Journal
MEAT SCIENCE
Volume 86, Issue 3, Pages 808-813Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.meatsci.2010.07.001
Keywords
Association study; Back fat thickness; Italian heavy pigs; Missense mutation; SNP; TRIB3
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Funding
- University of Bologna FAGenomicH
- Italian MiPAAF SELMOL funds
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TRIB3 plays an important role in energy metabolism. This work aimed to study the porcine tribbles homolog 3 (TRIB3) gene and to evaluate its association with meat quality and carcass traits in pigs. By sequencing a portion of the porcine TRIB3 gene two single nucleotide polymorphisms (SNPs) in the first coding exon (one synonymous SNP: c.132 T>C; and one missense mutation: c.146C>T, p.P49L) were identified. The two polymorphisms were in complete linkage disequilibrium. In silico analysis of the p.P49L mutation suggested that it could have functional effects. Association studies in four groups of pigs (651 animals in total) indicated that this gene marker was associated with back fat thickness in Italian Large White and Italian Duroc pigs in two different experimental designs (P<0.1 and P<0.05). This polymorphism tended to be associated with lactate content of the semimembranosus muscle (P<0.1). Among several other tissues. TRIB3 is expressed in fat and skeletal muscle. (C) 2010 The American Meat Science Association. Published by Elsevier Ltd. All rights reserved.
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