Vertical inheritance and bursts of transposition have shaped the evolution of the BS non-LTR retrotransposon in Drosophila

Author(s)

Granzotto, Adriana ^[1] ; Lopes, Fabricio R. ^[1] ; Vieira, Cristina ^[2] ; Carareto, Claudia M. A. ^[1]

Affiliation

^[1] Sao Paulo State Univ, Dept Biol, UNESP, Lab Mol Evolut, BR-15054000 Sao Paulo - Brazil

^[2] Univ Lyon 1, CNRS, UMR 5558, Lab Biometrie & Biol Evolut, F-69622 Villeurbanne - France

• Document type: Journal article
• Source: Molecular Genetics and Genomics; v. 286, n. 1, p. 57-66, JUL 2011.
• Web of Science Citations: 9

Abstract

The history of transposable elements over evolutionary time can often be partially reconstructed on the basis of genome analysis. In this study, we identified and extensively characterized the NLTR BS retrotransposon in 12 sequenced Drosophila genomes, by its sequence diversity within and among genomes, its degeneration pattern and its transcriptional activity. We show that the BS element has a variable copy number and patchy distribution within the Drosophila genus, that it is at distinct stages of the evolutionary cycle in the different Drosophila species and that its evolution is characterized by vertical transmission and by bursts of transposition in certain species. (AU)

• FAPESP's process: 07/53097-0 - Análise da dinâmica de aquisição e perda de elementos transponíveis no genoma: o elemento Helena de Drosophila como modelo
• Grantee: Claudia Marcia Aparecida Carareto
• Support Opportunities: Regular Research Grants
• FAPESP's process: 07/50641-1 - A regulacao do elemento transponivel helena em drosophila.
• Grantee: Adriana Granzotto
• Support Opportunities: Scholarships in Brazil - Doctorate