, 108:253 | Cite as

Chromosomal Location of Ribosomal DNA (rDNA), (GATA)n and (TTAGGG)n Telomeric Repeats in the Neogastropod Fasciolaria Lignaria (Mollusca: Prosobranchia)

  • R. Vitturi
  • M.S. Colomba
  • P. Gianguzza
  • A.M. Pirrone


This paper reports on a successful application of fluorescent in situhybridization (FISH) with three repetitive DNA probes (ribosomal DNA (rDNA), (GATA)nand (TTAGGG)n) in the chromosomes of Fasciolaria lignaria(Mollusca: Prosobranchia: Neogastropoda). rDNA FISH consistently identified four chromosome pairs per spread in the three examined specimens. The telomeric sequence (TTAGGG)nhybridized with termini of all chromosomes. GATA FISH revealed abundant, dispersed minisatellite regions which were not associated to the XY sex-determining mechanism as indicated by the absence of a Y specific pattern of labelling.

Mollusca repetitive DNA Neogastropoda Fasciolaria lignaria FISH 


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Copyright information

© Kluwer Academic Publishers 2000

Authors and Affiliations

  • R. Vitturi
    • 1
  • M.S. Colomba
    • 1
  • P. Gianguzza
    • 1
  • A.M. Pirrone
    • 2
  1. 1.Dipartimento di Biologia AnimaleUniversità di PalermoPalermoItaly
  2. 2.Dipartimento di Biologia Cellulare e dello Sviluppo ‘A. Monroy’Università di PalermoPalermoItaly

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