Rate of turnover of structural variants in the rDNA gene family of Drosophila melanogaster
Authors:
- Enrico S. CoenECEnrico S. Coen
- John M. ThodayJTJohn M. Thoday
- Gabriel DoverGDGabriel Dover
- 18 February 1982
- journal article
- research article
- Published by Springer Nature in Nature
- Vol. 295 (5850) , 564-568
Abstract
A high degree of polymorphism for the length and copy number of r[ribosomal]DNA spacers, in both the X and Y chromosome clusters, was found in a wild population of D. melanogaster. The genetic behavior of rDNA structural variants in separate and mixed populations derived from isofemale lines suggests that they are not subject to strong selection and are stable for over 1,000 generations. The high structural variability suggests an evolutionary rapid process of turnover in the family which could partly explain widespread sequence homogeneity (concerted evolution) of rDNA within a species.Keywords
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