UPPER BOUND ON THE RATE OF ADAPTATION IN AN ASEXUAL POPULATION

被引：5

作者：

Kelly, Michael ^{[1
]}

机构：

[1] Univ Calif San Diego, Dept Math, La Jolla, CA 92093 USA

来源：

ANNALS OF APPLIED PROBABILITY | 2013年 / 23卷 / 04期

关键词：

Evolutionary process; Moran model; selection; adaptation rate; LINKAGE;

D O I：

10.1214/12-AAP873

中图分类号：

O21 [概率论与数理统计]; C8 [统计学];

学科分类号：

020208 ; 070103 ; 0714 ;

摘要：

We consider a model of asexually reproducing individuals. The birth and death rates of the individuals are affected by a fitness parameter. The rate of mutations that cause the fitnesses to change is proportional to the population size, N. The mutations may be either beneficial or deleterious. In a paper by Yu, Etheridge and Cuthbertson [Ann. Appl. Probab. 20 (2010) 978-1004] it was shown that the average rate at which the mean fitness increases in this model is bounded below by log(1-delta) N for any delta > 0. We achieve an upper bound on the average rate at which the mean fitness increases of O (log N/(log log N)(2)).

引用

页码：1377 / 1408

页数：32

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