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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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Morphological and molecular analysis of Brachycaudus, subgenus Appelia-complex (Rhynchota, Aphididae) Inra
Cocuzza, G.; Cavalieri, V.; Jousselin, E.; Coeur D'Acier, A.; Barbagallo, S..
A taxonomic investigation is developed on aphids of the genus Brachycaudus v.d.G. subgenus Appelia Börner, commonly known as B. prunicola complex. To date the group composition is not entirely clear because of the morphological similarity of its different members. Biometric multivariate analysis and genetic analysis which included both mitochondrial and nuclear DNA sequencing as well as allozyme analysis were used. All analytical methods highlighted a convergence of results which recognise three separate species (B. prunicola, B. tragopogonis and B. cerinthis); a forth taxon however, B. schwartzi, proved to be closely allied either morphologically and genetically to B. prunicola, hence considered as B. prunicola ssp. schwartzi. Finally, a synoptic...
Tipo: Journal Article Palavras-chave: PUCERON; ANALYSE MOLECULAIRE; ANALYSE MULTIVARIEE; SYSTEMATIQUE APHIDS; SYSTEMATIC; MOLECULAR ANALYSES; MULTIVARIATE ANALYSES; BRACHYCAUDUS; APPELIA.
Ano: 2007 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2009743c37a&uri=/notices/prodinra1/2010/08/
Registros recuperados: 2
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