Abstract
The effects produced on linked neutral loci as a selected locus evolves towards its equilibrium value are considered. Significant effects on the neutral loci arise if the recombination fraction between the neutral and selected loci is smaller than the order of magnitude of the selective differences at the selected locus. The effect on gene frequencies at the neutral loci, that is, the hitchhiking effect, is determined, as well as the linkage disequilibrium generated by this hitchhiking effect. One of the more important findings is that significant disequilibrium can be generated between two neutral loci by the evolution of a linked selected locus. Consideration is given to the problem of determining how the effect of selection operating in natural populations can be detected, the question of the establishment of inversions in populations, and also to the nonequilibrium properties of populations.
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Selected References
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- Bodmer W. F. Evolutionary significance of the HL-A system. Nature. 1972 May 19;237(5351):139–passim. doi: 10.1038/237139a0. [DOI] [PubMed] [Google Scholar]
- Feldman M. W., Christiansen F. B. The effect of population subdivision on two loci without selection. Genet Res. 1974 Oct;24(2):151–162. doi: 10.1017/s0016672300015184. [DOI] [PubMed] [Google Scholar]
- Feldman M. W., Franklin I., Thomson G. J. Selection in complex genetic systems. I. The symmetric equilibria of the three-locus symmetric viability model. Genetics. 1974 Jan;76(1):135–162. doi: 10.1093/genetics/76.1.135. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Harris H. Enzyme polymorphisms in man. Proc R Soc Lond B Biol Sci. 1966 Mar 22;164(995):298–310. doi: 10.1098/rspb.1966.0032. [DOI] [PubMed] [Google Scholar]
- Hubby J. L., Lewontin R. C. A molecular approach to the study of genic heterozygosity in natural populations. I. The number of alleles at different loci in Drosophila pseudoobscura. Genetics. 1966 Aug;54(2):577–594. doi: 10.1093/genetics/54.2.577. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Karlin S., Carmelli D. Numerical studies on two-loci selection models with general viabilities. Theor Popul Biol. 1975 Jun;7(3):399–421. doi: 10.1016/0040-5809(75)90026-x. [DOI] [PubMed] [Google Scholar]
- Karlin S., Feldman M. W. Linkage and selection: two locus symmetric viability model. Theor Popul Biol. 1970 May;1(1):39–71. doi: 10.1016/0040-5809(70)90041-9. [DOI] [PubMed] [Google Scholar]
- Karlin S. General two-locus selection models: some objectives, results and interpretations. Theor Popul Biol. 1975 Jun;7(3):364–398. doi: 10.1016/0040-5809(75)90025-8. [DOI] [PubMed] [Google Scholar]
- Karlin S., McGregor J. Rates and probabilities of fixation for two locus random mating finite populations without selection. Genetics. 1968 Jan;58(1):141–159. doi: 10.1093/genetics/58.1.141. [DOI] [PMC free article] [PubMed] [Google Scholar]
- O'Brien S. J., MacIntyre R. J. Transient linkage disequilibrium in Drosophila. Nature. 1971 Apr 2;230(5292):335–336. doi: 10.1038/230335a0. [DOI] [PubMed] [Google Scholar]
- Ohta T., Kimura M. Linkage disequilibrium at steady state determined by random genetic drift and recurrent mutation. Genetics. 1969 Sep;63(1):229–238. doi: 10.1093/genetics/63.1.229. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Prakash S., Levitan M. Associations of alleles of the esterase-1 locus with gene arrangements of the left arm of the second chromosome in Drosophila robusta. Genetics. 1973 Oct;75(2):371–379. doi: 10.1093/genetics/75.2.371. [DOI] [PMC free article] [PubMed] [Google Scholar]
- SHEPPARD P. M. The evolution of mimicry: a problem in ecology and genetics. Cold Spring Harb Symp Quant Biol. 1959;24:131–140. doi: 10.1101/sqb.1959.024.01.013. [DOI] [PubMed] [Google Scholar]
- Stam P. Linkage disequilibrium causing selection at a neutral locus in pooled Tribolium populations. Heredity (Edinb) 1975 Feb;34(1):29–38. doi: 10.1038/hdy.1975.3. [DOI] [PubMed] [Google Scholar]
- Sved J. A. The stability of linked systems of loci with a small population size. Genetics. 1968 Aug;59(4):543–563. doi: 10.1093/genetics/59.4.543. [DOI] [PMC free article] [PubMed] [Google Scholar]
