Journal of Biosciences

, Volume 39, Issue 4, pp 565–574 | Cite as

A map of taste neuron projections in the Drosophila CNS

  • Jae Young Kwon
  • Anupama Dahanukar
  • Linnea A Weiss
  • John R Carlson


We provide a map of the projections of taste neurons in the CNS of Drosophila. Using a collection of 67 GAL4 drivers representing the entire repertoire of Gr taste receptors, we systematically map the projections of neurons expressing these drivers in the thoracico-abdominal ganglion and the suboesophageal ganglion (SOG). We define 9 categories of projections in the thoracico-abdominal ganglia and 10 categories in the SOG. The projection patterns are modular, and can be interpreted as combinations of discrete pattern elements. The elements can be interpreted in terms of the taste organ from which the projections originate, the structures from which they originate, and the quality of taste information that they represent. The extensive diversity in projection patterns provides an anatomical basis for functional diversity in responses elicited by different taste stimuli.


Drosophila taste taste receptors 



We thank Zev Wisotsky for determining the pattern of Gr64d-GAL4 labelling in the SOG. This work was supported by NIH grants to JC.


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Copyright information

© Indian Academy of Sciences 2014

Authors and Affiliations

  • Jae Young Kwon
    • 1
    • 3
  • Anupama Dahanukar
    • 2
    • 3
  • Linnea A Weiss
    • 3
  • John R Carlson
    • 3
  1. 1.Department of Biological SciencesSungkyunkwan UniversitySuwonRepublic of Korea
  2. 2.Department of EntomologyUniversity of CaliforniaRiversideUSA
  3. 3.Department of Molecular, Cellular and Developmental BiologyYale UniversityNew HavenUSA

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