title: Full-size P and KP elements predominate in wild Drosophila melanogaster.
abstract: We analyzed the genomic P elements of 57 wild-derived Drosophila melanogaster isofemale lines from Africa, Australia and Asia. All carried many P sequences per genome, and the full-size P and the internally deleted KP elements were very common or predominant in the populations. The genomic content of full-size P and KP elements does not correlate well with the P transposition-inducing and -repressing abilities of a line. Our results show that a large majority of type I repressor elements are full-size P elements, and almost all type II repressor elements are KP elements in the natural populations of D. melanogaster from these parts of the world.
authors.affiliation: Department of Applied Biology, Kyoto Institute of Technology, Sakyo, Japan. mitoh@ipc.kit.ac.jp
authors.forename: Masanobu
authors.initials: M
authors.lastname: Itoh
authors.forename: Ian A
authors.initials: IA
authors.lastname: Boussy
mesh_terms: D000818:Animals; D004251:DNA Transposable Elements; D004331:Drosophila melanogaster / Q000235:genetics*; D005260:Female; D018628:Gene Dosage; D015398:Signal Transduction / Q000235:genetics
chemical_list: D004251:DNA Transposable Elements