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Related Experiment Videos

Selection for digging behavior in Drosophila melanogaster larvae.

R Godoy-Herrera

    Behavior Genetics
    |September 1, 1978
    PubMed
    Summary
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    Genetica·1996
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    Heredity·1994
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    Inter- and intrapopulational variation in digging in Drosophila melanagaster larvae.

    Behavior genetics·1977

    Selective breeding revealed the genetic basis of digging behavior in fruit flies (Drosophila melanogaster). While low digging was achievable, high digging was not, indicating polygenic control and effects on pupation site selection.

    Area of Science:

    • Behavioral genetics
    • Animal behavior
    • Evolutionary biology

    Background:

    • Digging behavior in Drosophila melanogaster larvae is a complex trait.
    • Understanding the genetic architecture of behavioral traits is crucial for evolutionary studies.

    Purpose of the Study:

    • To investigate the genetic control of digging behavior in Drosophila melanogaster larvae using selective breeding.
    • To determine if digging behavior is influenced by polygenic inheritance.

    Main Methods:

    • Selective breeding experiments were conducted on Drosophila melanogaster larvae to favor low and high digging activity.
    • Phenotypic data on digging behavior and pupation site selection were recorded.

    Main Results:

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  • Selection for low digging activity was successful, demonstrating genetic variation for this trait.
  • Selection for high digging activity was unsuccessful, suggesting limitations or complexities in the genetic control.
  • Both low and high digging selection lines showed altered pupation site selection, indicating a genetic correlation between these behaviors.

    • Conclusions:

    • Digging behavior in Drosophila melanogaster larvae is likely under polygenic control.
    • The genetic factors influencing digging behavior may also affect other crucial life-history traits, such as pupation site selection.