title: [The role of variable selective factors in the maintainence of polymorphism in Drosophila melanogaster: models and comparison to experimental populations].
abstract: During the study of Drosophila melanogaster experimental populations, the adaptiive values of three genotypes corresponding to sepia locus were measured, and a frequency dependent selection model was proposed. This model and the overdominance model are compared to the experimental populations. The fit is better with the frequency dependent selection model.
mesh_terms: D000818:Animals; D005075:Biological Evolution; D004331:Drosophila melanogaster / Q000502:physiology*; D005787:Gene Frequency; D005838:Genotype; D008954:Models, Biological; D011110:Polymorphism, Genetic; D012641:Selection, Genetic
vernacular_title: Rôle des valeurs sélectives variables dans le maintien du polymorphisme chez Drosophila melanogaster: mise en évidence par modélisation et comparaison à des populations expérimentales