Hobo elements and their deletion-derivative sequences in Drosophila melanogaster and its sibling species D simulans, D mauritiana and D sechellia

G. Périquet,M. Hamelin,R. Kalmès,J. Eeken

Published 1990 in Genetics Selection Evolution

ABSTRACT

Summary - Hobo elements are a family of transposable elements found in Drosophila melanogaster which present a specific deletion-derivative element (Th) in the majority of the current natural populations. Present data has resolved the Th element into two elements Thl (1510 bp) and Th2 (1490 bp) and specified the regions within which the deletion breakpoints lie. Hobo homologous sequences were analysed in the sibling species D simulans, D mauritiana and D sechellia. In the full-sized element a Pvull site was shown in D simulans and D mauritiana as it exists in D melanogaster, but was not observed in D sechellia. Specific deleted-derivative elements were also characterized for the three sibling species: h del sim (1080 bp), h del maur and h del sech (1130 bp each) and their breakpoint regions plotted on a restriction map. The functioning of these elements is discussed.

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