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Literature DB >> 2806884

Genotypic variation for a quantitative character maintained under stabilizing selection without mutations: epistasis.

Abstract

A model of the gene action on a quantitative character is suggested. The model takes into account epistasis by combining multiplicative with the traditional additive approximation of the action of loci. It is demonstrated on the basis of this model that a high level of genotypic variation can be maintained in a population for a quantitative character under stabilizing selection in the absence of mutations, if there is epistasis. It is also shown that a large amount of additive variation as well as high heritability can be "hidden" in such a population and "released" if stabilizing selection is relaxed.

Mesh：

Year: 1989 PMID： 2806884 PMCID： PMC1203785

Source DB: PubMed Journal: Genetics ISSN： 0016-6731 Impact factor: 4.562

20 in total

3. Polygenic variation maintained by balancing selection: pleiotropy, sex-dependent allelic effects and G x E interactions.

Authors: Michael Turelli; N H Barton
Journal: Genetics Date: 2004-02 Impact factor: 4.562

4. Pleiotropy and multilocus polymorphisms.

Authors: A Gimelfarb
Journal: Genetics Date: 1992-01 Impact factor: 4.562

5. Genetic variation and co-variation for fitness between intra-population and inter-population backgrounds in the red flour beetle, Tribolium castaneum.

Authors: D W Drury; M J Wade
Journal: J Evol Biol Date: 2010-11-02 Impact factor: 2.411

Genotypic variation for a quantitative character maintained under stabilizing selection without mutations: epistasis.

1. On the number of segregating sites in genetical models without recombination.

2. Average number of nucleotide differences in a sample from a single subpopulation: a test for population subdivision.

3. Evolution in Mendelian Populations.

4. The Stepping Stone Model of Population Structure and the Decrease of Genetic Correlation with Distance.

5. Persistence of common alleles in two related populations or species.

6. The average number of sites separating DNA sequences drawn from a subdivided population.

7. Heritable variation and heterozygosity under a balance between mutations and stabilizing selection.

8. Linkage and selection: two locus symmetric viability model.

9. Evolutionary relationship of DNA sequences in finite populations.

10. The significance of specific distributions and functions in models of quantitative inheritance.

1. Genetic variation maintained in multilocus models of additive quantitative traits under stabilizing selection.

2. The genetic architecture of Drosophila sensory bristle number.

3. Polygenic variation maintained by balancing selection: pleiotropy, sex-dependent allelic effects and G x E interactions.

4. Pleiotropy and multilocus polymorphisms.

5. Genetic variation and co-variation for fitness between intra-population and inter-population backgrounds in the red flour beetle, Tribolium castaneum.

6. Maintenance of multilocus variability under strong stabilizing selection.

7. Bottleneck effects on genetic variance for courtship repertoire.

8. Epistasis can facilitate the evolution of reproductive isolation by peak shifts: a two-locus two-allele model.

9. Pleiotropic models of polygenic variation, stabilizing selection, and epistasis.

10. The contribution of ancestry, chance, and past and ongoing selection to adaptive evolution.