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Dev Genes Evol. 1999 Jan;209(1):59-62.

A Caenorhabditis elegans homeobox gene expressed in the male tail, a link between pattern formation and sexual dimorphism?

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Department of Cell Biology, Biozentrum, University of Basel, Klingelbergstrasse 70, CH-4056 Basel, Switzerland.


ceh-7 is a small Caenorhabditis elegans homeobox gene. We have shown that this gene is transcribed. Examination of the expression pattern of ceh-7 using reporter constructs revealed that it is expressed in a few cells of the male tail, which form a ring around the rectum. The most posterior member of the C. elegans Hox cluster, egl-5, an Abd-B homologue, has previously been shown to be required for the proper development of several blast cells in the male tail. We have examined the expression of ceh-7 in mutant backgrounds of egl-5 and also mab-5, an Antp/Ubx/Abd-A homologue. We find that ceh-7 is not expressed in egl-5 mutants, but is still expressed in mab-5 mutants.

[Indexed for MEDLINE]

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