Characterization of a highly repeated DNA sequence family in five species of the genus Eulemur

Mario Ventura, Michele Boniotto, Maria Francesca Cardone, Luigi Fulizio, Nicoletta Archidiacono, Mariano Rocchi, Sergio Crovella

Research output: Contribution to journalArticle

Abstract

The karyotypes of Eulemur species exhibit a high degree of variation, as a consequence of the Robertsonian fusion and/or centromere fission. Centromeric and pericentromeric heterochromatin of eulemurs is constituted by highly repeated DNA sequences (including some telomeric TTAGGG repeats) which have so far been investigated and used for the study of the systematic relationships of the different species of the genus Eulemur. In our study, we have cloned a set of repetitive pericentromeric sequences of five Eulemur species: E. fulvus fulvus (EFU), E. mongoz (EMO), E. macaco (EMA), E. rubriventer (ERU), and E. coronatus (ECO). We have characterized these clones by sequence comparison and by comparative fluorescence in situ hybridization analysis in EMA and EFU. Our results showed a high degree of sequence similarity among Eulemur species, indicating a strong conservation, within the five species, of these pericentromeric highly repeated DNA sequences.

Original languageEnglish
Pages (from-to)305-310
Number of pages6
JournalGene
Volume275
Issue number2
DOIs
Publication statusPublished - Sep 19 2001

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Keywords

  • Chromosome rearrangements
  • Fluorescence in situ hybridization
  • Malagasy lemurs
  • Sequence alignment

ASJC Scopus subject areas

  • Genetics

Cite this

Ventura, M., Boniotto, M., Cardone, M. F., Fulizio, L., Archidiacono, N., Rocchi, M., & Crovella, S. (2001). Characterization of a highly repeated DNA sequence family in five species of the genus Eulemur. Gene, 275(2), 305-310. https://doi.org/10.1016/S0378-1119(01)00653-9