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Molecular Biology and Evolution 18:585-592 (2001)
© 2001 Society for Molecular Biology and Evolution

ARTICLE

Distribution of the bilbo Non-LTR Retrotransposon in Drosophilidae and its Evolution in the Drosophila obscura Species Group

David Blesa1,, Mónica Gandía2, and María J. Martínez-Sebastián5,

Departament de Genètica, Universitat de València, València, Spain

The bilbo element is a non-LTR retrotransposon isolated from Drosophila subobscura. We conducted a distribution survey by Southern blot for 52 species of the family Drosophilidae, mainly from the obscura and melanogaster groups. Most of the analyzed species bear sequences homologous to bilbo from D. subobscura. In the obscura group, species from the same species subgroup also share similar Southern blot patterns. To investigate the phylogenetic relationship among these elements, we analyzed eight copies of a short sequence of the element from several species of the obscura group. The obtained phylogram agrees with the phylogeny of the species, which suggests vertical transmission of the element.


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[Abstract] [Full Text] [PDF]


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