title: GFP-tagged balancer chromosomes for Drosophila melanogaster.
abstract: We constructed green fluorescent protein (GFP)-expressing balancer chromosomes for each of the three major chromosomes of Drosophila melanogaster. Expression of GFP in these chromosomes is driven indirectly by a Kruppel (Kr) promoter, via the yeast GAL4-UAS regulatory system. GFP fluorescence can be seen in embryos as early as the germ band extension stage, and can also be seen in larvae, pupae, and adults. We show the patterns of GFP expression of these balancers and demonstrate the use of the balancers to identify homozygous progeny.
authors.affiliation: Department of Biochemistry and Biophysics, University of California, San Francisco, CA 94143-0448, USA.
authors.forename: D
authors.initials: D
authors.lastname: Casso
authors.forename: F A
authors.initials: FA
authors.lastname: Ramírez-Weber
authors.forename: T B
authors.initials: TB
authors.lastname: Kornberg
mesh_terms: D000818:Animals; D002875:Chromosomes / Q000235:genetics*; D004268:DNA-Binding Proteins / Q000235:genetics; D029721:Drosophila Proteins; D004331:Drosophila melanogaster / Q000196:embryology / Q000235:genetics* / Q000254:growth & development; D004625:Embryo, Nonmammalian; D005260:Female; D018507:Gene Expression Regulation, Developmental; D049452:Green Fluorescent Proteins; D051741:Kruppel-Like Transcription Factors; D008164:Luminescent Proteins / Q000235:genetics*; D008297:Male; D011401:Promoter Regions, Genetic; D012097:Repressor Proteins; D014157:Transcription Factors / Q000235:genetics
chemical_list: D004268:DNA-Binding Proteins; D029721:Drosophila Proteins; C497244:Kr protein, Drosophila; D051741:Kruppel-Like Transcription Factors; D008164:Luminescent Proteins; D012097:Repressor Proteins; D014157:Transcription Factors; D049452:Green Fluorescent Proteins