title: Polymorphism and expression of the porcine Tenascin C gene associated with meat and carcass quality.
abstract: The research aimed to screen for polymorphism, expression of Tenascin C (TNC) and association with meat and carcass quality traits. Three single nucleotide polymorphisms were detected. In a Duroc×Pietrain F2 cross (DuPi) population, g.44488C>T was associated with meat color and ham weight; g.68794A>G was associated with pH at 24h post mortem in ham (pH24(H)) and muscle area but g.68841C>T was not statistically associated. Genotyping in a commercial Pietrain (Pi) population showed that g.44488C>T was associated with pH24(H), whereas g.68794A>G was associated with conductivity at 45 min post mortem in loin and backfat thickness. Diplotypes showed significant effects on pH24(H) in both populations. The expression was associated with pH at 45 min post mortem in loin and cooking loss. TNC was significantly higher in animals with higher muscle pH. Linkage analysis revealed four trans-regulated eQTL on four autosomes. These results suggest that TNC could be a potential candidate gene for meat quality traits in pigs.
authors.affiliation: Institute of Animal Science, Animal Breeding and Husbandry Group, University of Bonn, 53115 Bonn, Germany. akay@itw.uni-bonn.de
authors.forename: A
authors.initials: A
authors.lastname: Kayan
authors.forename: M U
authors.initials: MU
authors.lastname: Cinar
authors.forename: M J
authors.initials: MJ
authors.lastname: Uddin
authors.forename: C
authors.initials: C
authors.lastname: Phatsara
authors.forename: K
authors.initials: K
authors.lastname: Wimmers
authors.forename: S
authors.initials: S
authors.lastname: Ponsuksili
authors.forename: D
authors.initials: D
authors.lastname: Tesfaye
authors.forename: C
authors.initials: C
authors.lastname: Looft
authors.forename: H
authors.initials: H
authors.lastname: Juengst
authors.forename: E
authors.initials: E
authors.lastname: Tholen
authors.forename: K
authors.initials: K
authors.lastname: Schellander
mesh_terms: D000818:Animals; D001823:Body Composition; D003296:Cooking; D005786:Gene Expression Regulation; D005787:Gene Frequency; D056726:Genetic Association Studies; D008040:Genetic Linkage; D005819:Genetic Markers; D005838:Genotype; D006239:Haplotypes; D008460:Meat; D020641:Polymorphism, Single Nucleotide; D019655:Quantitative Trait, Heritable; D012333:RNA, Messenger / Q000235:genetics / Q000378:metabolism; D034421:Sus scrofa / Q000235:genetics*; D019063:Tenascin / Q000235:genetics* / Q000378:metabolism
chemical_list: D005819:Genetic Markers; D012333:RNA, Messenger; D019063:Tenascin