Human Genetics

, Volume 89, Issue 2, pp 247–249 | Cite as

Evidence for an ancestral alphoid domain on the long arm of human chromosome 2

  • Rosamaria Avarello
  • Antonio Pedicini
  • Angela Caiulo
  • Orsetta Zuffardi
  • Marco Fraccaro
Short Communications

Summary

In situ hybridization, under low stringency conditions with two alphoid DNA probes (pYα1 and p82H) labeled with digoxigenin-dUTP, decorated all the centromeres of the human karyotype. However, signals were also detected on the long arm of chromosome 2 at approximately q21.3–q22.1. Since it is supposed that human chromosome 2 originated by the telomeric fusion of two ancestral primate chromosomes, these findings indicate that not only the telomeric sequences, but also the ancestral centromere (or at least its alphoid sequences), have been conserved.

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Copyright information

© Springer-Verlag 1992

Authors and Affiliations

  • Rosamaria Avarello
    • 1
  • Antonio Pedicini
    • 1
  • Angela Caiulo
    • 1
  • Orsetta Zuffardi
    • 1
  • Marco Fraccaro
    • 1
  1. 1.Istituto di Biologia Generale e Genetica MedicaUniversità di PaviaPaviaItaly

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