Transposable elements from the mesophragmatica group of Drosophila

Genetics and Molecular Biology

Erika Germanos²  Nina R. Mota¹  Elgion L.s. Loreto² 

[1] ,Universidade Federal de Santa Maria Centro de Ciências Naturais e Exatas Pograma de Pós-Graduação em Biodiversidade Animal RS ,Brazil

关键词: Drosophila;    mesophragmatica;    phylogenetic distribution;    transposable elements;   

DOI  :  10.1590/S1415-47572006000400026

来源: SciELO

【 摘 要 】

Transposable elements (TEs) are middle repetitive DNA sequences classified into families according to their sequence similarities, such elements can playing an important role in the evolutionary process of their host genomes. There are many reports on the distribution of TEs in the fruit fly genus Drosophila, although there is relatively little information relating to the Neotropical mesophragmatica group of Drosophila, probably the most typical cluster of species occurring almost exclusively in the Andes mountains. Dot Blot and PCR analyses was used to study the distribution of some TEs (I, mariner, hobo, gypsy, Tom/17.6, micropia and P elements) within the mesophragmatica group of Drosophila. We found gypsy elements in all the mesophragmatica group species studied and mariner elements were absent only from Drosophila pavani but P element homologous sequences were present only in D. pavani and Drosophila gasici and the other TEs (I, hobo, Tom/17.6, micropia) were not found in any of the species investigated.

【 授权许可】

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