Summary
The proboscis extension response was used to prove the leg identity of chemosensory neurons in the homeotic appendage of theDrosophila mutantAntennapedia (Antp 73b). The data suggest that the homeotic appendage, which is morphologically characterized as a mesothoracic leg, corresponds to a mesothoracic leg as well when considering its gustatory responsiveness (Figs. 1A, B; 3A, B). The neuronal pathway which might mediate the reflex between homeotic chemoreceptors and motor neurons responsible for the proboscis extension is discussed.
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Stocker, R.F. Gustatory stimulation of a homeotic mutant appendage,Antennapedia, inDrosophila melanogaster . J. Comp. Physiol. 115, 351–361 (1977). https://doi.org/10.1007/BF00656850
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DOI: https://doi.org/10.1007/BF00656850