Chromosome Research

, Volume 7, Issue 6, pp 449–460 | Cite as

TTAGG Telomeric Repeats in Chromosomes of Some Insects and Other Arthropods



We studied the occurrence of the TTAGG telomere repeats by fluorescence in-situ hybridization (FISH) and Southern hybridization in ten insect species and two other arthropods. (TTAGG)n-containing telomeres were found in three Lepidoptera species, the silkworm Bombyx mori (in which the telomeric sequence was recently discovered), the flour moth Ephestia kuehniella, and the wax moth Galleria mellonella, in one species of Hymenoptera, the honey bee Apis mellifera, in one species of Coleoptera, the bark beetle Ips typographus, in one species of Orthoptera, the locust Locusta migratoria, and in a crustacean, the amphipod Gammarus pulex. They were absent in another species of Coleoptera, the mealworm Tenebrio molitor, two representatives of Diptera, Drosophila melanogaster and Megaselia scalaris, a species of Heteroptera, the bug Pyrrhocoris apterus and a spider, Tegenaria ferruginea. Our results, which confirm and extend earlier observations, suggest that (TTAGG)n was a phylogenetically ancestral telomere motif in the insect lineage but was lost independently in different groups, being replaced probably by other telomere motifs. In the Coleoptera this must have happened rather recently as even members of the same family, Curculionidae, differ with respect to the telomeric DNA.

Apis Bombyx Drosophila Ephestia fluorescence in-situ hybridization (FISH) Galleria Gammarus insect phylogeny Ips Locusta Megaselia Pyrrhocoris Southern hybridization Tegenaria telomere Tenebrio 


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Copyright information

© Kluwer Academic Publishers 1999

Authors and Affiliations

  1. 1.Hokkaido UniversitySapporoJapan and
  2. 2.Czech Academy of SciencesInstitute of EntomologyČeskE BudějoviceCzech Republic and
  3. 3.Institut für BiologieMedizinische Universität zu LübeckLübeckGermany

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