2013
DOI: 10.1159/000354278
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Telomeres in Fishes

Abstract: In fishes, as in other vertebrate species, the DNA component of the telomeres consists of the tandemly repeated TTAGGG motif. The length of the telomeric arrays in fishes ranges from 2 to 25 kb and shortens with age in some of the species. To date, chromosomal distribution of the telomeric DNA sequences has been examined in approximately 80 fish species of which about 42% show additional telomeric hybridization signals far from the chromosomal termini. Based on the chromosomal location, such internally located… Show more

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Cited by 89 publications
(86 citation statements)
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References 110 publications
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“…Further conspicuous ITSs have been discovered in primates [Garagna et al, 1997;Go et al, 2000;Farré et al, 2009], Carnivora [Wurster-Hill et al, 1988], Cetartiodactyla [Scherthan, 1990;Lee et al, 1993;Vermeesch et al, 1996], Perissodactyla [Santani et al, 2002], Chiroptera [Finato et al, 2000], Rodentia [Bertoni et al, 1996;Fagundes and Yonenaga-Yassuda, 1998;Castiglia et al, 2006;Ventura et al, 2006Ventura et al, , 2009Swier et al, 2012;Nagamachi et al, 2013], Marsupialia [Metcalfe et al, 1998[Metcalfe et al, , 2002[Metcalfe et al, , 2007Pagnozzi et al, 2000], birds Nanda et al, 2002Nanda et al, , 2007, reptiles [Schmid et al, , 2014aPellegrino et al, 1999Pellegrino et al, , 2009Bertolotto et al, 2001;Srikulnath et al, 2009;Rovatsos et al, 2015], amphibians ( table 1 ), and fishes [Abuín et al, 1996;Garrido-Ramos et al, 1998;Ocalewicz, 2013].…”
Section: Discussionmentioning
confidence: 99%
“…Further conspicuous ITSs have been discovered in primates [Garagna et al, 1997;Go et al, 2000;Farré et al, 2009], Carnivora [Wurster-Hill et al, 1988], Cetartiodactyla [Scherthan, 1990;Lee et al, 1993;Vermeesch et al, 1996], Perissodactyla [Santani et al, 2002], Chiroptera [Finato et al, 2000], Rodentia [Bertoni et al, 1996;Fagundes and Yonenaga-Yassuda, 1998;Castiglia et al, 2006;Ventura et al, 2006Ventura et al, , 2009Swier et al, 2012;Nagamachi et al, 2013], Marsupialia [Metcalfe et al, 1998[Metcalfe et al, , 2002[Metcalfe et al, , 2007Pagnozzi et al, 2000], birds Nanda et al, 2002Nanda et al, , 2007, reptiles [Schmid et al, , 2014aPellegrino et al, 1999Pellegrino et al, , 2009Bertolotto et al, 2001;Srikulnath et al, 2009;Rovatsos et al, 2015], amphibians ( table 1 ), and fishes [Abuín et al, 1996;Garrido-Ramos et al, 1998;Ocalewicz, 2013].…”
Section: Discussionmentioning
confidence: 99%
“…The chromosomal distribution of telomeric DNA sequences has been examined in ∼ 80 fish species, with 42% of them showing ITSs [Ocalewicz, 2013]. ITSs may be the result of (1) fusion of telomeres of 2 chromosomes; (2) fusion of an acentric fragment with the telomere of another chromosome; or (3) telomere-centromere rearrangements, in which telomeric sequences of one chromosome fuse with the centromere of another chromosome [Rossi et al, 1993].…”
Section: Discussionmentioning
confidence: 99%
“…In this context, Schemberger et al [2011] inferred that chromosome variation in the family Parodontidae is mostly due to the movement of DNA satellite sequences and TEs. The presence of ITS in fusion points and/or translocations is an event relatively common in fish [Ocalewicz, 2013]. In numerous events of chromosome rearrangements, telomeres can be completely lost or in low copy numbers [Slijepcevic, 1998].…”
Section: Discussionmentioning
confidence: 99%
“…In fish, Ocalewicz [2013] reported that in 80 species the (TTAGGG)n sequence was localized in situ to the telomere, and 42% presented additional telomeric hybridization signals far from the chromosome end (internal or interstitial telomeric sites, ITS). The localization of these ITS confirmed Robertsonian fusions [Rosa et al, 2012;Traldi et al, 2013;Errero Porto et al, 2014], but ITS can also be inserted in interstitial positions by telomerase or transposed to repair the ruptures in double-stranded DNA [Nergadze et al, 2007].…”
mentioning
confidence: 99%