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Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12128/5178
Title: Impact of mutagens on DNA replication in barley chromosomes
Authors: Kwaśniewska, Jolanta
Zubrzycka, Karolina
Kuś, Arita
Keywords: Barley; Chromosome; DNA replication pattern; EdU; Mutagens
Issue Date: 2018
Citation: International Journal of Molecular Sciences, Vol. 19, iss. 4 (2018), art. no. 1070
Abstract: Replication errors that are caused by mutagens are critical for living cells. The aim of the study was to analyze the distribution of a DNA replication pattern on chromosomes of the H. vulgare ‘Start’ variety using pulse 5-ethynyl-20-deoxyuridine (EdU) labeling, as well as its relationship to the DNA damage that is induced by mutagenic treatment with maleic hydrazide (MH) and γ ray. To the best of our knowledge, this is the first example of a study of the effects of mutagens on the DNA replication pattern in chromosomes, as well as the first to use EdU labeling for these purposes. The duration of the cell cycle of the Hordeum vulgare ‘Start’ variety was estimated for the first time, as well as the influence of MH and γ ray on it. The distribution of the signals of DNA replication along the chromosomes revealed relationships between DNA replication, the chromatin structure, and DNA damage. MH has a stronger impact on replication than γ ray. Application of EdU seems to be promising for precise analyses of cell cycle disturbances in the future, especially in plant species with small genomes.
URI: http://hdl.handle.net/20.500.12128/5178
DOI: 10.3390/ijms19041070
ISSN: 1661-6596
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