Component Analysis of Heterozygous Diallel Crosses

Abstract

By constructing separate models for selfings and crossbreds based on their genotypic values, the genetic components analysis of Hayman and the combining ability analysis of Griffing for a diallel crosses were proved to be essentially equivalent and were combined to provide estimates of various genetic parameters of the sampled population from a heterozygous diallel. Difference in estimation of genetic parameters between homozygous diallel and heterozynous diallel were indicated. 本文依據異質型全互交自交後代與雜交後代不同基因型值分別建立其數學模式以證明在全互交分析上 Hayman 氏之遺傳成分分析法與 Griffing 氏之組合力分析法基本上為等義的，且綜合此二種分析法來分析異質型全互交以對取樣族群提供各項遺傳介量之估值。文中亦指出異質型全互交與同質型全互交在遺傳介量估算上之差異。