Genomic scan for quantitative trait loci of chemical and physical body composition and deposition on pig chromosome X including the pseudoautosomal region of males

Table 3 Evidence for quantitative trait loci (QTL) associated with imprinting effects in the pseudoautosomal region

Trait	LR¹	Pos (CI)²	% Var³	a ± SE⁴	Imprinting
Carcass characteristics (lean and fat)
Entire loin weight (g)	10.07*	6 (0–28)	3.2	133.3 ± 41.6	Paternal
Neck weight without external fat⁵ (g)	8.85*	1 (0–13)	2.8	374.0 ± 124.8	Maternal

¹LR represents likelihood ratio values and * implies a significant QTL at the 5% chromosome-wide level
²Positions of the QTL in cM based on the USDA reference map and confidence intervals (CI) in brackets
³Percentages of F₂ variance explained by the QTL calculated as the proportion of residual variances due to the QTL effect on the residual variances excluding the QTL effect
⁴Estimated additive (a) effects and their standard errors (SE); estimates in bold represent significant additive effects
⁵New QTL only identified when the imprinting effect is included in the model

ISSN: 1297-9686