The Functional Significance of Regulatory Gene Variation: The α-Amylase Gene-Enzyme System of Drosophila melanogaster

  • A. J. Klarenberg


One of the main topics in population and evolutionary genetics has been the question whether electrophoretic variants, encoded by a single structural gene and involved in the same biochemical reaction, are selectively neutral (Nei and Koehn 1983). Only for a very few enzyme loci have selective differences between enzyme variants been established; α-amylase in the fruitfly, Drosophila melanogaster, is among the best characterized (Scharloo 1984). The significance of regulatory variation has only been recently recognized (Maclntyre 1982; Wilson 1985).


Starch Cage Recombination Amylase 


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Copyright information

© Springer-Verlag Berlin Heidelberg 1988

Authors and Affiliations

  • A. J. Klarenberg
    • 1
  1. 1.Vakgroep Populatie- en EvolutiebiologieRijksuniversiteit UtrechtUtrechtThe Netherlands

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