Molecular characterization of ribosomal genes on the Ybb- chromosome of Drosophila melanogaster.

Journal Article

The question of whether the Ybb- chromosome contains ribosomal genes has been examined by using Southern blot analysis and comparing rDNA hybridization patterns for X/X and X/Ybb- DNA. The results demonstrate that the Ybb- chromosome contains sequences that hybridize to an rDNA probe under stringent conditions. Differential hybridization of some of these sequences with DNAs corresponding to different regions of a complete ribosomal gene repeat provides evidence that some of the genes on the Ybb- chromosome are type 2 repeats. Because data obtained by other workers suggest that type 2 repeats are transcribed only to low levels, these repeats may be classed as "nonfunctional". A further finding is that the ribosomal genes on the Ybb- chromosome do not undergo multiple rounds of DNA replication during polytenization of X/Ybb- cells.

Full Text

Duke Authors

Cited Authors

  • Endow, SA

Published Date

  • September 1982

Published In

Volume / Issue

  • 102 / 1

Start / End Page

  • 91 - 99

PubMed ID

  • 6813192

International Standard Serial Number (ISSN)

  • 0016-6731

Language

  • eng

Conference Location

  • United States