ZFIN ID: ZDB-PUB-961014-917
Lateral specification of cell fate during vertebrate development
Raible, D.W. and Eisen, J.S.
Cells within equivalence groups interact via lateral specification to determine cell fates during development in Caenorhabditis elegans and other invertebrates. Populations of cells within the developing zebrafish have features similar to those of invertebrate equivalence groups. In a simple example, two identified zebrafish motoneurons behave as an equivalence pair in which one cell adopts a primary fate and interactions between the cells assign the other cell to a secondary fate. A more complicated situation exists for two initially equivalent populations of zebrafish neural crest cells. We consider whether mechanisms similar to those involved in fate specification within invertebrate equivalence groups also function furing fate specification in vertebrates.
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