title: Xenopus Six1 gene is expressed in neurogenic cranial placodes and maintained in the differentiating lateral lines.
abstract: Six genes are homeobox-containing transcription factors, many of which are expressed in head structures. We isolated a full-length cDNA of a previously unknown Xenopus member of this family. It shares a high sequence homology with mouse and human Six1, which during development are expressed in mesoderm and muscle. In contrast, XSix1 is prominently expressed in all neurogenic cephalic placodes and lateral line primordia from neurula to tadpole stages. The neurons derived from these placodes do not express XSix1, but the lateral line mechanoreceptors maintain expression. XSix1 is weakly expressed in muscle later in development.
authors.affiliation: Department of Biochemistry, University of Ulm, Ulm, Germany.
authors.forename: P D
authors.initials: PD
authors.lastname: Pandur
authors.forename: S A
authors.initials: SA
authors.lastname: Moody
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D002490:Central Nervous System / Q000196:embryology; D017931:DNA Primers / Q000235:genetics; D018076:DNA, Complementary / Q000235:genetics; D018507:Gene Expression Regulation, Developmental; D018398:Homeodomain Proteins / Q000235:genetics*; D006801:Humans; D017403:In Situ Hybridization; D051379:Mice; D008969:Molecular Sequence Data; D012679:Sense Organs / Q000196:embryology; D014981:Xenopus / Q000196:embryology* / Q000235:genetics*
chemical_list: D017931:DNA Primers; D018076:DNA, Complementary; D018398:Homeodomain Proteins; C099236:SIX1 protein, human; C490947:Six1 protein, mouse