Recombination rates in pigs differ between breeds, sexes and individuals, and are associated with the RNF212, SYCP2, PRDM7, MEI1 and MSH4 loci

Table 4 Basic statistics and variance component estimates for ACC by breed and sex

Breed	Sex	N_FID	N_obs	Mean (SD)	\({h}^{2}\) (SE)	V_p	V_e
LR	Female	4808	37,148	21.3 (4.2)	0.11 (0.01)	18.53	16.40
LR	Male	319	37,386	16.8 (3.5)	0.05 (0.05)	20.34	10.92
LW	Female	4695	41,092	24.4 (4.6)	0.11 (0.01)	21.41	19.08
LW	Male	273	41,104	18.2 (3.4)	0.06 (0.01)	11.44	10.81
DU	Female	1687	9268	21.4 (4.3)	0.08 (0.01)	18.35	16.55
DU	Male	192	9097	17.4 (3.3)	0.07 (0.02)	10.69	9.89
SY	Female	2633	25,623	22.7 (4.4)	0.10 (0.01)	19.73	17.45
SY	Male	224	25,622	17.6 (3.4)	0.04 (0.01)	11.38	10.83
PI	Female	1353	12,101	21.8 (4.4)	0.08 (0.01)	19.08	16.89
PI	Male	196	12,097	16.3 (3.3)	0.06 (0.02)	10.89	10.19

N_FID total number of FID (with repeated measures), N_obs total number of observations (meioses) in each sex and line, Mean mean ACC with standard deviations in parenthesis, \({h}^{2}\) heritability estimate with standard errors in parenthesis, V_p and V_e phenotypic variance and error variance, respectively, LR Landrace, DU Duroc, LW Large White, PI Pietrain, SY Synthetic

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