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Identification of QTL with effects on intramuscular fat content and fatty acid composition in a Duroc × Large White cross Inra
Sanchez, M.P.; Iannuccelli, N.; Basso, B.; Bidanel, J.P.; Billon, Y.; Gandemer, G.; Gilbert, H.; Larzul, C.; Legault, C.; Riquet, J.; Milan, D.; Le Roy, P..
Background: Improving pork quality can be done by increasing intramuscular fat (IMF) content. This trait is influenced by quantitative trait loci (QTL) sought out in different pig populations. Considering the high IMF content observed in the Duroc pig, it was appealing to determine whether favourable alleles at a major gene or QTL could be found. The detection was performed in an experimental F2 Duroc × Large White population first by segregation analysis, then by QTL mapping using additional molecular information. Results: Segregation analysis provided evidence for a major gene, with a recessive Duroc allele increasing IMF by 1.8% in Duroc homozygous pigs. However, results depended on whether data were normalised or not. After Box-Cox...
Tipo: Journal Article Palavras-chave: DETECTION OF QTL; SEGREGATION ANALYSIS; INTRAMUSCULAR FAT MEASUREMENTS; MOLECULAR ANALYSES; STATISTICAL ANALYSES.
Ano: 2007 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2007d8cfb116&uri=/notices/prodinra1/2011/04/
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