CULTURAL AND BIOLOGICAL EVOLUTIONARY PROCESSES, SELECTION FOR A TRAIT UNDER COMPLEX TRANSMISSION
CULTURAL AND BIOLOGICAL EVOLUTIONARY PROCESSES, SELECTION FOR A TRAIT UNDER COMPLEX TRANSMISSION
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DOI：
10.1016/0040-5809(76)90047-2
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发表时间：
1976-01-01
影响因子：
1.4
通讯作者：
CAVALLISFORZA, LL
中科院分区：
文献类型：
--
作者：
FELDMAN, MW;CAVALLISFORZA, LL
在遗传和表型传递下考虑性状的进化。一个人总是出生在一个州，但在成年之前可以转换到另一个州。如果转换是通过学习过程发生的，那么原生状态就被称为非熟练状态，而通过学习获得的状态则被称为熟练状态。如果表型转换是通过感染的方式发生的，则原生状态为未感染状态，并且可以转换为感染状态。原生表型和转化表型可能受到选择的影响；获得一项技能可能导致熟练与不熟练的选择优势，而感染一种疾病可能涉及选择劣势。转换概率是亲本表型的函数。在一些模型中，假设只有一方父母有教学能力（或传播疾病），而在其他模型中，则考虑更一般的情况。学习（或患病）的概率可能由个体的基因型决定。考虑双等位基因座。在各种情况下研究了基因型和表型的进化。均衡，并在一些简单的情况下，动态的表型和基因型的群体，给出。在这种情况下，杂合子优势的通常平衡取决于学习过程的参数。振荡平衡和一个以上的稳定平衡在某些情况下可以存在。即使在转换概率没有基因型差异的情况下，基因频率也可能发生变化。
The evolution of a trait under genetic and phenotypic transmission is considered. An individual is always born in 1 state but can be converted to the other before reaching adulthood. If the conversion takes place by a learning process, the native state is called unskilled, and that acquired by learning is called skilled. If phenotype conversion takes place by way of infection, the native state is uninfected, and can be converted to infected. Native and converted phenotypes may be subject to selection; acquiring a skill may lead to selective advantage of skilled vs. unskilled, while contracting a disease may involve a selective disadvantage. Conversion probability is a function of the parental phenotypes. In some models it is assumed that only 1 parent had teaching ability (or transmits the disease) and in others more general situations are considered. The probability of learning (or of taking the disease) may be determined by the individual''s genotype. A diallelic locus is considered. The evolution of the genotypes and the phenotypes is studied in a variety of situations. Equilibria, and in a few simple cases the dynamics of the phenotypes and genotypes in the population, are given. The usual equilibrium for heterozygote advantage depends, in the present case, on the parameters of the learning process. Oscillatory equilibria and more than 1 stable equilibrium can exist in certain circumstances. Even in the absence of genotypic differences for the conversion probability gene frequencies may change.