TAILIEUCHUNG - Báo cáo khoa hoc:" Selection of as grandparental combinations a procedure designed to make use of dominance genetic effects"

Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí sinh học thế giới đề tài: Selection of as grandparental combinations a procedure designed to make use of dominance genetic effects | Genet. Sei. Evol. 30 1998 339-349 Inra Elsevier Paris 339 Original article Selection of grandparental combinations as a procedure designed to make use of dominance genetic effects Miguel A. Toro CIT-INIA Area de Mejora Genética Animal Carretera La Coruna 28040 Madrid Spain Received 2 March 1998 accepted 27 May 1998 Abstract - A general procedure called selection of grandparental combinations SGPC is presented which allows one to use dominance genetic effects. The method assumes that there are two types of matings either to breed the population or to obtain commercial animals. The idea is to select grandparental combinations such that the overall genetic merit of future grandoffspring which constitute the commercial animals is maximized. Two small computer simulated examples are analysed assuming either a infinitesimal genetic model or that QTL controlling the trait are known. Inra Elsevier Paris selection of grandparental combinations I dominance variance mating strategies Resume Selection de combinaisons de grands-parents comme une procedure pour utiliser les effets de dominance génétique. On présente une procedure générale appelée selection de combinaisons de grands-parents SGPC qui permet 1 utilisation des effets de dominance génétique. La methode suppose qu il y a deux types d accouplements 1 un pour propager la population 1 autre pour 1 obtention des animaux commerciaux. L objectif est de sélectionner les combinaisons de grandsparents de telle fagon que le mérite génétique global des futurs petit-fils qui constituent les animaux commerciaux soit maximise. Deux petits exemples de simulation sur ordinateur sont analyses 1 un supposant le modèle génétique infinitesimal et 1 autre introduisant des QTL qui contrôlent le caractère. Inra Elsevier Paris selection de combinaisons de grands-parents variance de dominance strategies d accouplement E-mail toro@ 340 . Toro 1. INTRODUCTION Breeding programmes for economically important traits are based on .

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