Used in an investigation to address the relationship between retrotransposons and retroviruses and the coadaptation of these retroelements to their host genomes. Results indicate retrotransposons are heterogeneous in contrast to retroviruses, suggesting different modes of evolution by slippage-like mechanisms.
Dvir\Ulysses is a retroelement most closely related to the Ty3-gypsy superfamily. Progeny from a dysgenic cross between females of strain B9 and males of strain L160 show mobilisation of at least four different transposable elements at similar frequencies.
The Dvir\Ulysses element is 10,653bp long and is flanked by two unusually large 2136bp direct repeats. Dvir\Ulysses shows the characteristic organisation of LTR-containing retrotransposons, with matrix and capsid domains encoded in the first open reading frame (ORF). In addition, Dvir\Ulysses contains protease, reverse transcriptase, RNase H and integrase domains encoded in the second ORF.
A Dvir\Ulysses element has been cloned and analysed. This element has several characteristics of the retrotransposon family. It is 10.6kb long, and is flanked by unusually large 2.1kb long terminal repeats.
Used in an investigation to address the relationship between retrotransposons and retroviruses and the coadaptation of these retroelements to their host genomes. Results indicate retrotransposons are heterogeneous in contrast to retroviruses, suggesting different modes of evolution by slippage-like mechanisms.
Dvir\Ulysses is a retroelement most closely related to the Ty3-gypsy superfamily. Progeny from a dysgenic cross between females of strain B9 and males of strain L160 show mobilisation of at least four different transposable elements at similar frequencies.
The Dvir\Ulysses element is 10,653bp long and is flanked by two unusually large 2136bp direct repeats. Dvir\Ulysses shows the characteristic organisation of LTR-containing retrotransposons, with matrix and capsid domains encoded in the first open reading frame (ORF). In addition, Dvir\Ulysses contains protease, reverse transcriptase, RNase H and integrase domains encoded in the second ORF.
Hybrid dysgenesis in D.virilis has been studied. It is hypothesised that Dvir\Ulysses may be responsible for the phenomena observed.
A Dvir\Ulysses element has been cloned and analysed. This element has several characteristics of the retrotransposon family. It is 10.6kb long, and is flanked by unusually large 2.1kb long terminal repeats.