Journal
MEAT SCIENCE
Volume 110, Issue -, Pages 46-51Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.meatsci.2015.06.011
Keywords
Fatty acid composition; Swine; SNP; Association
Categories
Funding
- National Institute of Animal Science, Rural Development Administration in Korea
- [PJ009476]
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This study aimed to verify genetic relationships between fatty add composition (FAC) and genotypes of several genes (FABP3, HMGA1, MC4R, IGF2, and FABP4) using pig breeds. The effects of genetic variations on FAC of the longissimus muscle were statistically significant with additive and dominance effects. The polymorphisms of FABP3 and IGF2 had the largest effects on stearic (C18:0, P = 0.009) and gamma-linoleic (C18:3n6, P = 0.039) acids, respectively, whereas HMGA1 and FABP4 did not show significances. The analysis revealed that MC4R was significantly associated with palmitoleic acid (C16:ln7) and MUFA. Allele frequencies of the genes examined in this analysis were significantly skewed or fixed in the Korean native pig (KNP), whereas the allele frequencies of the crossbreds tended to fall between those of the purebreds except that HMGA1 and FABP4 had approximately the same allele frequencies with Duroc and KNP, respectively. The polymorphisms found in this study could be used as genetic markers in breeding programs to simultaneously change proportions of fatty acids in muscle tissues. (C) 2015 Elsevier Ltd. All rights reserved.
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