PMID: 2109326Apr 1, 1990Paper

Superstructure of the Drosophila ribosomal gene family

Proceedings of the National Academy of Sciences of the United States of America
S M WilliamsC Strobeck

Abstract

Determining the spatial organization of middle repetitive DNA has proven difficult for several reasons. Repeated arrays are often so large that molecular methods alone cannot resolve their organization, and the lack of phenotypic markers within arrays limits the value of classical genetic analysis. We have characterized the superstructure of one repeated gene family, the ribosomal gene family of Drosophila melanogaster, by a combination of recombinational and molecular analyses of spacer-length variants. The resulting genetic maps demonstrate that some spacer variants are widely dispersed, while others are limited in their distribution. Moreover, exchange among ribosomal DNA (DNA encoding rRNA) arrays was often unequal, leading to a prediction of little or no relationship between physical location in an array and relatedness of gene family members. Extensions of our procedure may be generally useful for mapping the superstructure of repetitive DNA.

References

Oct 9, 1979·Journal of Molecular Biology·T YaguraM Muramatsu
Jan 1, 1987·Proceedings of the National Academy of Sciences of the United States of America·P D ClusterF J Ayala
Jan 25, 1983·Journal of Molecular Biology·R S Hawley, K D Tartof
Jan 1, 1980·Annual Review of Biochemistry·E O Long, I B Dawid

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Citations

Jan 1, 1993·Molecular & General Genetics : MGG·P Pasero, M Marilley
Mar 16, 2007·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Ervin D NagyJeffrey L Bennetzen
Oct 1, 1992·Trends in Genetics : TIG·S M Williams, L G Robbins
Aug 31, 1992·Biochemical and Biophysical Research Communications·L Leino, K Sorvajärvi
Mar 1, 1995·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·K D SimcoxR Louie

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