Active Research Evolutionary genomics of Drosophila Genetic diversity of P. falciparum Evolution of hybrid incompatibilities Evolution of gene expression Natural selection and protein evolution   Past Research Evolution of novel gene functions Bioinformatics Selective sweep C-value paradox Transposable element mariner Structure and sequence of the Drosophila genome Genome structure and evolution in D. virilis Cosuppression of transposable elements Molecular evolution in enteric bacteria Gregor Mendel

Cosuppression of transposable elements and hybrid dysgenesis We studied a system of hybrid dysgenesis in Drosophila virilis in which at least four unrelated transposable elements are all mobilized following a dysgenic cross. The data are largely consistent with the loss of cosuppression of different families of transposable elements. These families include Ulysses and Telemac (both LTR-containing retrotransposon), Helena (a non-LTR retrotransposon), Paris (a cut-and-paste DNA transposon) and Penelope (a transposable element of uncertain functional affiliation).     Vieira, J., C. P. Vieira, D. L. Hartl, and E. R. Lozovskaya. 1998 Factors contributing to the hybrid dysgenesis syndrome in Drosophila virilis. Genet. Res. 71: 109-117.     PDF Petrov, D. A., J. L. Schutzman, D. L. Hartl and E. R. Lozovskaya, 1995 Diverse transposable elements are mobilized in hybrid dysgenesis in Drosophila virilis. Proc. Natl. Acad. Sci. USA 92: 8050-8054