Summary
The pathway of adult sensory nerves has been analysed in three experimental situations: (i) in flies with grossly abnormal thoracic morphology resulting from X-irradiation early during development, (ii) in flies which had been subjected to surgical operations late in the larval period, (iii) in homoeotic mutants. The results provide experimental support for a simple mechanism in which developing adult axons join the nearest larval nerve and are guided by it up to the central nervous system. In particular, experimental interference with normal development can result in nerves from different segments, or from dorsal and ventral appendages, joining each other and entering the central nervous system together.
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Ghysen, A., Deak, I.I. Experimental analysis of sensory nerve pathways inDrosophila . Wilhelm Roux' Archiv 184, 273–283 (1978). https://doi.org/10.1007/BF00848386
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DOI: https://doi.org/10.1007/BF00848386