harrow: new Drosophila hAT transposons involved in horizontal transfer

In this study we characterize the transposable elements harrow, which belong to the hAT superfamily of DNA transposons. Searches for harrow sequences were performed in 65 Drosophilidae species, mainly representing Neotropical and cosmopolitan groups from the genus Drosophila. The nucleotide divergen...

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Bibliographic Details
Published in:Insect molecular biology 2010-04, Vol.19 (2), p.217-228
Main Authors: Mota, N.R, Ludwig, A, da Silva Valente, V.L, Loreto, E.L.S
Format: Article
Language:English
Subjects:
Animals
Base Sequence
DNA
DNA Primers - genetics
DNA Transposable Elements - genetics
Drosophila
Drosophila - classification
Drosophila - genetics
Drosophilidae
Evolution
Evolution, Molecular
Gene Transfer, Horizontal
Genes, Insect
hobo
Horizontal transfer
Molecular Sequence Data
Phylogeny
Selection, Genetic
Sophophora
Species Specificity
Time Factors
transposable element
transposase
Transposons
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Summary:In this study we characterize the transposable elements harrow, which belong to the hAT superfamily of DNA transposons. Searches for harrow sequences were performed in 65 Drosophilidae species, mainly representing Neotropical and cosmopolitan groups from the genus Drosophila. The nucleotide divergence among elements found in these species suggests that harrow sequences could be clustered in a subfamily. The patchy distribution throughout the genus Drosophila and the high similarity presented between all harrow sequences indicate that horizontal transfer could play a major role in the evolution of harrow elements. The results obtained suggest an evolutionary scenario in which harrow would have undergone multiple horizontal transfer events in the Neotropics, involving D. tripuncatata, D. mojavensis (Subgenus Drosophila) and several species of the willistoni and saltans groups (subgenus Sophophora).
ISSN:0962-1075
1365-2583
DOI:10.1111/j.1365-2583.2009.00977.x