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TTAGG Telomeric Repeats in Chromosomes of Some Insects and Other Arthropods

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Title: TTAGG Telomeric Repeats in Chromosomes of Some Insects and Other Arthropods
Authors: Sahara, Ken1 Browse this author →KAKEN DB
Marec, František Browse this author
Traut, Walther Browse this author
Authors(alt): 佐原, 健1
Keywords: Telomere
fluorescence in situ hybridization
Southern hybridization
insect phylogeny
Issue Date: Sep-1999
Publisher: Springer Science+Business Media B.V., Formerly Kluwer Academic Publishers B.V.
Journal Title: Chromosome Research
Volume: 7
Issue: 6
Start Page: 449
End Page: 460
Publisher DOI: 10.1023/A:1009297729547
Abstract: 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, in two representatives of Diptera, Drosophila melanogaster and Megaselia scalaris, in a species of Heteroptera, the bug Pyrrhocoris apterus and in 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.
Rights: The original publication is available at Former publisher: Kluwer Academic Publishers
Type: article (author version)
Appears in Collections:農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 佐原 健

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