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Kinetics of DNA Repair in Vicia faba Meristem Regeneration Following Replication Stress
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SYSNO ASEP 0544197 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Kinetics of DNA Repair in Vicia faba Meristem Regeneration Following Replication Stress Author(s) Rybaczek, D. (PL)
Musiałek, M. W. (PL)
Vrána, Jan (UEB-Q) RID, ORCID
Petrovská, Beáta (UEB-Q) RID, ORCID
Pikus, E. G. (PL)
Doležel, Jaroslav (UEB-Q) RID, ORCIDNumber of authors 6 Article number 88 Source Title Cells. - : MDPI
Roč. 10, č. 1 (2021)Number of pages 18 s. Language eng - English Country CH - Switzerland Keywords 5-ethynyl-2′-deoxyuridine ; caffeine ; DNA damage ; DNA repair ; DNA replication ; heterochromatin ; hydroxyurea ; nuclei sorting ; premature chromosome condensation ; replication stress OECD category Biochemistry and molecular biology R&D Projects EF16_019/0000827 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Open access Institutional support UEB-Q - RVO:61389030 UT WOS 000610028600001 EID SCOPUS 85099894974 DOI 10.3390/cells10010088 Annotation The astonishing survival abilities of Vicia faba, one the earliest domesticated plants, are associated, among other things, to the highly effective replication stress response system which ensures smooth cell division and proper preservation of genomic information. The most crucial pathway here seems to be the ataxia telangiectasia-mutated kinase (ATM)/ataxia telangiectasia and Rad3-related kinase (ATR)-dependent replication stress response mechanism, also present in humans. In this article, we attempted to take an in-depth look at the dynamics of regeneration from the effects of replication inhibition and cell cycle checkpoint overriding causing premature chromosome condensation (PCC) in terms of DNA damage repair and changes in replication dynamics. We were able to distinguish a unique behavior of replication factors at the very start of the regeneration process in the PCC-induced cells. We extended the experiment and decided to profile the changes in replication on the level of a single replication cluster of heterochromatin (both alone and with regard to its position in the nucleus), including the mathematical profiling of the size, activity and shape. The results obtained during these experiments led us to the conclusion that even chaotic events are dealt with in a proper degree of order. Workplace Institute of Experimental Botany Contact David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Year of Publishing 2022 Electronic address http://doi.org/10.3390/cells10010088
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