Alternating patterns of cell surface properties and neural crest cell migration during segmentation of the chick hindbrain

Lumsden, Andrew and Guthrie, Sarah (1991) Alternating patterns of cell surface properties and neural crest cell migration during segmentation of the chick hindbrain. Development (113). pp. 9-15. ISSN 0950-1991

[img] PDF - Published Version
Download (778kB)

Abstract

The developing chick hindbrain is transiently divided into a series of repeating units or rhombomeres. Recent work has shown that an alternating periodicity exists both in the cell surface properties of rhombomeres and in the segmental origin of hindbrain neural crest cells. Experiments in which rhombomeres from different axial levels were confronted in the absence of an interrhombomere boundary showed that odd-numbered segments 3 and 5 combined without generating a boundary, as did even-numbered segments 2, 4 and 6. When rhombomeres originating from adjacent positions, or three rhombomeres distant from one another were combined, a new boundary was regenerated. Mapping of the migration pathways of neural crest cells showed that odd-numbered and even-numbered rhombomeres share properties with respect to the production of neural crest cells. In the hindbrain region the neural crest is segregated into streams. Neural crest cells migrating from rhombomeres 1 and 2, rhombomere 4 and rhombomere 6 respectively populate distinct cranial nerve ganglia and branchial arches. In contrast, rhombomeres 3 and 5 are free of neural crest cells.

Item Type: Article
Schools and Departments: School of Life Sciences > Neuroscience
Depositing User: Stephanie McGuire
Date Deposited: 21 Jul 2017 14:45
Last Modified: 21 Jul 2017 15:19
URI: http://sro.sussex.ac.uk/id/eprint/69393

View download statistics for this item

📧 Request an update