Caballero A
Institute of Cell, Animal and Population Biology, University of Edinburgh, Scotland.
Genetics. 1995 Feb;139(2):1007-11. doi: 10.1093/genetics/139.2.1007.
Inconsistencies between equations for the effective population size of populations with separate sexes obtained by two different approaches are explained. One approach, which is the most common in the literature, is based on the assumption that the sex of the progeny cannot be identified. The second approach incorporates identification of the sexes of both parents and offspring. The approaches lead to identical expressions for effective size under some situations, such as Poisson distributions of offspring numbers. In general, however, the first approach gives incorrect answers, which become particularly severe for sex-linked genes, because then only numbers of daughters of males are relevant. Predictions of the effective size for sex-linked genes are illustrated for different systems of mating.
本文解释了通过两种不同方法得出的、具有不同性别的种群有效种群大小方程之间的不一致性。一种方法是文献中最常用的，基于后代性别无法识别的假设。第二种方法纳入了对父母和后代性别的识别。在某些情况下，例如后代数量的泊松分布，这两种方法会得出相同的有效大小表达式。然而，一般来说，第一种方法给出的答案是错误的，对于性连锁基因而言，这种错误尤其严重，因为此时只有雄性的女儿数量是相关的。针对不同的交配系统，展示了性连锁基因有效大小的预测。
