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Namely, if two or more subpopulations have different allele frequencies, the overall heterozygosity is reduced, even if the subpopulations themselves are in a Hardy–Weinberg equilibrium. The underlying causes of this population subdivision could be geographic barriers to gene flow followed by genetic drift in the subpopulations. The Wahlund effect … The Wahlund Effect and F Statistics -- The Interaction of Drift and Gene Flow The distribution of genetic variation within and between demes is primarily due to the balance between gene flow and drift. We can measure this balance by a set of "F statistics." This yields yet another interpretation of the phrase "inbreeding coefficient." What the Wahlund effect does. If you sample from subpopulations that have diverged sufficiently, you will observe an overall deficiency of heterozygotes . Simplest qualitative intuition may come from thinking of populations fixed for different alleles (expectation of fixation = frequency of allele in source, starting or founder population). Wahlund effect.

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Namely, if two or more subpopulations have different allele frequencies, the overall heterozygosity is reduced, even if the subpopulations themselves are in a Hardy–Weinberg equilibrium. The underlying causes of this population subdivision could be geographic barriers to gene flow followed by genetic drift in the subpopulations. The Wahlund effect was What the Wahlund effect does. If you sample from subpopulations that have diverged sufficiently, you will observe an overall deficiency of heterozygotes . Simplest qualitative intuition may come from thinking of populations fixed for different alleles (expectation of fixation = frequency of allele in source, starting or founder population). The Wahlund Effect and F Statistics -- The Interaction of Drift and Gene Flow The distribution of genetic variation within and between demes is primarily due to the balance between gene flow and drift.

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• In general, allele frequencies will become more homogeneous among the populations. • Some models for migration inherently include nonrandom mating (Wahlund effect, for example).
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9. •Migration genetically links two or more populations together.

definierar konsumentbaserat varumärkeskapital som: the differential effect of  • Sampling effects are most important when the allele is present in a small number of copies. 9.
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For each locus in each subsample, the number of genotypes dropped out corresponded to the inferior integer corresponding to d Hitta rätt Wahlund i Sverige.