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Dev Genes Evol. 1998 Feb;207(8):515-23.

Cihox5, a new Ciona intestinalis Hox-related gene, is involved in regionalization of the spinal cord.

Author information

1
Laboratory of Biochemistry and Molecular Biology, Stazione Zoologica "Anton Dohrn", Villa Comunale, I-80121 Naples, Italy.

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.

PMID:
9510546
DOI:
10.1007/s004270050142
[Indexed for MEDLINE]

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