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Transposable Elements in the Organization and Diversification of the Genome of Tausch (Poaceae, Triticeae)

Overview
Journal Int J Genomics
Publisher Wiley
Date 2018 Oct 26
PMID 30356408
Citations 5
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Abstract

Repetitive DNA-specifically, transposable elements (TEs)-is a prevailing genomic fraction in cereals that underlies extensive genome reshuffling and intraspecific diversification in the wild. Although large amounts of data have been accumulated, the effect of TEs on the genome architecture and functioning is not fully understood. Here, plant genome organization was addressed by means of cloning and sequencing TE fragments of different types, which compose the largest portion of the genome. Individual genotypes were analyzed cytogenetically using the cloned TE fragments as the DNA probes for fluorescence in situ hybridization (FISH). The obtained TE sequences of the Ty1-, Ty3-, LINE, and CACTA superfamilies showed the relatedness of the genome to the Triticeae tribe and similarities to evolutionarily distant species. A significant number of clones consisted of intercalated fragments of TEs of various types, in which Fatima (Ty3-) sequences predominated. At the chromosomal level, different TE clones demonstrated sequence-specific patterning, emphasizing the effect of the TE fraction on the . genome architecture and intraspecific diversification. Altogether, the obtained data highlight the current species-specific organization and patterning of the mobile element fraction and point to ancient evolutionary events in the genome of .

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References
1.
Kapitonov V, Jurka J . Molecular paleontology of transposable elements from Arabidopsis thaliana. Genetica. 2000; 107(1-3):27-37. View

2.
Kashkush K, Feldman M, Levy A . Transcriptional activation of retrotransposons alters the expression of adjacent genes in wheat. Nat Genet. 2002; 33(1):102-6. DOI: 10.1038/ng1063. View

3.
Fransz P, de Jong H . From nucleosome to chromosome: a dynamic organization of genetic information. Plant J. 2011; 66(1):4-17. DOI: 10.1111/j.1365-313X.2011.04526.x. View

4.
Novak P, Hribova E, Neumann P, Koblizkova A, Dolezel J, Macas J . Genome-wide analysis of repeat diversity across the family Musaceae. PLoS One. 2014; 9(6):e98918. PMC: 4059648. DOI: 10.1371/journal.pone.0098918. View

5.
Belyayev A, Raskina O, Nevo E . Variability of the chromosomal distribution of Ty3-gypsy retrotransposons in the populations of two wild Triticeae species. Cytogenet Genome Res. 2005; 109(1-3):43-9. DOI: 10.1159/000082380. View