Letter | Published:

Intra- and Interpopulation Selection concerning the Alcohol Dehydrogenase Locus in Drosophila melanogaster

Naturevolume 247pages369371 (1974) | Download Citation

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Abstract

Lewontin and Hubby1 have shown, by means of protein electrophoresis, that about one third of the loci in Drosophila pseudoobscura populations are polymorphic. Comparable studies by others have provided similar figures for a variety of species including man2,3. Some authors4–6 have argued that the observed protein variation is merely a product of mutation and drift of neutral variants and is not maintained by selection. This view is severely criticised by others7,8, who stress the importance of selective forces. Indications for the operation of selective forces have mainly come, until now, from studies on geographical variation9,10. Direct experimental evidence, concerning the relative selective values of electrophoretic variants is, however, scarce. In one well-documented case, Yamazaki11 did not find selective differences between esterase-5 variants in D. pseudoobscura.

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References

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Affiliations

  1. Biological Centre, Department of Genetics, University of Groningen, Haren (Gn), The Netherlands

    • E. BIJLSMA-MEELES
    •  & W. VAN DELDEN

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https://doi.org/10.1038/247369a0

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