22 research outputs found
Genetic study of behavioral and pituitary-adrenocortical reactivity in response to an environmental challenge in pigs
International audienc
Behavior and pituitary-adrenal function in Large White and Meishan pigs
International audienc
Etude de quelques facteurs de variation du défaut viande déstructurée sur le jambon frais.
International audienc
Genetic linkage mapping of quantitative trait loci for behavioral and neuroendocrine stress response traits in pigs
International audienc
Mapping of QTLs in F2 crosses between Meishan and Large White pig breeds
International audienc
An assessment of the European pig diversity using molecular markers : partitioning of diversity among breeds
Genetic diversity within and between breeds (and lines) of pigs was investigated. The sample comprised 68 European domestic breeds (and lines), including 29 local breeds, 18 varieties of major international breeds, namely Duroc, Hampshire, Landrace, Large White and Pi\uc3\ua9train, and 21 commercial lines either purebred or synthetic, to which the Chinese Meishan and a sample of European wild pig were added. On average 46 animals per breed were sampled (range 12\ue2 68). The genetic markers were microsatellites (50 loci) and AFLP (amplified fragment length polymorphism, 148 loci). The analysis of diversity showed that the local breeds accounted for 56% of the total European between-breed microsatellite diversity, and slightly less for AFLP, followed by commercial lines and international breeds. Conversely, the group of international breeds contributed most to within-breed diversity, followed by commercial lines and local breeds. Individual breed contributions to the overall European between- and within-breed diversity were estimated. The range in between-breed diversity contributions among the 68 breeds was 0.04\ue2 3.94% for microsatellites and 0.24\ue2 2.94% for AFLP. The within-breed diversity contributions varied very little for both types of markers, but microsatellite contributions were negatively correlated with the between-breed contributions, so care is needed in balancing the two types of contribution when making conservation decisions. By taking into account the risks of extinction of the 29 local breeds, a cryopreservation potential (priority) was estimated for each of them
Current status of QTL detection in large white X Meishan crosses in France
International audienc
Mapping of quantitative Trait Loci (QTL)in F2 crosses between Meishan and Large White pig breeds in France
International audienc