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Molecules and the body plan: the Hox genes of Cirripedes (Crustacea) by Emmanuèle Mouchel-Vielh; Catherine Rigolot; Jean-Michel Gibert; Jean S Deutsch is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.

What is Molecules and the body plan: the Hox genes of Cirripedes (Crustacea) about?

Among arthropods, Cirripedia (barnacles) are remarkable in that they completely lack abdominal segments. This feature prompted us to study the Hox genes of three cirripede species, representing a wide array of the diversity of these organisms, a segmented sessile barnacle, Elminius modestus (Thoracica), the parasite of a crab, Sacculina carcini (Rhizocephala), and the burrowing barnacle Trypetesa lampas (Acrothoracica). Using PCR amplification of genomic DNA and cDNA and library probing, we have found seven clear cirripedian homologues of the eight homeotic Hox genes known in insects, including labial and proboscipedia homologues, that were not previously reported in crustaceans. In addition we have isolated a divergent Antp-like gene, named Diva, that we homologize to the ftz gene of insects. The homeotic gene abdominalA (abdA) was not retrieved from any of these three cirripede species. By contrast, we have found all eight homeotic homologue genes, including abdA, in Ulophysema oeresundense, a crustacean possessing a well-developed abdomen, belonging to the Ascothoracica, generally thought to be the sister group of Cirripedia. Since we have found in barnacles homeobox-containing

Who reads Molecules and the body plan: the Hox genes of Cirripedes (Crustacea)?

Author

Emmanuèle Mouchel-Vielh; Catherine Rigolot; Jean-Michel Gibert; Jean S Deutsch

Publisher

Elsevier Science; Elsevier ; Elsevier Inc.; Elsevier BV (ISSN 1055-7903)

Published

1998

Language

EN

Field

Biochemistry, Genetics and Molecular Biology (Life Sciences)