title: An embryological study of ventralization of dorsal structures in the tail of medaka (Oryzias latipes) Da mutants.
abstract: In adult Da (double anal fin) mutants of medaka (Oryzias latipes), structures such as the dorsal fin and the dorsal half of the caudal fin are ventralized in adult fish. However, there have been few embryological studies of the development of mutant phenotypes except those of the caudal fin. In this study, development of mutant phenotypes of the tail where they typically develop was examined morphologically at various stages of embryogenesis. The arrangement of melanocytes along the dorsal midline, the shape of the dorsal fin fold, and the shape of the dorsal myotome exhibited a ventral pattern in the tail at various embryonic stages in Da mutants.
authors.affiliation: Department of Basic Biology, Graduate School of Science, Nagoya University, Japan.
authors.forename: G
authors.initials: G
authors.lastname: Tamiya
authors.forename: Y
authors.initials: Y
authors.lastname: Wakamatsu
authors.forename: K
authors.initials: K
authors.lastname: Ozato
mesh_terms: D000818:Animals; D008544:Melanocytes / Q000166:cytology; D009132:Muscles / Q000166:cytology / Q000196:embryology; D009154:Mutation; D009990:Oryzias / Q000196:embryology* / Q000235:genetics*; D010641:Phenotype; D013623:Tail / Q000166:cytology / Q000196:embryology; D013997:Time Factors