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The Journal of Heredity 2002:93(4)
© 2002 The American Genetic Association 93:282-285

Brief Communication

Conservation of (TTAGG)n Telomeric Sequences Among Ants (Hymenoptera, Formicidae)

P. Lorite, J. A. Carrillo, and T. Palomeque

From the Departamento de Biología Experimental, área de Genética, Universidad de Jaén, 23071 Jaén, Spain.

Address correspondence to T. Palomeque at the address above, or e-mail: tpalome{at}ujaen.es.

To determine the telomere sequence in Tapinoma nigerrimum, we carried out in situ hybridization using TTAGGG and TTAGG repeat polymerase chain reaction (PCR)-generated probes. No hybridization signals were found when TTAGGG was used as a probe. However, strong signals were observed at the end of the chromosomes with the TTAGG probe. Southern blot analysis carried out on genomic DNA using TTAGG as a probe showed a strong hybridization signal even under highly stringent conditions. Similar results were obtained in Southern blot analysis carried out on genomic DNA of 19 species of ants belonging to three different subfamilies. In accordance with all the results shown in this article, the TTAGG repeat seems to be the major component of the telomere sequence in the majority of ant species.


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