Transposable elements P and gypsy in natural populations of Drosophila willistoni

Genetics and Molecular Biology

Adriana Koslovski Sassi²  Fabiana Herédia²  Élgion Lucio Da Silva Loreto¹  Vera Lucia Da Silva Valente²  Claudia Rohde² 

[1] ,Universidade Federal do Rio Grande do Sul Instituto de Biociências Departamento de GenéticaPorto Alegre RS ,Brazil

关键词: Drosophila willistoni;    transposable element;    P;    gypsy;   

DOI  :  10.1590/S1415-47572005000500013

来源: SciELO

【 摘 要 】

The presence and integrity of the P transposon and the gypsy retrotransposon in the genome of 18 samples of natural Drosophila willistoni populations collected from a large area of South America were Southern blot screened using Drosophila melanogaster probes. The aim of this screening was provide further knowledge-base on the geographical distribution of D. willistoni and to carry out an inter-population analysis of the P and gypsy elements present in the genomes of the populations analyzed. The fragment patterns obtained indicate that both the P and gypsy elements are ancient in the D. willistoni genome, but whereas the gypsy retroelement appears to be invariable and stable the P element varies between populations and appears to still have some capacity for mobilization.

【 授权许可】

CC BY   
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