| Literature DB >> 6575397 |
Abstract
The evolution of multigene families whose members are dispersed into two or more nonhomologous chromosomes is studied from the standpoint of population genetics. By using a simple model of gene conversion, equilibrium and transient properties of the probability of identity of genes belonging to the family are investigated. Also, the time until fixation of a mutant belonging to a subdivided multigene family is studied by an approximation method. It is shown that dispersion of the family into two or more chromosomes has a relatively minor effect on the extent of identity between genes, unless the conversion rate between genes on nonhomologous chromosomes is extremely low, or unless the number of nonhomologous chromosomes on which gene members are dispersed is large.Mesh:
Year: 1983 PMID: 6575397 PMCID: PMC394204 DOI: 10.1073/pnas.80.13.4079
Source DB: PubMed Journal: Proc Natl Acad Sci U S A ISSN: 0027-8424 Impact factor: 11.205