ISSN:
1432-041X
Keywords:
Key words Ascidians
;
Neural tube
;
CNS regionalization
;
Hox
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract In this paper we report the cloning, sequence and expression analysis of a new Ciona intestinalis hox gene. On the basis of sequence comparison with mammalian and Amphioxus homologues, we called this gene Cihox5. Northern blot analysis reveals a single transcript of about 1.3 kb in length, that is present from neurula until larva stage. Whole-mount in situ hybridization shows restricted expression of this gene in putative blood cells precursors and in a regional domain of the spinal chord. Expression in the spinal cord is attributed to ependymal cells. This result implies a role for this gene in primitive regionalization of spinal cord along the anteroposterior axis in the absence of neuronal bodies.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s004270050142
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