− 9.53	2.01	4.11
19	PY (kg)	45.84–48.66	− 6.33	2.01	3.64
14	NS	76.45–79.85	0.19	0.78	3.43
14	NRR	76.45–79.85	− 0.09	0.78	2.91
14	NS	78.31–81.47	0.19	0.76	3.25
14	NRR	78.31–81.47	− 0.10	0.76	3.55
1	NRR	78.55–80.97	− 0.41	4.25	3.32
1	FSTC (day)	78.55–80.97	2.78	4.25	2.96
8	NS	92.77–95.67	0.16	1.30	3.60
8	FSTC (day)	92.77–95.67	5.59	1.30	3.58
6	NS	99.75–102.02	0.23	0.97	5.35
6	FSTC (day)	99.75–102.02	7.87	0.97	4.86

MY: milk yield; FY: fat yield; PY: protein yield; NS: number of services; NRR: 56-day non-return rate; FSTC: first service to conception; BTA: Bos taurus chromosome
^aEffects of uniquely identified ROH in comparison to the non-ROH class

ISSN: 1297-9686