Associations between pig adiponectin (ADIPOQ) genotype and serum lipid levels are modulated by age-specific modifiers
Data de publicació2014-12-15
Quintanilla Aguado, Raquel
Gallardo García, David
Noguera Jiménez, José Luis
Jordana i Vidal, Jordi
Amills i Eras, Marcel
MetadadesMostra el registre d'unitat complet
The adiponectin (ADIPOQ) locus is a positional and functional candidate gene for 2 porcine chromosome 13 (SSC13) QTL influencing cholesterol (CHOL) and low-density lipoprotein (LDL) concentrations in 190-d-old pigs. By sequencing 2.37 kb of the pig ADIPOQ cDNA, we have identified 1 c.*1512G > T 3′ untranslated region polymorphism that has been genotyped in a Duroc pig commercial population with records for serum lipid levels at 45 and 190 d of age. Statistical analysis of the data have revealed significant associations between the ADIPOQ genotype and CHOL (P = 0.0040) and LDL (P = 0.0011) concentrations at 190 d but not at 45 d. In family 3, most of the SSC13 QTL effects on LDL levels at 190 d were explained by the ADIPOQ genotype. We also found an association with triglyceride levels at 45 d (P = 0.0060) but not at 190 d. Measurement of allelic mRNA imbalance demonstrated that the G and T alleles are expressed at very similar levels at muscle and fat tissues, indicating that the c.*1512G > T polymorphism does not affect transcript abundance. As a whole, results obtained in the current work as well as previous data gathered in humans and pigs provide[AU: please confirm change] evidence that the magnitude of associations between blood lipid phenotypes and candidate loci genotypes may vary depending on the age of the individual, therefore suggesting the existence of dynamic genotype × environment interactions changing on a temporal scale
És part deJournal of Animal Science, 2014, vol. 92, núm. 12, p. 5367-5373
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