hobo transposable elements in Drosophila melanogaster and D. simulans.
Genomic patterns of occurrence of the transposable element hobo are polymorphic in the sibling species Drosophila melanogaster and D. simulans. Most tested strains of both species have apparently complete (3.0 kb) and smaller hobo elements (H lines), but in both species some strains completely lack such canonical hobo elements (E lines). The occurrence of H and E lines in D. simulans as well as in D. melanogaster implies that an hypothesis of recent introduction in the latter species is inadequate to explain the phylogenetic occurrence of hobo. Particular internally deleted elements, the approximately 1.5 kb Th1 and Th2 elements, are abundant in many lines of D. melanogaster, and an analogous 1.1 kb internally deleted element, h del sim, is abundant in most lines of D. simulans. Besides the canonical hobo sequences, both species (and their sibling species D. sechellia and D. mauritiana) have many hobo-hybridizing sequences per genome that do not appear to be closely related to the canonical hobo sequence.
Boussy
I A
IA
Department of Biology, Loyola University of Chicago, Illinois 60626.
Daniels
S B
SB
D000818:Animals; D004251:DNA Transposable Elements; D015252:Deoxyribonucleases, Type II Site-Specific; D004330:Drosophila / Q000235:genetics*; D004331:Drosophila melanogaster / Q000235:genetics*; D014644:Genetic Variation; D010802:Phylogeny
D004251:DNA Transposable Elements; C034510:CTCGAG-specific type II deoxyribonucleases; D015252:Deoxyribonucleases, Type II Site-Specific