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Transposition of the I element and copia in a natural population of Drosophila melanogaster

Published online by Cambridge University Press:  14 April 2009

Andrew J. Leigh Brown*
Affiliation:
Department of Genetics, University of Edinburgh, West Mains Road, Edinburgh EH9 3JN, Scotland
Julie E. Moss
Affiliation:
Department of Genetics, University of Edinburgh, West Mains Road, Edinburgh EH9 3JN, Scotland
*
* Corresponding authors.

Summary

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In order to increase our understanding of the evolutionary dynamics of transposable genetic elements we have studied the chromosal location of copies of 2 element families in 20 X chromosomes extracted from a natural population of Drosophila melanogaster from Spain. The I element was localized at a total of 64 chromosomal sites and copia at 45 sites in this sample with a mean copy number of 3·2 and 2·3 elements/chromosome respectively. Both elements were highly variable in location, with no site reaching a higher frequency than 4/20 in either case. Comparisons with other data sets suggest that insertion frequencies can be used to detect population structuring.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1987

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