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Poster De Conférence Année : 2014

Detection of QTL influencing egg quality traits in layers receiving various diets

Résumé

Taking advantage of the 600K Affymetrix® Axiom® HD genotyping array, the aim of this study is to detect QTL influencing egg quality traits in layers. A population of 438 sires from a pure line was genotyped. Their 31,381 F1 crossbred daughters were phenotyped for egg quality traits at 50 and 70 weeks of age. Moreover, to observe the putative existence of QTL by environment interactions, these layers were divided into 2 groups, fed with two different diets. The egg shell color and its components (redness, yellowness, lightness), the egg shell strength, stiffness and shape, the short length of egg and the egg weight were recorded. GWAS analyses have been showed 13,547 SNP with a significant (1% chromosome wide level) association with at least one egg quality trait. Thus, QTL have been detected and genotype by environment interactions have been observed.
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Dates et versions

hal-01210693 , version 1 (03-06-2020)

Identifiants

  • HAL Id : hal-01210693 , version 1
  • PRODINRA : 271653

Citer

Hélène Romé, Amandine Varenne, Frédéric Herault, Hervé Chapuis, Christophe Alleno, et al.. Detection of QTL influencing egg quality traits in layers receiving various diets. 10. World Congress on Genetics Applied to Livestock Production (WCGALP), Aug 2014, Vancouver, Canada. 2014, Proceedings of the 10th World Congress on Genetics Applied to Livestock Production. ⟨hal-01210693⟩
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