Holsinger Kent E
Department of Biological, Sciences Stanford University, Stanford, CA, 94305-2493.
Evolution. 1986 Mar;40(2):405-413. doi: 10.1111/j.1558-5646.1986.tb00480.x.
Intermediate rates of self-fertilization can be evolutionarily stable when the progeny of self-fertilization events are less successful migrants than those of outcrossing events, unless self-fertilization reduces an individual's contribution to the pollen pool by an amount equal to the rate at which it self-fertilizes. This result holds regardless of whether pollen or diaspores are more widely dispersed. The differential migration of selfed and outcrossed progeny may be a result of differential establishment with comparable rates of dispersal, or it may be a result of differential dispersal rates. In the first case, detailed predictions concerning the evolutionarily stable selfing rate can be made. In the second case, only qualitative predictions are possible in the absence of specific assumptions about how the migration rate is affected by the average selfing rate in each subpopulation.
当自花受精事件的后代作为迁移者的成功率低于异花受精事件的后代时,中等程度的自花受精率在进化上可能是稳定的,除非自花受精使个体对花粉库的贡献减少的量等于其自花受精的速率。无论花粉还是传播体的传播范围更广,这一结果都成立。自交和异交后代的差异迁移可能是在传播速率相当的情况下建立差异的结果,也可能是传播速率差异的结果。在第一种情况下,可以对进化上稳定的自交率做出详细预测。在第二种情况下,在没有关于每个亚种群中迁移率如何受平均自交率影响的具体假设时,只能做出定性预测。