一种人口统计学的选择方法。
A demographic approach to selection.
作者信息
Anderson W W, Watanabe T K
机构信息
Genetics Department, University of Georgia, Athens, GA 30602-7223, USA.
出版信息
Proc Natl Acad Sci U S A. 1997 Jul 22;94(15):7742-7. doi: 10.1073/pnas.94.15.7742.
Abstract
The concepts of demography provide a means of combining the ecological approach to population growth with the genetical approach to natural selection. We have utilized the demographic theory of natural selection developed by Norton and Charlesworth to analyze life history schedules of births and deaths for populations of genotypes in Drosophila pseudoobscura. Our populations illustrate a stable genetic equilibrium, an unstable genetic equilibrium, and a case of no equilibrium. We have estimated population growth rates and Darwinian fitnesses of the genotypes and have explored the role of population growth in determining natural selection. The age-specific rates of births and deaths provide insights into components of selection. Both viability and fertility are important components in our populations.
摘要
人口统计学的概念提供了一种方法，将人口增长的生态学方法与自然选择的遗传学方法结合起来。我们利用诺顿和查尔斯沃思提出的自然选择人口统计学理论，分析了拟暗果蝇基因型群体的出生和死亡生命史时间表。我们的群体展示了一种稳定的遗传平衡、一种不稳定的遗传平衡以及一种无平衡的情况。我们估计了基因型的种群增长率和达尔文适合度，并探讨了种群增长在决定自然选择中的作用。特定年龄的出生率和死亡率为选择的组成部分提供了见解。在我们的群体中，生存力和繁殖力都是重要的组成部分。
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