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Molecular Searching for Gill Slits in Echinoderms: Hox1 expression in Strongylocentrotus purpuratus
(Friday Harbor Laboratories, 2013-06)
The formation of gill slits is a homologous trait in most deuterostomes (including hemichordates, tunicates, lancelets, and vertebrates), however is not present in the Phylum Echinodermata. Thus, there may be a difference in gene order or gene expression. The anterior Hox1 gene is responsible for gill slit formation (among ...