Expression of a Hox gene, Cnox-2, and the division of labor in a colonial hydroid.
basic_science · Level V
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- Record sourced from PubMed, PMID 10051615.
- Also identified by PMC identifier 26757.
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Abstract
We report the isolation and expression of the Hox gene, Cnox-2, in Hydractinia symbiolongicarpus, a hydrozoan displaying division of labor. We found different patterns of aboral-to-oral Cnox-2 expression among polyp polymorphs, and we show that experimental conversion of one polyp type to another is accompanied by concordant alteration in Cnox-2 expression. Our results are consistent with the suggestion that polyp polymorphism, characteristic of hydractiniid hydroids, arose via evolutionary modification of proportioning of head to body column.
Medical subject headings
- Genes, Homeobox
- Homeodomain Proteins
- Hydra
- Polymorphism, Genetic
- Protozoan Proteins