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Neurons associated with the dorsal longitudinal flight muscles of Drosophila melanogaster
Author(s) -
Coggshall John C.
Publication year - 1978
Publication title -
journal of comparative neurology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.855
H-Index - 209
eISSN - 1096-9861
pISSN - 0021-9967
DOI - 10.1002/cne.901770410
Subject(s) - biology , anatomy , dorsum , horseradish peroxidase , ganglion , cell bodies , ventral nerve cord , axon , neuroscience , drosophila melanogaster , thoracic ganglia , interneuron , neuron , nervous system , central nervous system , biochemistry , gene , inhibitory postsynaptic potential , enzyme
The anatomy of the neurons associated with the six fibers formingthe dorsal longitudinal flight muscle (DLM) of Drosophila melanogaster has been investigated using a horseradish peroxidase label. The two dorsal‐most fibers are innervated by the same neuron whose cell body is in the dorsal, contralateral, mesothoracic region of the thoracic ganglion. The ventral‐most fourfibers are innervated by four neurons whose cell bodies are clusteredin the ventral, ipsilateral, prothoracic region. The processes ofallfive of these cells ramify extensively in the dorsal part of theipsilateral and contralateral mesothoracic neuromeres. A large interneuron has been discovered which is associated with the DLM and whose cell body is located contralaterally. Several neurons with small cell bodies on the ventral midline of the mesothoracic neuromere are also consistently labeled. A single fiber projects dorsally from a midline cell body, forms a Y‐branch near the top of the ganglion and apparently sends an axon into each posterior dorsal mesothoracic nerve (PDMN) subsequently innervating the DLM.