PLECENIKOVA, A., M. SLANINOVA and Karel ŘÍHA. Characterization of DNA Repair Deficient Strains of Chlamydomonas reinhardtii Generated by Insertional Mutagenesis. Plos one. SAN FRANCISCO: PUBLIC LIBRARY SCIENCE, 2014, vol. 9, No 8, p. "nestránkováno", 9 pp. ISSN 1932-6203. Available from: https://dx.doi.org/10.1371/journal.pone.0105482.
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Basic information
Original name Characterization of DNA Repair Deficient Strains of Chlamydomonas reinhardtii Generated by Insertional Mutagenesis
Authors PLECENIKOVA, A. (703 Slovakia), M. SLANINOVA (703 Slovakia) and Karel ŘÍHA (203 Czech Republic, guarantor, belonging to the institution).
Edition Plos one, SAN FRANCISCO, PUBLIC LIBRARY SCIENCE, 2014, 1932-6203.
Other information
Original language English
Type of outcome Article in a journal
Field of Study Genetics and molecular biology
Country of publisher United States of America
Confidentiality degree is not subject to a state or trade secret
WWW URL
Impact factor Impact factor: 3.234
RIV identification code RIV/00216224:14740/14:00079173
Organization unit Central European Institute of Technology
Doi http://dx.doi.org/10.1371/journal.pone.0105482
UT WoS 000341106100073
Keywords in English HOMOLOGOUS RECOMBINATION; NUCLEAR TRANSFORMATION; HUMAN CTIP; ARG7 GENE; ARABIDOPSIS; PLANTS; GENOME; DAMAGE; MECHANISMS; RESPONSES
Tags kontrola MP, MP, rivok
Tags International impact, Reviewed
Changed by Changed by: Martina Prášilová, učo 342282. Changed: 23/2/2015 11:17.
Abstract
While the mechanisms governing DNA damage response and repair are fundamentally conserved, cross-kingdom comparisons indicate that they differ in many aspects due to differences in life-styles and developmental strategies. In photosynthetic organisms these differences have not been fully explored because gene-discovery approaches are mainly based on homology searches with known DDR/DNA repair proteins. Here we performed a forward genetic screen in the green algae Chlamydomonas reinhardtii to identify genes deficient in DDR/DNA repair. We isolated five insertional mutants that were sensitive to various genotoxic insults and two of them exhibited altered efficiency of transgene integration. To identify genomic regions disrupted in these mutants, we established a novel adaptor-ligation strategy for the efficient recovery of the insertion flanking sites. Four mutants harbored deletions that involved known DNA repair factors, DNA Pol zeta, DNA Pol theta, SAE2/COM1, and two neighbouring genes encoding ERCC1 and RAD17. Deletion in the last mutant spanned two Chlamydomonas-specific genes with unknown function, demonstrating the utility of this approach for discovering novel factors involved in genome maintenance.
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