title: Photoreceptor development in premetamorphic and metamorphic Xenopus laevis.
abstract: Transgenic Xenopus laevis are commonly used to study gene expression in photoreceptors, but only red rods and red cones are known to exist in the pre-metamorphic stages commonly used in transgenic studies. Using RT-PCR, this study shows that violet cones develop in early pre-metamorphic stages (Stage 35) with the red rods and red cones. Green rod development began in Stage 53 with the onset of metamorphosis.
authors.affiliation: Department of Neurosciences, Medical University of South Carolina, Charleston, USA. parkerry@musc.edu
authors.forename: Ryan O
authors.initials: RO
authors.lastname: Parker
authors.forename: Brent
authors.initials: B
authors.lastname: Mccarragher
authors.forename: Rosalie
authors.initials: R
authors.lastname: Crouch
authors.forename: Alix G
authors.initials: AG
authors.lastname: Darden
mesh_terms: D000818:Animals; D030801:Animals, Genetically Modified; D004625:Embryo, Nonmammalian / Q000502:physiology*; D008675:Metamorphosis, Biological; D012333:RNA, Messenger / Q000235:genetics / Q000378:metabolism; D017949:Retinal Cone Photoreceptor Cells / Q000166:cytology* / Q000378:metabolism; D017948:Retinal Rod Photoreceptor Cells / Q000166:cytology* / Q000378:metabolism; D020133:Reverse Transcriptase Polymerase Chain Reaction; D017299:Rod Opsins / Q000235:genetics / Q000378:metabolism; D014982:Xenopus laevis / Q000196:embryology*
chemical_list: D012333:RNA, Messenger; D017299:Rod Opsins