Interstitial telomeric repeats are enriched in the centromeres of chromosomes in Solanum species

dc.creatorHe, Li
dc.creatorLiu, Jun
dc.creatorTorres, Giovana A.
dc.creatorZhang, Haiqin
dc.creatorJiang, Jiming
dc.creatorXie, Conghua
dc.date2019-10-26T12:09:06Z
dc.date2019-10-26T12:09:06Z
dc.date2013-03
dc.date.accessioned2023-09-28T20:00:14Z
dc.date.available2023-09-28T20:00:14Z
dc.identifierHE, L. et al. Interstitial telomeric repeats are enriched in the centromeres of chromosomes in Solanum species. Chromosome Research, [S.l.], v. 21, n. 1, p. 5-13, Mar. 2013.
dc.identifierhttps://link.springer.com/article/10.1007/s10577-012-9332-x
dc.identifierhttp://repositorio.ufla.br/jspui/handle/1/37358
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/9042100
dc.descriptionInterstitial telomeric repeats (ITRs) were reported in a number of animal and plant species. Most ITRs are organized as short tandem arrays and are likely evolutionary relics derived from chromosomal rearrangements and DNA repairs. However, megabase-sized ITR arrays were reported in Solanum species. Here, we report a fluorescence in situ hybridization (FISH) survey of ITRs in all representative diploid Solanum species, including potato, tomato, and eggplant. FISH revealed massive amplification of ITRs in the centromeric regions of chromosomes from the Solanum species containing the B and P genomes. A significant proportion of the ITR FISH signals was mapped within the primary constrictions of the pachytene chromosomes of Solanum pinnatisectum (B genome). In addition, some ITR sites overlapped with St49, a satellite repeat enriched in centromeric DNA sequences associated with CENH3 nucleosomes, in both A and B genome Solanum species. These results show that some ITR subfamilies have been amplified and invaded in the functional centromeres of chromosomes in Solanum species.
dc.languageen_US
dc.publisherSpringer
dc.rightsrestrictAccess
dc.sourceChromosome Research
dc.subjectCentromere
dc.subjectPotato
dc.subjectSolanum
dc.subjectFluorescence in situ hybridization
dc.titleInterstitial telomeric repeats are enriched in the centromeres of chromosomes in Solanum species
dc.typeArtigo


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