GENETICS OF MUTUALISM - THE EVOLUTION OF ALTRUISM BETWEEN SPECIES
GENETICS OF MUTUALISM - THE EVOLUTION OF ALTRUISM BETWEEN SPECIES
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DOI：
10.1006/jtbi.1994.1200
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发表时间：
1994-10-21
影响因子：
2
通讯作者：
FRANK, SA
中科院分区：
文献类型：
--
作者：
FRANK, SA
分析了自然选择有利于一个个体帮助另一个物种，但代价是其自身繁殖的条件。传统的物种间利他主义进化模型关注的是互惠互利的伙伴物种的原始捐赠者和回报接受者之间的遗传联系。这里分析了一个更一般的模型，该模型侧重于由遗传变异引起的伙伴物种之间的协同效应。该模型表明，利他主义的传播被物种之间的空间相关性所增强，这种遗传倾向为伴侣提供帮助。物种间的这些空间相关性类似于决定物种内社会进化进程的亲缘关系选择系数。该模型还表明，自然选择和生态动态可以在不同物种的邻居之间创造遗传相关性，即使物种的初始空间分布是不相关的。物种间的遗传相关性可能在物种间利他行为的起源和维持中发挥重要作用。
Conditions are analyzed under which natural selection favors an individual to help another species at a cost to its own reproduction. Traditional models for the evolution of altruism between species focus on the genetic relatedness between the original donor and the recipients of return benefit's from the mutualistic partner species. A more general model is analyzed here that focuses on the synergistic effects between partner species caused by genetic variability. The model shows that the spread of altruism is enhanced by spatial correlations between species in the genetic tendency to give aid to partners. These spatial correlations between species are similar to the kin selection coefficients of relatedness that determine the course of social evolution within species. The model also shows that natural selection and ecological dynamics can create genetic correlations between neighbors of different species, even when the initial spatial distributions of the species are uncorrelated. Genetic correlations between species may play an important role in the origin and maintenance of altruism between species.