Počet záznamů: 1  

Repeated losses of TTAGG telomere repeats in evolution of beetles (Coleoptera)

  1. 1.
    0135850 - ENTU-I 20023069 RIV NL eng J - Článek v odborném periodiku
    Frydrychová, Radmila - Marec, František
    Repeated losses of TTAGG telomere repeats in evolution of beetles (Coleoptera).
    Genetica. Roč. 115, - (2002), s. 179-187. ISSN 0016-6707
    Grant CEP: GA ČR GA206/00/0750; GA AV ČR KSK5052113
    Výzkumný záměr: CEZ:AV0Z5007907
    Klíčová slova: chromosomes * Coleoptera * phylogeny
    Kód oboru RIV: EB - Genetika a molekulární biologie
    Impakt faktor: 1.063, rok: 2002

    We studied the occurrence of (TTAGG)n telomere repeats in 12 species of beetles, representing main lineages of the Coleoptera phylogenetic tree, by Souther hybridization and fluorescence in-situ hybridization (FISH). In contrast to other insect orders, beetles were heterogeneous with respect to the occurrence of TTAGG repeats. In addition, the presence or absence of (TTAGG)n motif was irrespective of phylogenetic relationships. We concluded that the telomerase-dependent (TTAGG)n motif had been repeatedly lost in different phylogenetic branches of Coleoptera and probably replaced with another mechanism of telomere elongation.
    Trvalý link: http://hdl.handle.net/11104/0033626