TAILIEUCHUNG - báo cáo khoa học: "Posterior based probability of the sire’s genotype at a major locus on progeny-test results for discrete characters"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Posterior based probability of the sire’s genotype at a major locus on progeny-test results for discrete characters | Génét. Sél. Evol. 1988 20 2 227-238 Posterior probability of the sire s genotype at a major locus based on progeny-test results for discrete characters . FOULLEY and . ELSEN 1nstitut National de la Recherche Agronomique Station de Génétique Quantitative et Appliquée Centre de Recherches de Jouy 78350 Jouy-en-Josas France Institut National de la Recherche Agronomique Station d Amelioration Génétique des Animaux Centre de Recherches de Toulouse BP 27 31326 Castanet-Tolosan Cedex France Summary This paper presents the expression of the posterior probability of the different possible genotypes of a sire at a major locus based on progeny performance for a discrete trait. Binomial multinomial and Poisson distributions are considered fort this trait. Sires and dams are assumed unrelated. Polygenic as well a major gene effects are supposed to influence the trait recorded. An approximation to the computation of the posterior probability is suggested by expressing the latter conditionally to estimated values of location and dispersion parameters population environmental and polygenic effects which influence progeny performance. Key words major gene Bayes theorem discrete characters. Résumé Probabilité a posteriori du genotype paternel à un locus majeur à partir de I observation des descendants cas d un caractère discret Cet article présente 1 expression de la probabilité a posteriori des differents genotypes possibles dun père à un locus majeur à partir des performances obtenues en contrôle de descendance pour un caractère discret. Des distributions binomiale multinomiale et de Poisson sont considérées pour ce dernier. Les parents sont supposes non apparentés entre eux. Le caractère mesuré est suppose sous la dependance d un gene majeur et de polygenes. Un calcul approché de la probabilité est propose base sur 1 expression de celle-ci conditionnellement à des valeurs estimées des paramètres de position et de dispersion relatifs aux effets population environnementaux et

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