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MBE Advance Access originally published online on July 28, 2003
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Mol. Biol. Evol. 20(11):1925-1931. 2003
DOI: 10.1093/molbev/msg200
© 2003 by the Society for Molecular Biology and Evolution. ISSN: 0737-4038

Evidence for the Contribution of LTR Retrotransposons to C. elegans Gene Evolution

Eric W. Ganko*,, Vikram Bhattacharjee*, Paul Schliekelman{dagger} and John F. McDonald*

Departments of * Genetics
{dagger} Statistics, University of Georgia

E-mail: edog22{at}uga.edu.

LTR retrotransposons may be important contributors to host gene evolution because they contain regulatory and coding signals. In an effort to assess the possible contribution of LTR retrotransposons to C. elegans gene evolution, we searched upstream and downstream of LTR retrotransposon sequences for the presence of predicted genes. Sixty-three percent of LTR retrotransposon sequences (79/124) are located within 1 kb of a gene or within gene boundaries. Most gene-retrotransposon associations were located along the chromosome arms. Our results are consistent with the hypothesis that LTR retrotransposons have contributed to the structural and/or regulatory evolution of genes in C. elegans.

Key Words: C. elegans • LTR retrotransposon • gene evolution • genome evolution


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