Frank S A
J Theor Biol. 1986 Oct 7;122(3):303-9. doi: 10.1016/s0022-5193(86)80122-9.
Price's method for analyzing natural selection in subdivided populations is applied to the problem of dispersal polymorphism strategies in a stable habitat. The results agree with the more traditional Mendelian models for this same problem that have recently been published. Further, by using Price's method, the results obtained are simpler and more general, and the causal evolutionary mechanisms underlying the predicted patterns are more easily recognized. The most interesting new result is that the equilibrium proportion of dispersed individuals is a simple function of the risk of dispersing and the regression coefficient of relatedness among individuals who, in the absence of dispersal, would compete for a limited, local resource. This regression coefficient refers to the genotypes that control the dispersal phenotype. For example, when mothers control the phenotype of their progeny, then the regression is from the mother onto an offspring chosen randomly from the local group before dispersal; while when offspring control their own phenotype, the regression is taken directly from offspring onto a randomly chosen cohort member before dispersal. This use of controlling genotypes to calculate regressions explains the form of the parent-offspring conflict over dispersal noted by previous authors. The simplicity and generality of these results suggest that Price's method is a useful approach for studying the class of phenomena known as "games among relatives".
普赖斯分析细分种群中自然选择的方法被应用于稳定栖息地中扩散多态性策略的问题。结果与最近发表的针对同一问题的更传统孟德尔模型一致。此外，通过使用普赖斯的方法，得到的结果更简单、更具普遍性，并且预测模式背后的因果进化机制更容易识别。最有趣的新结果是，扩散个体的平衡比例是扩散风险以及在没有扩散的情况下会争夺有限本地资源的个体之间亲缘关系回归系数的简单函数。这个回归系数指的是控制扩散表型的基因型。例如，当母亲控制其后代的表型时，回归是从母亲到在扩散前从本地群体中随机选择的一个后代；而当后代控制自身表型时，回归是直接从后代到在扩散前随机选择的一个同群成员。使用控制基因型来计算回归解释了先前作者所指出的亲代与子代在扩散问题上的冲突形式。这些结果的简单性和普遍性表明，普赖斯的方法是研究被称为“亲属间博弈”这类现象的有用方法。
