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BACKGROUND: Sequences homologous to the gypsy retroelement from Drosophila melanogaster are widely distributed among drosophilids. The structure of gypsy includes an open reading frame resembling the retroviral gene env, which is responsible for the infectious properties of retroviruses. RESULTS: In this study we report molecular and phylogeny analysis of the complete env gene from ten species of the obscura group of the genus Drosophila and one species from the genus Scaptomyza. CONCLUSION: The results indicate that in most cases env sequences could produce a functional Env protein and therefore maintain the infectious capability of gypsy in these species.

Original publication

DOI

10.1186/1471-2148-8-302

Type

Journal article

Journal

BMC Evol Biol

Publication Date

31/10/2008

Volume

8

Keywords

Animals, Cloning, Molecular, DNA, Drosophilidae, Endogenous Retroviruses, Evolution, Molecular, Genes, Insect, Genes, env, Genome, Insect, Likelihood Functions, Models, Genetic, Open Reading Frames, Phylogeny, Protein Biosynthesis, RNA, Messenger, Retroelements, Reverse Transcriptase Polymerase Chain Reaction, Sequence Alignment, Sequence Analysis, DNA, Viral Envelope Proteins