This article is part of the supplement: Third International Workshop on Major Genes and QTL in Sheep and Goats; 8–11 December 2003, Toulouse, France
Proceedings
Mapping quantitative trait loci for milk production and genetic polymorphisms of milk proteins in dairy sheep
-
* Corresponding author: Francis Barillet Barillet@toulouse.inra.fr
1 Station d'amélioration des animaux, Institut national de la recherche agronomique, BP 27, 31326 Castanet-Tolosan Cedex, France
2 Universidad de Leon, Departamento de Produccion Animal, 24071 Leon, Spain
3 Istituto Zootecnico e Caseario per la Sardegna, 07040 Olmedo, Italy
Genetics Selection Evolution 2005, 37(Suppl 1):S109-S123 doi:10.1186/1297-9686-37-S1-S109
The electronic version of this article is the complete one and can be found online at: http://www.gsejournal.org/content/37/S1/S109
| Accepted: | 5 October 2004 |
| Published: | 15 December 2005 |
© 2005 INRA, EDP Sciences
Abstract
In this paper, we present recent advances in the molecular dissection of complex traits in dairy sheep and discuss their possible impact on breeding schemes. In the first step, we review the literature data on genetic polymorphisms and the effects of sheep αs1-casein and β-lactoglobulin loci. It is concluded that the results are rather inconsistent and cannot be used in dairy sheep selection. In a second step, we describe the strategy implemented in France, Italy and Spain taking advantage of the genetic maps for QTL detection. These studies were part of a European project, called "genesheepsafety", which investigated both milk production and functional traits. Preliminary QTL results are presented for production traits.
Keywords:
dairy sheep; milk proteins; genetic polymorphisms; QTL; milk productionProceedings
(To access the full article, please see PDF)