Help Privacy Policy Disclaimer
  Advanced SearchBrowse




Journal Article

The antennal lobe of orthoptera - Anatomy and evolution

There are no MPG-Authors in the publication available
External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available

Ignell, R., Anton, S., & Hansson, B. (2001). The antennal lobe of orthoptera - Anatomy and evolution. Brain, behavior and evolution: official journal of thr J. B. Johnston Club, 57(1), 1-17. doi:10.1159/000047222.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0014-5D49-6
The first odor-processing neuropils of insects comprise glomeruli, islets of neuropil, that are supplied by olfactory receptor neurons and give rise to efferent axons to higher brain centers, Glomeruli size and organization varies in a taxon-specific manner across the Insecta, suggesting possible correlates between their organization and chemosensory behaviors in different insect groups. Comparative studies of antennal lobe glomeruli within the Orthoptera have been used to infer how the various taxon-specific arrangements of odorant-processing structures (glomeruli) might have evolved. The cellular arrangements in glomeruli have been surveyed using anterograde filling and Golgi impregnation of antennal receptor neurons projecting to the antennal lobe in Stenopelmatidae, Tettigoniidae, Gryllidae, Tetrigidae and Acrididae. These taxa, which represent the two suborders of Orthoptera, reveal a high correlation between the neural architecture of the glomeruli and structures within the glomeruli, Using a recent molecular phylogeny of the Orthoptera we have mapped the occurrence of glomerular characteristics to infer the evolution of antennal lobe structures in orthopterans. The functional implications of these results are discussed. Copyright (C) 2001 S. Karger AG, Basel.