Cardona et al describe their research towards the Drosophila connectome here. One advantage of studying Drosophila is its lineage tracts, which are groups of neurons in discrete compartments of the brain that differentiated from the same neuroblast early in development. These allow groups of synapses to be broken up into lineage tracts by light microscopy, and analyzed individually. In the following cross section of one hemisphere, one of these lineage tracts is shown in purple:
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Network motifs in the Drosophila connectome
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Cardona et al describe their research towards the Drosophila connectome here. One advantage of studying Drosophila is its lineage tracts, which are groups of neurons in discrete compartments of the brain that differentiated from the same neuroblast early in development. These allow groups of synapses to be broken up into lineage tracts by light microscopy, and analyzed individually. In the following cross section of one hemisphere, one of these lineage tracts is shown in purple: