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Grin IR, Petrova DV, Endutkin AV, Ma C, Yu B, Li H, Zharkov DO. Base Excision DNA Repair in Plants: Arabidopsis and Beyond. Int J Mol Sci 2023; 24:14746. [PMID: 37834194 PMCID: PMC10573277 DOI: 10.3390/ijms241914746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 09/27/2023] [Accepted: 09/27/2023] [Indexed: 10/15/2023] Open
Abstract
Base excision DNA repair (BER) is a key pathway safeguarding the genome of all living organisms from damage caused by both intrinsic and environmental factors. Most present knowledge about BER comes from studies of human cells, E. coli, and yeast. Plants may be under an even heavier DNA damage threat from abiotic stress, reactive oxygen species leaking from the photosynthetic system, and reactive secondary metabolites. In general, BER in plant species is similar to that in humans and model organisms, but several important details are specific to plants. Here, we review the current state of knowledge about BER in plants, with special attention paid to its unique features, such as the existence of active epigenetic demethylation based on the BER machinery, the unexplained diversity of alkylation damage repair enzymes, and the differences in the processing of abasic sites that appear either spontaneously or are generated as BER intermediates. Understanding the biochemistry of plant DNA repair, especially in species other than the Arabidopsis model, is important for future efforts to develop new crop varieties.
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Affiliation(s)
- Inga R. Grin
- Siberian Branch of the Russian Academy of Sciences Institute of Chemical Biology and Fundamental Medicine, 8 Lavrentieva Ave., Novosibirsk 630090, Russia; (D.V.P.); (A.V.E.)
- Department of Natural Sciences, Novosibirsk State University, 2 Pirogova St., Novosibirsk 630090, Russia
| | - Daria V. Petrova
- Siberian Branch of the Russian Academy of Sciences Institute of Chemical Biology and Fundamental Medicine, 8 Lavrentieva Ave., Novosibirsk 630090, Russia; (D.V.P.); (A.V.E.)
| | - Anton V. Endutkin
- Siberian Branch of the Russian Academy of Sciences Institute of Chemical Biology and Fundamental Medicine, 8 Lavrentieva Ave., Novosibirsk 630090, Russia; (D.V.P.); (A.V.E.)
| | - Chunquan Ma
- Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education, Harbin 150080, China; (C.M.); (B.Y.); (H.L.)
- Heilongjiang Provincial Key Laboratory of Plant Genetic Engineering and Biological Fermentation Engineering for Cold Region, Harbin 150080, China
- School of Life Sciences, Heilongjiang University, Harbin 150080, China
| | - Bing Yu
- Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education, Harbin 150080, China; (C.M.); (B.Y.); (H.L.)
- Heilongjiang Provincial Key Laboratory of Plant Genetic Engineering and Biological Fermentation Engineering for Cold Region, Harbin 150080, China
- School of Life Sciences, Heilongjiang University, Harbin 150080, China
| | - Haiying Li
- Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education, Harbin 150080, China; (C.M.); (B.Y.); (H.L.)
- Heilongjiang Provincial Key Laboratory of Plant Genetic Engineering and Biological Fermentation Engineering for Cold Region, Harbin 150080, China
- School of Life Sciences, Heilongjiang University, Harbin 150080, China
| | - Dmitry O. Zharkov
- Siberian Branch of the Russian Academy of Sciences Institute of Chemical Biology and Fundamental Medicine, 8 Lavrentieva Ave., Novosibirsk 630090, Russia; (D.V.P.); (A.V.E.)
- Department of Natural Sciences, Novosibirsk State University, 2 Pirogova St., Novosibirsk 630090, Russia
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Zhan X, Lu Y, Zhu JK, Botella JR. Genome editing for plant research and crop improvement. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2021; 63:3-33. [PMID: 33369120 DOI: 10.1111/jipb.13063] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Accepted: 12/22/2020] [Indexed: 05/27/2023]
Abstract
The advent of clustered regularly interspaced short palindromic repeat (CRISPR) has had a profound impact on plant biology, and crop improvement. In this review, we summarize the state-of-the-art development of CRISPR technologies and their applications in plants, from the initial introduction of random small indel (insertion or deletion) mutations at target genomic loci to precision editing such as base editing, prime editing and gene targeting. We describe advances in the use of class 2, types II, V, and VI systems for gene disruption as well as for precise sequence alterations, gene transcription, and epigenome control.
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Affiliation(s)
- Xiangqiang Zhan
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Horticulture, Northwest A&F University, Xianyang, 712100, China
| | - Yuming Lu
- Shanghai Center for Plant Stress Biology, CAS Center of Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, 200032, China
| | - Jian-Kang Zhu
- Shanghai Center for Plant Stress Biology, CAS Center of Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, 200032, China
- Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, Indiana, 47907, USA
| | - Jose Ramon Botella
- School of Agriculture and Food Sciences, University of Queensland, Brisbane, Queensland, 4072, Australia
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Devesa-Guerra I, Morales-Ruiz T, Pérez-Roldán J, Parrilla-Doblas JT, Dorado-León M, García-Ortiz MV, Ariza RR, Roldán-Arjona T. DNA Methylation Editing by CRISPR-guided Excision of 5-Methylcytosine. J Mol Biol 2020; 432:2204-2216. [PMID: 32087201 DOI: 10.1016/j.jmb.2020.02.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 02/07/2020] [Accepted: 02/07/2020] [Indexed: 12/22/2022]
Abstract
Tools for actively targeted DNA demethylation are required to increase our knowledge about regulation and specific functions of this important epigenetic modification. DNA demethylation in mammals involves TET-mediated oxidation of 5-methylcytosine (5-meC), which may promote its replication-dependent dilution and/or active removal through base excision repair (BER). However, it is still unclear whether oxidized derivatives of 5-meC are simply DNA demethylation intermediates or rather epigenetic marks on their own. Unlike animals, plants have evolved enzymes that directly excise 5-meC without previous modification. In this work, we have fused the catalytic domain of Arabidopsis ROS1 5-meC DNA glycosylase to a CRISPR-associated null-nuclease (dCas9) and analyzed its capacity for targeted reactivation of methylation-silenced genes, in comparison to other dCas9-effectors. We found that dCas9-ROS1, but not dCas9-TET1, is able to reactivate methylation-silenced genes and induce partial demethylation in a replication-independent manner. We also found that reactivation induced by dCas9-ROS1, as well as that achieved by two different CRISPR-based chromatin effectors (dCas9-VP160 and dCas9-p300), generally decreases with methylation density. Our results suggest that plant 5-meC DNA glycosylases are a valuable addition to the CRISPR-based toolbox for epigenetic editing.
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Affiliation(s)
- Iván Devesa-Guerra
- Maimónides Biomedical Research Institute of Córdoba (IMIBIC), 14071, Córdoba, Spain; Department of Genetics, University of Córdoba, 14071, Córdoba, Spain; Reina Sofía University Hospital, 14071, Córdoba, Spain
| | - Teresa Morales-Ruiz
- Maimónides Biomedical Research Institute of Córdoba (IMIBIC), 14071, Córdoba, Spain; Department of Genetics, University of Córdoba, 14071, Córdoba, Spain; Reina Sofía University Hospital, 14071, Córdoba, Spain
| | - Juan Pérez-Roldán
- Maimónides Biomedical Research Institute of Córdoba (IMIBIC), 14071, Córdoba, Spain; Department of Genetics, University of Córdoba, 14071, Córdoba, Spain; Reina Sofía University Hospital, 14071, Córdoba, Spain
| | - Jara Teresa Parrilla-Doblas
- Maimónides Biomedical Research Institute of Córdoba (IMIBIC), 14071, Córdoba, Spain; Department of Genetics, University of Córdoba, 14071, Córdoba, Spain; Reina Sofía University Hospital, 14071, Córdoba, Spain
| | - Macarena Dorado-León
- Maimónides Biomedical Research Institute of Córdoba (IMIBIC), 14071, Córdoba, Spain; Department of Genetics, University of Córdoba, 14071, Córdoba, Spain; Reina Sofía University Hospital, 14071, Córdoba, Spain
| | - María Victoria García-Ortiz
- Maimónides Biomedical Research Institute of Córdoba (IMIBIC), 14071, Córdoba, Spain; Department of Genetics, University of Córdoba, 14071, Córdoba, Spain; Reina Sofía University Hospital, 14071, Córdoba, Spain
| | - Rafael R Ariza
- Maimónides Biomedical Research Institute of Córdoba (IMIBIC), 14071, Córdoba, Spain; Department of Genetics, University of Córdoba, 14071, Córdoba, Spain; Reina Sofía University Hospital, 14071, Córdoba, Spain
| | - Teresa Roldán-Arjona
- Maimónides Biomedical Research Institute of Córdoba (IMIBIC), 14071, Córdoba, Spain; Department of Genetics, University of Córdoba, 14071, Córdoba, Spain; Reina Sofía University Hospital, 14071, Córdoba, Spain.
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Parrilla-Doblas JT, Roldán-Arjona T, Ariza RR, Córdoba-Cañero D. Active DNA Demethylation in Plants. Int J Mol Sci 2019; 20:E4683. [PMID: 31546611 PMCID: PMC6801703 DOI: 10.3390/ijms20194683] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 09/17/2019] [Accepted: 09/19/2019] [Indexed: 02/06/2023] Open
Abstract
Methylation of cytosine (5-meC) is a critical epigenetic modification in many eukaryotes, and genomic DNA methylation landscapes are dynamically regulated by opposed methylation and demethylation processes. Plants are unique in possessing a mechanism for active DNA demethylation involving DNA glycosylases that excise 5-meC and initiate its replacement with unmodified C through a base excision repair (BER) pathway. Plant BER-mediated DNA demethylation is a complex process involving numerous proteins, as well as additional regulatory factors that avoid accumulation of potentially harmful intermediates and coordinate demethylation and methylation to maintain balanced yet flexible DNA methylation patterns. Active DNA demethylation counteracts excessive methylation at transposable elements (TEs), mainly in euchromatic regions, and one of its major functions is to avoid methylation spreading to nearby genes. It is also involved in transcriptional activation of TEs and TE-derived sequences in companion cells of male and female gametophytes, which reinforces transposon silencing in gametes and also contributes to gene imprinting in the endosperm. Plant 5-meC DNA glycosylases are additionally involved in many other physiological processes, including seed development and germination, fruit ripening, and plant responses to a variety of biotic and abiotic environmental stimuli.
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Affiliation(s)
- Jara Teresa Parrilla-Doblas
- Maimónides Biomedical Research Institute of Córdoba (IMIBIC), 14071 Córdoba, Spain.
- Department of Genetics, University of Córdoba, 14071 Córdoba, Spain.
- Reina Sofía University Hospital, 14071 Córdoba, Spain.
| | - Teresa Roldán-Arjona
- Maimónides Biomedical Research Institute of Córdoba (IMIBIC), 14071 Córdoba, Spain.
- Department of Genetics, University of Córdoba, 14071 Córdoba, Spain.
- Reina Sofía University Hospital, 14071 Córdoba, Spain.
| | - Rafael R Ariza
- Maimónides Biomedical Research Institute of Córdoba (IMIBIC), 14071 Córdoba, Spain.
- Department of Genetics, University of Córdoba, 14071 Córdoba, Spain.
- Reina Sofía University Hospital, 14071 Córdoba, Spain.
| | - Dolores Córdoba-Cañero
- Maimónides Biomedical Research Institute of Córdoba (IMIBIC), 14071 Córdoba, Spain.
- Department of Genetics, University of Córdoba, 14071 Córdoba, Spain.
- Reina Sofía University Hospital, 14071 Córdoba, Spain.
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Hsu CC, Lai PH, Chen TC, Tsai WC, Hsu JL, Hsiao YY, Wu WL, Tsai CH, Chen WH, Chen HH. PePIF1, a P-lineage of PIF-like transposable element identified in protocorm-like bodies of Phalaenopsis orchids. BMC Genomics 2019; 20:25. [PMID: 30626325 PMCID: PMC6327408 DOI: 10.1186/s12864-018-5420-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2018] [Accepted: 12/27/2018] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND Orchids produce a colorless protocorm by symbiosis with fungi upon seed germination. For mass production of orchids, the prevailing approaches are both generation of protocorm-like bodies (PLBs) from callus and multiplication of adventitious buds on inflorescence. However, somaclonal variations occur during micropropagation. RESULTS We isolated the two most expressed transposable elements belonging to P Instability Factor (PIF)-like transposons. Among them, a potential autonomous element was identified by similarity analysis against the whole-genome sequence of Phalaenopsis equestris and named PePIF1. It contains a 19-bp terminal inverted repeat flanked by a 3-bp target site duplication and two coding regions encoding ORF1- and transposase-like proteins. Phylogenetic analysis revealed that PePIF1 belongs to a new P-lineage of PIF. Furthermore, two distinct families, PePIF1a and PePIF1b, with 29 and 37 putative autonomous elements, respectively, were isolated, along with more than 3000 non-autonomous and miniature inverted-repeat transposable element (MITE)-like elements. Among them, 828 PePIF1-related elements were inserted in 771 predicted genes. Intriguingly, PePIF1 was transposed in the somaclonal variants of Phalaenopsis cultivars, as revealed by transposon display, and the newly inserted genes were identified and sequenced. CONCLUSION A PIF-like element, PePIF1, was identified in the Phalaenopsis genome and actively transposed during micropropagation. With the identification of PePIF1, we have more understanding of the Phalaenopsis genome structure and somaclonal variations during micropropagation for use in orchid breeding and production.
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Affiliation(s)
- Chia-Chi Hsu
- Department of Life Sciences, National Cheng Kung University, Tainan, Taiwan
| | - Pei-Han Lai
- Department of Life Sciences, National Cheng Kung University, Tainan, Taiwan
| | - Tien-Chih Chen
- Department of Life Sciences, National Cheng Kung University, Tainan, Taiwan
| | - Wen-Chieh Tsai
- Institute of Tropical Plant Sciences, National Chung Hsing University, Tainan, Taiwan
| | - Jui-Lin Hsu
- Orchid Research and Development Center, National Cheng Kung University, Tainan, Taiwan
| | - Yu-Yun Hsiao
- Orchid Research and Development Center, National Cheng Kung University, Tainan, Taiwan
| | - Wen-Luan Wu
- Department of Life Sciences, National Cheng Kung University, Tainan, Taiwan
| | - Ching-Hsiu Tsai
- Graduate Institute of Biotechnology, National Chung Hsing University, Taichung, Taiwan
| | - Wen-Huei Chen
- Orchid Research and Development Center, National Cheng Kung University, Tainan, Taiwan
| | - Hong-Hwa Chen
- Department of Life Sciences, National Cheng Kung University, Tainan, Taiwan
- Institute of Tropical Plant Sciences, National Chung Hsing University, Tainan, Taiwan
- Orchid Research and Development Center, National Cheng Kung University, Tainan, Taiwan
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