title: 412-positive mesodermal cells and the gonadal mesoderm are separate from the fat-cell lineage.
abstract: The Drosophila retrotransposon, 412, is expressed in a cell-specific manner during embryogenesis. At stage 11, 412 transcripts are present in bilateral clusters of cells within the mesoderm. The posterior clusters of 412-positive cells become associated with the gonads at stage 13; however, the fate of the cells in the remaining clusters is unknown. We have tested by in situ hybridization to whole-mount embryos the possible identity of these cells with known precursor cell types present in bilateral clusters. We simultaneously located the 412-positive cells and the precursor cells to visceral muscle or the fat body. We have determined that the 412-positive cells do not correspond to these precursor cells and that the development of the visceral muscle or fat body does not affect the expression of 412 during embryogenesis.
authors.affiliation: Department of Biochemistry, University of Illinois College of Medicine at Chicago 60612, USA.
authors.forename: C
authors.initials: C
authors.lastname: Tan
authors.forename: C
authors.initials: C
authors.lastname: Price
authors.forename: D K
authors.initials: DK
authors.lastname: Hoshizaki
mesh_terms: D017667:Adipocytes; D000818:Animals; D004330:Drosophila / Q000196:embryology* / Q000235:genetics; D005216:Fat Body / Q000166:cytology / Q000196:embryology; D006066:Gonads / Q000196:embryology; D006321:Heart / Q000196:embryology; D008648:Mesoderm / Q000166:cytology; D009132:Muscles / Q000196:embryology; D018626:Retroelements
chemical_list: D018626:Retroelements