File(s) not publicly available
Limited dispersal, deleterious mutations and the evolution of sex
journal contribution
posted on 2023-06-07, 19:29 authored by Joel R PeckThis study presents a mathematical model that allows for some offspring to be dispersed at random, while others stay close to their mothers. A single genetic locus is assumed to control fertility, and this locus is subject to the occurrence of deleterious mutations. It is shown that, at equilibrium, the frequency of deleterious mutations in the population is inversely related to the rate of dispersal. This is because dispersal of offspring leads to enhanced competition among adults. The results also show that sexual reproduction can lead to a decrease in the equilibrium frequency of deleterious mutations. The reason for this relationship is that sex involves the dispersal of genetic material, and thus, like the dispersal of offspring, sex enhances competition among adults. The model is described using the example of a hermaphroditic plant population. However, the results should apply to animal populations as well.
History
Publication status
- Published
Journal
GeneticsISSN
0016-6731Publisher
The Genetics Society of AmericaPublisher URL
Issue
3Volume
142Page range
1053-1060ISBN
0016-6731Department affiliated with
- Biology and Environmental Science Publications
Full text available
- No
Peer reviewed?
- Yes