Validation of the QTL on SSC4 for meat and carcass quality traits in a commercial crossbred pig population.

Publisher: Blackwell Country of Publication: Germany NLM ID: 100955807 Publication Model: Print Cited Medium: Print ISSN: 0931-2668 (Print) Linking ISSN: 09312668 NLM ISO Abbreviation: J Anim Breed Genet Subsets: MEDLINE

Publication: 1994- : Berlin : Blackwell
Original Publication: Hamburg : P. Parey, c1985-

Meat* ; Phenotype* ; Quantitative Trait Loci*; Body Constitution/*genetics ; Breeding/*methods ; Sus scrofa/*genetics; Animals ; Microsatellite Repeats/genetics ; Regression Analysis

Porcine chromosome 4 harbours many quantitative trait loci (QTL) affecting meat quality, fatness and carcass composition traits, detected in resource pig populations previously. However, prior to selection in commercial breeds, QTL identified in an intercross between divergent breeds require confirmation, so that they can be segregated. Consequently, the objective of this study was to validate several QTL on porcine chromosome 4 responsible for meat and carcass quality traits. The experimental population consisted of 14 crossbred paternal half-sib families. The region of investigation was the q arm of SSC4 flanked by the markers S0073 and S0813. Regression analysis resulted in the validation of three QTL within the interval: Minolta a* loin, back fat thickness and the weight of trimmed ham. The results were additionally confirmed by factor analysis. Candidate genes were proposed for meat colour, which was the most evident QTL validated in this study.

Date Created: 20090212 Date Completed: 20090331 Latest Revision: 20090211

20250114

10.1111/j.1439-0388.2008.00753.x

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