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Inbreeding in artificial selection programmes

机译:人工选择程序的近交

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摘要

The restriction of population size, in terms of the number of individuals allowed to breed, leads to an increase of homozygosis within the population and also to random changes in gene frequency from generation to generation. The magnitude of these effects can be described by introducing the concept of the idealized random breeding population (see Falconer, 1960, p. 49). In Crow's words (1954), 'the offspring come from pairs of gametes which are drawn at random from an infinite pool to which each parent had contributed equally'. The number of progeny contributed by individual parents then has a Poisson distribution.
机译:就允许繁殖的个体数量而言,种群规模的限制导致种群内纯合子的增加,并导致一代又一代基因频率的随机变化。可以通过引入理想的随机繁殖种群的概念来描述这些影响的程度(参见Falconer,1960年,第49页)。用克劳(1954)的话说,“后代来自成对的配子,它们是从父母双方均等地贡献了的无限池中随机抽取的”。这样,单个父母贡献的后代数量就具有泊松分布。

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