Genetic Analysis of a Complex Chemoreceptor

  • Obaid Siddiqi
  • Veronica Rodrigues
Part of the Basic Life Sciences book series (BLSC, volume 16)


Taste responses of Dipterans have been extensively investigated for more than three decades. V.G. Dethier (1955) used the proboscis extention test to measure the natural preferences of the flies to different chemicals. He found that blowflies accepted sugars and rejected common salt or quinine. If a mixture of an attractant and a repellent was presented, the fly’s response was determined by the ratio of the two substances. Hodgson, Lettvin and Roeder (1955) first recorded the electrical responses of the Dipteran chemoreceptors. Since then a number of workers have attempted to correlate the electrophysiological and behavioral responses of a variety of flies. (See review by Hodgson, 1974.) It is evident that taste discrimination in insects, as in mammals, is based upon a small set of categoric distinctions, but the exact nature of the sensory code remains unknown (Perkel and Bullock, 1969).


Taste Cell Electrophysiological Response Quinine Sulfate Sensory Code Taste Response 
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Copyright information

© Springer Science+Business Media New York 1980

Authors and Affiliations

  • Obaid Siddiqi
    • 1
  • Veronica Rodrigues
    • 1
  1. 1.Molecular Biology UnitTata Institute of Fundamental ResearchBombayIndia

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