Molecular and General Genetics MGG

, Volume 262, Issue 4–5, pp 618–622

HeT-A telomere-specific retrotransposons in the centric heterochromatin of Drosophila melanogaster chromosome 3

  • A. Losada
  • M. Agudo
  • J. P. Abad
  • A. Villasante
ORIGINAL PAPER

Abstract

We have isolated two yeast artificial chromosome (YAC) clones from Drosophila melanogaster that contain a small amount of dodeca satellite (a satellite DNA located in the centromeric region of chromosome 3) and sequences homologous to the telomeric retrotransposon HeT-A. Using these YACs as probes for fluorescence in situ hybridization to mitotic chromosomes, we have localized these HeT-A elements to the centric heterochromatin of chromosome 3, at region h55. The possible origin of these telomeric elements in a centromeric position is discussed.

Key words Telomeric retrotransposons HeT-A elements Centric heterochromatin Drosophila 

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Copyright information

© Springer-Verlag Berlin Heidelberg 1999

Authors and Affiliations

  • A. Losada
    • 1
  • M. Agudo
    • 1
  • J. P. Abad
    • 1
  • A. Villasante
    • 1
  1. 1.Centro de Biología Molecular “Severo Ochoa” (CSIC-UAM), 28049 Madrid, Spain E-mail: avillasante@cbm.uam.es Tel.: +34-91-3974692; Fax: +34-91-3974799ES

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