Detection of quantitative trait loci for teat number and female reproductive traits in Meishan x Large White F2 pigs
| Autor: | David J. Milan, Hélène Gilbert, Nathalie Iannuccelli, Jean Pierre Bidanel, Y. Amigues, A. Rosendo, Yvon Billon, Juliette Riquet, J. C. Caritez, Armelle Prunier |
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| Přispěvatelé: | Station de Génétique Quantitative et Appliquée (SGQA), Institut National de la Recherche Agronomique (INRA), Laboratoire de Génétique Cellulaire (LGC), Institut National de la Recherche Agronomique (INRA)-Ecole Nationale Vétérinaire de Toulouse (ENVT), Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées, Génétique Expérimentale en Productions Animales (GEPA), Laboratoire d'Analyse Génétique pour les Espèces Animales (LABOGENA), Systèmes d'élevage, nutrition animale et humaine (SENAH), AGROCAMPUS OUEST, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de la Recherche Agronomique (INRA), Institut National de la Recherche Agronomique (INRA)-AGROCAMPUS OUEST, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro) |
| Jazyk: | angličtina |
| Rok vydání: | 2008 |
| Předmět: |
pig
media_common.quotation_subject Biology Quantitative trait locus SF1-1100 03 medical and health sciences Animal science quantitative trait locus Gene mapping Allele Ovulation 030304 developmental biology media_common 2. Zero hunger Genetics 0303 health sciences 0402 animal and dairy science Large white Embryo 04 agricultural and veterinary sciences gene mapping 040201 dairy & animal science Animal culture [SDV.SA.SPA]Life Sciences [q-bio]/Agricultural sciences/Animal production studies Trait Gestation Animal Science and Zoology reproduction traits teat number |
| Zdroj: | Animal Animal, Published by Elsevier (since 2021) / Cambridge University Press (until 2020), 2008, 2 (6), pp.813-820. ⟨10.1017/S1751731108002097⟩ animal animal, Published by Elsevier (since 2021) / Cambridge University Press (until 2020), 2008, 2 (6), pp.813-820. ⟨10.1017/S1751731108002097⟩ Animal, Vol 2, Iss 6, Pp 813-820 (2008) |
| ISSN: | 1751-7311 1751-732X |
| DOI: | 10.1017/S1751731108002097⟩ |
| Popis: | International audience; A quantitative trait locus (QTL) analysis of female reproductive data from a three-generation experimental cross between Meishan (MS) and Large White (LW) pig breeds is presented. Six F1 boars and 23 F1 sows, progeny of six LW boars and six MS sows, produced 573 F2 females and 530 F2 males. Six traits, i.e. teat number (TN), age at puberty (AP), ovulation rate (OR), weight at mating (WTM), number of viable embryos (NVE) and embryo survival (ES) at 30 days of gestation were analysed Animals were genotyped for a total of 137 markers covering the entire porcine genome. Analyses were carried out based on interval mapping methods, using a line-cross (LC) regression and a half-full sib (HFS) maximum likelihood test. Genome-wide (GW) highly significant (P < 0.001) QTL were detected for WTM on SSC 7 and for AP on SSC 13. They explained, respectively, 14.5% and 8.9% of the trait phenotypic variance. Other GW significant (P < 0.05) QTL were detected for TN on SSC 3, 7, 8, 16 and 17, for OR on SSC 4 and 5, and for ES on SSC 9. Two additional chromosome-wide significant (P < 0.05) QTL were detected for TN, three for WTM, four for AP, three for OR, three for NVE and two for ES. With the exception of the two above-mentioned loci, the QTL explained from 1.2% to 4.6% of trait phenotypic variance. QTL alleles were in most cases not fixed in the grand-parental populations and Meishan alleles were not systematically associated with higher reproductive performance. |
| Databáze: | OpenAIRE |
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