6533b7d5fe1ef96bd126503a
RESEARCH PRODUCT
Segmental Organization of Cephalic Ganglia in Arthropods
R. UrbachG.m. Technausubject
Central nervous systemAnatomyBiologybiology.organism_classificationNeuromereengrailedGanglionmedicine.anatomical_structureHead segmentationSupraesophageal ganglionmedicineArthropodHox geneNeurosciencedescription
Cephalic ganglia in arthropods encompass neuromeres of the supraesophageal ganglion (i.e., the brain) and the subesophageal ganglion. Whereas neuromeres of the subesophageal ganglion are clearly distinguishable, the segmental pattern of the brain is derived and less well understood. In this article, we give an overview of the current state of a long-lasting debate on the segmental organization of the arthropod head and brain, discussing embryonic morphological and molecular data, with a main focus on insects. Embryonic expression data on key developmental genes such as engrailed, orthodenticle, and Hox genes will be summarized to compare the metameric organization of the head (sub- and supraesophageal ganglia) and corresponding ganglia of the central nervous system among different arthropod groups.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2007-01-01 |