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| Riquet, J.; Gilbert, H.; Servin, B.; Sanchez, M.P.; Iannuccelli, N.; Billon, Y.; Bidanel, J.P.; Milan, D.. |
| Background: In previous studies, a major QTL affecting fatness and growth has been mapped to pig chromosome1q (SSC1q) using Large White - Meishan intercrosses. A higher fat depth and a larger growth rate have beenreported for the allele of MS origin. Additionally the LW allele showed partial dominance effects over the MS allelefor both traits. In order to refine the QTL mapping interval, advanced backcross generations were produced.Recombinant heterozygous sires were mated to LW sows in order to progeny test the sire segregation of the QTLand refine the QTL localisation. However due to the partial dominance of the LW allele, BC scheme using LW asthe receiving population was not optimal.Results: To overcome the difficulties related to the dominance of the... |
| Tipo: Journal Article |
Palavras-chave: QUANTITATIVE TRAIT LOCI; CARCASS COMPOSITION; ALTERNATIVE MODELS; GROWTH; CHROMOSOME-4; IDENTIFICATION; LIVESTOCK; FATNESS; BACKFAT; SWINE. |
| Ano: 2011 |
URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2011e10111fa&uri=/notices/prodinra1/2011/03/ |
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| Tribout, T.; Iannuccelli, N.; Druet, T.; Gilbert, H.; Riquet, J.; Gueblez; Mercat; Bidanel, J.P.; Milan, D.; Le Roy, P.. |
| A genome-wide scan was performed in Large White and French Landrace pig populationsin order to identify QTL affecting reproduction and production traits. The experimentwas based on a granddaughter design, including five Large White and three French Landracehalf-sib families identified in the French porcine national database. A total of 239 animals(166 sons and 73 daughters of the eight male founders) distributed in eight families were genotypedfor 144 microsatellite markers. The design included 51 262 animals recorded for productiontraits, and 53 205 litter size records were considered. Three production and three reproductiontraits were analysed: average backfat thickness (US_M) and live weight (LWGT) at the endof the on-farm test, age of candidates... |
| Tipo: Journal Article |
Palavras-chave: QUANTITATIVE TRAIT LOCUS; PIG; COMMERCIAL POPULATION; PRODUCTION TRAIT; REPRODUCTION TRAIT. |
| Ano: 2008 |
URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2008cc972a9f&uri=/notices/prodinra1/2009/12/ |
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| Sanchez, M.P.; Iannuccelli, N.; Le Mignon, G.; Ruzafa, S.; Mercat, M.J.; Dechamp, N.; Billon, Y.; Bouffaud, M.; Schwob, S.; Gilbert, H.; Riquet, J.; Bidanel, J.P.; Milan, D.. |
| Tipo: Conference Paper |
Palavras-chave: QTL; LONGISSIMUS DORSI. |
| Ano: 2010 |
URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20103f7bc36d&uri=/notices/prodinra1/2010/11/ |
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| 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.. |
| Tipo: Journal Article |
Palavras-chave: QTL; Intramuscular fat content; Fatty acid composition. |
| Ano: 2007 |
URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20075242859a&uri=/notices/prodinra1/2009/12/ |
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| 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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| 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 Durocpig, it was appealing to determine whether favourable alleles at a major gene or QTL could be found. The detection wasperformed in an experimental F2 Duroc × Large White population first by segregation analysis, then by QTL mapping usingadditional molecular information.Results: Segregation analysis provided evidence for a major gene, with a recessive Duroc allele increasing IMF by 1.8% in Durochomozygous pigs. However, results depended on whether data were normalised or not. After Box-Cox transformation,... |
| Tipo: Journal Article |
Palavras-chave: QUANTITATIVE TRAIT LOCI; FATTY ACID COMPOSITION. |
| Ano: 2007 |
URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2008399a868b&uri=/notices/prodinra1/2011/02/ |
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| Demars, J.; Riquet, J; Sanchez, B.; Billon, Y.; Hocquette, J.F.; Lebret, B.; Iannuccelli, N.; Bidanel, J.P.; Milan, D.; Gondret, F.. |
| Tipo: Journal Article |
Palavras-chave: COMPOSITION CORPORELLE; RACE PORCINE LARGE WHITE; RACE PORCINE MEISHAN; CHROMOSOME 7; LIPOGENESE; ADIPOCYTE. |
| Ano: 2007 |
URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20072419c480&uri=/notices/prodinra1/2010/09/ |
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