Skip to Main content Skip to Navigation
Journal articles

Modeling the effect of a genetic factor for a complex trait in a simulated population.

Abstract : Genetic Analysis Workshop 14 simulated data have been analyzed with MASC(marker association segregation chi-squares) in which we implemented a bootstrap procedure to provide the variation intervals of parameter estimates. We model here the effect of a genetic factor, S, for Kofendrerd Personality Disorder in the region of the marker C03R0281 for the Aipotu population. The goodness of fit of several genetic models with two alleles for one locus has been tested. The data are not compatible with a direct effect of a single-nucleotide polymorphism (SNP) (SNP 16, 17, 18, 19 of pack 153) in the region. Therefore, we can conclude that the functional polymorphism has not been typed and is in linkage disequilibrium with the four studied SNPs. We obtained very large variation intervals both of the disease allele frequency and the degree of dominance. The uncertainty of the model parameters can be explained first, by the method used, which models marginal effects when the disease is due to complex interactions, second, by the presence of different sub-criteria used for the diagnosis that are not determined by S in the same way, and third, by the fact that the segregation of the disease in the families was not taken into account. However, we could not find any model that could explain the familial segregation of the trait, namely the higher proportion of affected parents than affected sibs.
Document type :
Journal articles
Complete list of metadatas

Cited literature [3 references]  Display  Hide  Download

https://www.hal.inserm.fr/inserm-00089272
Contributor : Christine Vaillant <>
Submitted on : Wednesday, August 16, 2006 - 4:40:46 PM
Last modification on : Wednesday, September 16, 2020 - 4:57:34 PM
Long-term archiving on: : Tuesday, September 18, 2012 - 4:38:51 PM

Identifiers

Citation

Mathieu Bourgey, Anne-Louise Leutenegger, Emmanuelle Cousin, Catherine Bourgain, Marie-Claude Babron, et al.. Modeling the effect of a genetic factor for a complex trait in a simulated population.. BMC Genetics, BioMed Central, 2005, 6 Suppl 1, pp.S87. ⟨10.1186/1471-2156-6-S1-S87⟩. ⟨inserm-00089272⟩

Share

Metrics

Record views

434

Files downloads

847