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Diverse neuronal lineages make stereotyped contributions to the Drosophila locomotor control center, the central complex
Author(s) -
Yang Jacob S.,
Awasaki Takeshi,
Yu HungHsiang,
He Yisheng,
Ding Peng,
Kao JuiChun,
Lee Tzumin
Publication year - 2013
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.23339
Subject(s) - biology , neuroblast , neuroscience , drosophila (subgenus) , anatomy , insect , evolutionary biology , genetics , gene , botany , neurogenesis
The Drosophila central brain develops from a fixed number of neuroblasts. Each neuroblast makes a clone of neurons that exhibit common trajectories. Here we identified 15 distinct clones that carry larval‐born neurons innervating the Drosophila central complex (CX), which consists of four midline structures including the protocerebral bridge (PB), fan‐shaped body (FB), ellipsoid body (EB), and noduli (NO). Clonal analysis revealed that the small‐field CX neurons, which establish intricate projections across different CX substructures, exist in four isomorphic groups that respectively derive from four complex posterior asense‐negative lineages. In terms of the region‐characteristic large‐field CX neurons, we found that two lineages make PB neurons, 10 lineages produce FB neurons, three lineages generate EB neurons, and two lineages yield NO neurons. The diverse FB developmental origins reflect the discrete input pathways for different FB subcompartments. Clonal analysis enlightens both development and anatomy of the insect locomotor control center. J. Comp. Neurol. 521:2645–2662, 2013. © 2013 Wiley Periodicals, Inc.