J 2014

If the cap fits, wear it: an overview of telomeric structures over evolution

FULCHER, N., E. DERBOVEN, S. VALUCHOVA and Karel ŘÍHA

Basic information

Original name

If the cap fits, wear it: an overview of telomeric structures over evolution

Authors

FULCHER, N. (40 Austria), E. DERBOVEN (40 Austria), S. VALUCHOVA (40 Austria) and Karel ŘÍHA (203 Czech Republic, guarantor, belonging to the institution)

Edition

Cellular and molecular life sciences, BASEL, BIRKHAUSER VERLAG AG, 2014, 1420-682X

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

Genetics and molecular biology

Country of publisher

Switzerland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 5.808

RIV identification code

RIV/00216224:14740/14:00079175

Organization unit

Central European Institute of Technology

UT WoS

000330963900006

Keywords in English

Telomeres; Telomerase; Chromosomes; Genome evolution; DNA repair; Retrotransposons

Tags

International impact, Reviewed
Změněno: 23/2/2015 11:50, Martina Prášilová

Abstract

V originále

Genome organization into linear chromosomes likely represents an important evolutionary innovation that has permitted the development of the sexual life cycle; this process has consequently advanced nuclear expansion and increased complexity of eukaryotic genomes. Chromosome linearity, however, poses a major challenge to the internal cellular machinery. The need to efficiently recognize and repair DNA double-strand breaks that occur as a consequence of DNA damage presents a constant threat to native chromosome ends known as telomeres. In this review, we present a comparative survey of various solutions to the end protection problem, maintaining an emphasis on DNA structure. This begins with telomeric structures derived from a subset of prokaryotes, mitochondria, and viruses, and will progress into the typical telomere structure exhibited by higher organisms containing TTAGG-like tandem sequences. We next examine non-canonical telomeres from Drosophila melanogaster, which comprise arrays of retrotransposons. Finally, we discuss telomeric structures in evolution and possible switches between canonical and non-canonical solutions to chromosome end protection.