Article (Scientific journals)
Detection of quantitative trait loci for reproduction and production traits in Large White and French Landrace pig populations.
Tribout, Thierry; Iannuccelli, Nathalie; Druet, Tom et al.
2008In Genetics, Selection, Evolution, 40 (1), p. 61-78
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Keywords :
Animals; Body Weight/genetics; Chromosome Mapping; Efficiency; Female; Genetic Markers/physiology; Genotype; Litter Size/genetics; Male; Quantitative Trait Loci; Reproduction/genetics; Swine/genetics
Abstract :
[en] A genome-wide scan was performed in Large White and French Landrace pig populations in order to identify QTL affecting reproduction and production traits. The experiment was based on a granddaughter design, including five Large White and three French Landrace half-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 genotyped for 144 microsatellite markers. The design included 51 262 animals recorded for production traits, and 53 205 litter size records were considered. Three production and three reproduction traits were analysed: average backfat thickness (US_M) and live weight (LWGT) at the end of the on-farm test, age of candidates adjusted at 100 kg live weight, total number of piglets born per litter, and numbers of stillborn (STILLp) and born alive (LIVp) piglets per litter. Ten QTL with medium to large effects were detected at a chromosome-wide significance level of 5% affecting traits US_M (on SSC2, SSC3 and SSC17), LWGT (on SSC4), STILLp (on SSC6, SSC11 and SSC14) and LIVp (on SSC7, SSC16 and SSC18). The number of heterozygous male founders varied from 1 to 3 depending on the QTL.
Disciplines :
Genetics & genetic processes
Animal production & animal husbandry
Author, co-author :
Tribout, Thierry
Iannuccelli, Nathalie
Druet, Tom ;  Institut Scientifique de Recherche Agronomique - INRA > Département de Génétique Animale > Station de Génétique Quantitative et Appliquée
Gilbert, Helene
Riquet, Juliette
Gueblez, Ronan
Mercat, Marie-Jose
Bidanel, Jean-Pierre
Milan, Denis
Le Roy, Pascale
Language :
English
Title :
Detection of quantitative trait loci for reproduction and production traits in Large White and French Landrace pig populations.
Publication date :
2008
Journal title :
Genetics, Selection, Evolution
ISSN :
0999-193X
eISSN :
1297-9686
Publisher :
BioMed Central, United Kingdom
Volume :
40
Issue :
1
Pages :
61-78
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 07 May 2010

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