1
|
Ballesteros D, Martínez MT, Sánchez-Romero C, Montalbán IA, Sales E, Moncaleán P, Arrillaga I, Corredoira E. Current status of the cryopreservation of embryogenic material of woody species. FRONTIERS IN PLANT SCIENCE 2024; 14:1337152. [PMID: 38298606 PMCID: PMC10828030 DOI: 10.3389/fpls.2023.1337152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Accepted: 12/28/2023] [Indexed: 02/02/2024]
Abstract
Cryopreservation, or the storage at liquid nitrogen temperatures (-196°C), of embryogenic cells or somatic embryos allows their long-term conservation without loss of their embryogenic capacity. During the last decade, protocols for cryopreservation of embryogenic material of woody species have been increasing in number and importance. However, despite the large experimental evidence proved in thousands of embryogenic lines, the application for the large-scale conservation of embryogenic material in cryobanks is still limited. Cryopreservation facilitates the management of embryogenic lines, reducing costs and time spent on their maintenance, thus limiting the risk of the appearance of somaclonal variation or contamination. Somatic embryogenesis in combination with cryopreservation is especially useful to preserve the juvenility of lines while the corresponding clones are being field-tested. Hence, when tree performance has been evaluated, selected varieties can be propagated from the cryostock. The traditional method of slow cooling or techniques based on vitrification are mostly applied procedures. For example, slow cooling methods are widely applied to conserve embryogenic lines of conifers. Desiccation based procedures, although simpler, have been applied in a smaller number of species. Genetic stability of the cryopreserved material is supported by multiloci PCR-derived markers in most of the assayed species, whereas DNA methylation status assays showed that cryopreservation might induce some changes that were also observed after prolonged subculture of the embryogenic lines. This article reviews the cryopreservation of embryogenic cultures in conifers, fruit species, deciduous forest species and palms, including a description of the different cryopreservation procedures and the analysis of their genetic stability after storage in liquid nitrogen.
Collapse
Affiliation(s)
- Daniel Ballesteros
- Departamento de Botánica y Geología, Facultad de Farmacia, Universitat de València, Burjassot, Valencia, Spain
- Royal Botanic Gardens, Kew, Wakehurst Place, Haywards Heath, United Kingdom
| | - María Teresa Martínez
- Misión Biológica de Galicia (MBG-CSIC), Sede Santiago de Compostela, Santiago de Compostela, Spain
| | | | | | - Ester Sales
- Dpto. Ciencias Agrarias y del Medio natural, Instituto Universitario de Investigación en Ciencias Ambientales (IUCA), Universidad de Zaragoza, Escuela Politécnica Superior, Huesca, Spain
| | | | - Isabel Arrillaga
- Institut Biotec/Med, Dpto Biología Vegetal, Facultad de Farmacia, Universitat de València, Burjassot, Valencia, Spain
| | - Elena Corredoira
- Misión Biológica de Galicia (MBG-CSIC), Sede Santiago de Compostela, Santiago de Compostela, Spain
| |
Collapse
|
2
|
Agius DR, Kapazoglou A, Avramidou E, Baranek M, Carneros E, Caro E, Castiglione S, Cicatelli A, Radanovic A, Ebejer JP, Gackowski D, Guarino F, Gulyás A, Hidvégi N, Hoenicka H, Inácio V, Johannes F, Karalija E, Lieberman-Lazarovich M, Martinelli F, Maury S, Mladenov V, Morais-Cecílio L, Pecinka A, Tani E, Testillano PS, Todorov D, Valledor L, Vassileva V. Exploring the crop epigenome: a comparison of DNA methylation profiling techniques. FRONTIERS IN PLANT SCIENCE 2023; 14:1181039. [PMID: 37389288 PMCID: PMC10306282 DOI: 10.3389/fpls.2023.1181039] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 04/27/2023] [Indexed: 07/01/2023]
Abstract
Epigenetic modifications play a vital role in the preservation of genome integrity and in the regulation of gene expression. DNA methylation, one of the key mechanisms of epigenetic control, impacts growth, development, stress response and adaptability of all organisms, including plants. The detection of DNA methylation marks is crucial for understanding the mechanisms underlying these processes and for developing strategies to improve productivity and stress resistance of crop plants. There are different methods for detecting plant DNA methylation, such as bisulfite sequencing, methylation-sensitive amplified polymorphism, genome-wide DNA methylation analysis, methylated DNA immunoprecipitation sequencing, reduced representation bisulfite sequencing, MS and immuno-based techniques. These profiling approaches vary in many aspects, including DNA input, resolution, genomic region coverage, and bioinformatics analysis. Selecting an appropriate methylation screening approach requires an understanding of all these techniques. This review provides an overview of DNA methylation profiling methods in crop plants, along with comparisons of the efficacy of these techniques between model and crop plants. The strengths and limitations of each methodological approach are outlined, and the importance of considering both technical and biological factors are highlighted. Additionally, methods for modulating DNA methylation in model and crop species are presented. Overall, this review will assist scientists in making informed decisions when selecting an appropriate DNA methylation profiling method.
Collapse
Affiliation(s)
- Dolores Rita Agius
- Centre of Molecular Medicine and Biobanking, University of Malta, Msida, Malta
- Biology Department, Ġ.F.Abela Junior College, Msida, Malta
| | - Aliki Kapazoglou
- Department of Vitis, Institute of Olive Tree, Subtropical Crops and Viticulture (IOSV), Hellenic Agricultural Organization-DIMITRA (ELGO-DIMITRA), Athens, Greece
| | - Evangelia Avramidou
- Laboratory of Forest Genetics and Biotechnology, Institute of Mediterranean Forest Ecosystems, Hellenic Agricultural Organization-DIMITRA (ELGO-DIMITRA), Athens, Greece
| | - Miroslav Baranek
- Mendeleum-Insitute of Genetics, Faculty of Horticulture, Mendel University in Brno, Lednice, Czechia
| | - Elena Carneros
- Center for Biological Research (CIB) of the Spanish National Research Council (CSIC), Madrid, Spain
| | - Elena Caro
- Centro de Biotecnología y Genómica de Plantas, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Universidad Politécnica de Madrid (UPM), Madrid, Spain
| | - Stefano Castiglione
- Department of Chemistry and Biology ‘A. Zambelli’, University of Salerno, Fisciano, Italy
| | - Angela Cicatelli
- Department of Chemistry and Biology ‘A. Zambelli’, University of Salerno, Fisciano, Italy
| | - Aleksandra Radanovic
- Institute of Field and Vegetable Crops, National Institute of Republic of Serbia, Novi Sad, Serbia
| | - Jean-Paul Ebejer
- Centre of Molecular Medicine and Biobanking, University of Malta, Msida, Malta
| | - Daniel Gackowski
- Department of Clinical Biochemistry, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Bydgoszcz, Poland
| | - Francesco Guarino
- Department of Chemistry and Biology ‘A. Zambelli’, University of Salerno, Fisciano, Italy
| | - Andrea Gulyás
- Centre for Agricultural Genomics and Biotechnology, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, Nyíregyháza, Hungary
| | - Norbert Hidvégi
- Centre for Agricultural Genomics and Biotechnology, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, Nyíregyháza, Hungary
| | - Hans Hoenicka
- Genomic Research Department, Thünen Institute of Forest Genetics, Grosshansdorf, Germany
| | - Vera Inácio
- BioISI – BioSystems & Integrative Sciences Institute, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
| | - Frank Johannes
- Plant Epigenomics, Technical University of Munich (TUM), Freising, Germany
| | - Erna Karalija
- Faculty of Science, University of Sarajevo, Sarajevo, Bosnia and Herzegovina
| | - Michal Lieberman-Lazarovich
- Department of Vegetables and Field Crops, Agricultural Research Organization, Volcani Center, Institute of Plant Sciences, Rishon LeZion, Israel
| | | | - Stéphane Maury
- Laboratoire de Biologie des Ligneux et des Grandes Cultures EA1207 USC1328, INRAE, Université d’Orléans, Orléans, France
| | - Velimir Mladenov
- Faculty of Agriculture, University of Novi Sad, Novi Sad, Serbia
| | - Leonor Morais-Cecílio
- Linking Landscape, Environment, Agriculture and Food (LEAF), Institute of Agronomy, University of Lisbon, Lisbon, Portugal
| | - Ales Pecinka
- Centre of Plant Structural and Functional Genomics, Institute of Experimental Botany of the Czech Academy of Sciences, Olomouc, Czechia
| | - Eleni Tani
- Laboratory of Plant Breeding and Biometry, Department of Crop Science, Agricultural University of Athens, Athens, Greece
| | - Pilar S. Testillano
- Center for Biological Research (CIB) of the Spanish National Research Council (CSIC), Madrid, Spain
| | - Dimitar Todorov
- Department of Molecular Biology and Genetics, Institute of Plant Physiology and Genetics, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Luis Valledor
- Plant Physiology, Department of Organisms and Systems Biology and University Institute of Biotechnology of Asturias, University of Oviedo, Oviedo, Spain
| | - Valya Vassileva
- Department of Molecular Biology and Genetics, Institute of Plant Physiology and Genetics, Bulgarian Academy of Sciences, Sofia, Bulgaria
| |
Collapse
|
3
|
Xing X, Liu M, Zhou R, Jiang F, Bai Y, Wei H, Zhang D, Wei J, Wu Z. Ascorbic acid addition during dehydration improves garlic shoot tip cryopreservation but does not affect viral load. Cryobiology 2022; 107:64-73. [PMID: 35568161 DOI: 10.1016/j.cryobiol.2022.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 05/06/2022] [Accepted: 05/06/2022] [Indexed: 11/19/2022]
Abstract
Cryopreservation is known be an effective method for virus elimination in garlic. However, oxidative damage during the cryopreservation seriously affects the survival of garlic after cryopreservation. Ascorbic acid (AsA) can reduce oxidative damage and improve regrowth following cryopreservation, and its effect may be influenced by the step during which it is added. In this study, AsA was added at the osmoprotection (O) and dehydration (DE) steps of cryopreservation. By observing the dynamic changes in cell viability and reactive oxygen species (ROS) components with different AsA treatments, AsA has been linked to the reduced accumulation of ROS in the shoot tips. Increased gene expression levels of antioxidant enzymes also explained the ROS scavenging effect of AsA. The correlation analysis between cell viability, ROS, membrane lipid peroxidation-related indicators and antioxidant-related indicators showed that membrane lipid peroxidation caused by excess ROS was the main factor affecting cell viability. Ascorbic acid added during dehydration minimized the accumulation of ROS from dehydration to dilution and alleviated the oxidative damage during cryopreservation. Thus, the survival and regrowth of the garlic was significantly improved after cryopreservation. Dehydration was found to be the suitable step for the addition of AsA during garlic cryopreservation. We further evaluated the virus elimination effect under optimal AsA treatment. However, there was no significant difference in virus content in regenerated plants when compared with the control.
Collapse
Affiliation(s)
- Xiaodong Xing
- College of Horticulture, Nanjing Agricultural University, 1 Weigang, Nanjing, 210095, China; Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in East China, Ministry of Agriculture, Nanjing, China
| | - Min Liu
- College of Horticulture, Nanjing Agricultural University, 1 Weigang, Nanjing, 210095, China; Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in East China, Ministry of Agriculture, Nanjing, China
| | - Rong Zhou
- College of Horticulture, Nanjing Agricultural University, 1 Weigang, Nanjing, 210095, China; Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in East China, Ministry of Agriculture, Nanjing, China
| | - Fangling Jiang
- College of Horticulture, Nanjing Agricultural University, 1 Weigang, Nanjing, 210095, China; Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in East China, Ministry of Agriculture, Nanjing, China
| | - Yunhe Bai
- College of Horticulture, Nanjing Agricultural University, 1 Weigang, Nanjing, 210095, China; Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in East China, Ministry of Agriculture, Nanjing, China
| | - Hanyu Wei
- College of Horticulture, Nanjing Agricultural University, 1 Weigang, Nanjing, 210095, China; Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in East China, Ministry of Agriculture, Nanjing, China
| | - Deng Zhang
- College of Horticulture, Nanjing Agricultural University, 1 Weigang, Nanjing, 210095, China; Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in East China, Ministry of Agriculture, Nanjing, China
| | - Jingjing Wei
- College of Horticulture, Nanjing Agricultural University, 1 Weigang, Nanjing, 210095, China; Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in East China, Ministry of Agriculture, Nanjing, China
| | - Zhen Wu
- College of Horticulture, Nanjing Agricultural University, 1 Weigang, Nanjing, 210095, China; Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in East China, Ministry of Agriculture, Nanjing, China.
| |
Collapse
|
4
|
Wang MR, Bi W, Shukla MR, Ren L, Hamborg Z, Blystad DR, Saxena PK, Wang QC. Epigenetic and Genetic Integrity, Metabolic Stability, and Field Performance of Cryopreserved Plants. PLANTS (BASEL, SWITZERLAND) 2021; 10:1889. [PMID: 34579422 PMCID: PMC8467502 DOI: 10.3390/plants10091889] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 08/31/2021] [Accepted: 09/07/2021] [Indexed: 11/28/2022]
Abstract
Cryopreservation is considered an ideal strategy for the long-term preservation of plant genetic resources. Significant progress was achieved over the past several decades, resulting in the successful cryopreservation of the genetic resources of diverse plant species. Cryopreservation procedures often employ in vitro culture techniques and require the precise control of several steps, such as the excision of explants, preculture, osmo- and cryoprotection, dehydration, freeze-thaw cycle, unloading, and post-culture for the recovery of plants. These processes create a stressful environment and cause reactive oxygen species (ROS)-induced oxidative stress, which is detrimental to the growth and regeneration of tissues and plants from cryopreserved tissues. ROS-induced oxidative stresses were documented to induce (epi)genetic and somatic variations. Therefore, the development of true-to-type regenerants of the source germplasm is of primary concern in the application of plant cryopreservation technology. The present article provides a comprehensive assessment of epigenetic and genetic integrity, metabolic stability, and field performance of cryopreserved plants developed in the past decade. Potential areas and the directions of future research in plant cryopreservation are also proposed.
Collapse
Affiliation(s)
- Min-Rui Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Science, Northwest A&F University, Yangling District, Xianyang 712100, China;
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling District, Xianyang 712100, China
| | - Wenlu Bi
- Department of Plant Agriculture, Gosling Research Institute for Plant Preservation, University of Guelph, Guelph, ON N1G 2W1, Canada; (W.B.); (M.R.S.); (P.K.S.)
| | - Mukund R. Shukla
- Department of Plant Agriculture, Gosling Research Institute for Plant Preservation, University of Guelph, Guelph, ON N1G 2W1, Canada; (W.B.); (M.R.S.); (P.K.S.)
| | - Li Ren
- Institute for Agri-Food Standards and Testing Technology, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China;
| | - Zhibo Hamborg
- Division of Biotechnology and Plant Health, Norwegian Institute of Bioeconomy Research (NIBIO), 1431 Ås, Norway; (Z.H.); (D.-R.B.)
| | - Dag-Ragnar Blystad
- Division of Biotechnology and Plant Health, Norwegian Institute of Bioeconomy Research (NIBIO), 1431 Ås, Norway; (Z.H.); (D.-R.B.)
| | - Praveen K. Saxena
- Department of Plant Agriculture, Gosling Research Institute for Plant Preservation, University of Guelph, Guelph, ON N1G 2W1, Canada; (W.B.); (M.R.S.); (P.K.S.)
| | - Qiao-Chun Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F University, Yangling District, Xianyang 712100, China
| |
Collapse
|
5
|
Roque-Borda CA, Kulus D, Vacaro de Souza A, Kaviani B, Vicente EF. Cryopreservation of Agronomic Plant Germplasm Using Vitrification-Based Methods: An Overview of Selected Case Studies. Int J Mol Sci 2021; 22:6157. [PMID: 34200414 PMCID: PMC8201202 DOI: 10.3390/ijms22116157] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 06/04/2021] [Accepted: 06/04/2021] [Indexed: 02/07/2023] Open
Abstract
Numerous environmental and endogenous factors affect the level of genetic diversity in natural populations. Genetic variability is the cornerstone of evolution and adaptation of species. However, currently, more and more plant species and local varieties (landraces) are on the brink of extinction due to anthropopression and climate change. Their preservation is imperative for the sake of future breeding programs. Gene banks have been created worldwide to conserve different plant species of cultural and economic importance. Many of them apply cryopreservation, a conservation method in which ultra-low temperatures (-135 °C to -196 °C) are used for long-term storage of tissue samples, with little risk of variation occurrence. Cells can be successfully cryopreserved in liquid nitrogen (LN) when the adverse effect of ice crystal formation and growth is mitigated by the removal of water and the formation of the so-called biological glass (vitrification). This state can be achieved in several ways. The involvement of key cold-regulated genes and proteins in the acquisition of cold tolerance in plant tissues may additionally improve the survival of LN-stored explants. The present review explains the importance of cryostorage in agronomy and presents an overview of the recent works accomplished with this strategy. The most widely used cryopreservation techniques, classic and modern cryoprotective agents, and some protocols applied in crops are considered to understand which parameters provide the establishment of high quality and broadly applicable cryopreservation. Attention is also focused on the issues of genetic integrity and functional genomics in plant cryobiology.
Collapse
Affiliation(s)
- Cesar Augusto Roque-Borda
- School of Agricultural and Veterinarian Sciences, São Paulo State University (UNESP), Jaboticabal 14884-900, SP, Brazil;
| | - Dariusz Kulus
- Laboratory of Ornamental Plants and Vegetable Crops, Faculty of Agriculture and Biotechnology, UTP University of Science and Technology in Bydgoszcz, Bernardyńska 6, 85-029 Bydgoszcz, Poland
| | - Angela Vacaro de Souza
- School of Sciences and Engineering, São Paulo State University (UNESP), Tupã 17602-496, SP, Brazil; (A.V.d.S.); (E.F.V.)
| | - Behzad Kaviani
- Department of Horticultural Science, Rasht Branch, Islamic Azad University, Rasht 4147654919, Iran;
| | - Eduardo Festozo Vicente
- School of Sciences and Engineering, São Paulo State University (UNESP), Tupã 17602-496, SP, Brazil; (A.V.d.S.); (E.F.V.)
| |
Collapse
|
6
|
Application of the MSAP Technique to Evaluate Epigenetic Changes in Plant Conservation. Int J Mol Sci 2020; 21:ijms21207459. [PMID: 33050382 PMCID: PMC7589462 DOI: 10.3390/ijms21207459] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Revised: 09/29/2020] [Accepted: 10/08/2020] [Indexed: 02/08/2023] Open
Abstract
Epigenetic variation, and particularly DNA methylation, is involved in plasticity and responses to changes in the environment. Conservation biology studies have focused on the measurement of this variation to establish demographic parameters, diversity levels and population structure to design the appropriate conservation strategies. However, in ex situ conservation approaches, the main objective is to guarantee the characteristics of the conserved material (phenotype and epi-genetic). We review the use of the Methylation Sensitive Amplified Polymorphism (MSAP) technique to detect changes in the DNA methylation patterns of plant material conserved by the main ex situ plant conservation methods: seed banks, in vitro slow growth and cryopreservation. Comparison of DNA methylation patterns before and after conservation is a useful tool to check the fidelity of the regenerated plants, and, at the same time, may be related with other genetic variations that might appear during the conservation process (i.e., somaclonal variation). Analyses of MSAP profiles can be useful in the management of ex situ plant conservation but differs in the approach used in the in situ conservation. Likewise, an easy-to-use methodology is necessary for a rapid interpretation of data, in order to be readily implemented by conservation managers.
Collapse
|
7
|
Pirredda M, González-Benito ME, Martín C, Mira S. Genetic and Epigenetic Stability in Rye Seeds under Different Storage Conditions: Ageing and Oxygen Effect. PLANTS 2020; 9:plants9030393. [PMID: 32210066 PMCID: PMC7154831 DOI: 10.3390/plants9030393] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 03/16/2020] [Accepted: 03/19/2020] [Indexed: 02/01/2023]
Abstract
Seed ageing is a complex process and can be described as the loss of viability or quality with time. It is important to elucidate whether genetic and epigenetic stability is altered in stored seeds and in seedlings produced from them. Non-stored and stored rye seeds at different stages of ageing were compared, as well as the seedlings obtained from them. Seeds were stored at 35 °C and 15% water content, under vacuum or air atmosphere. DNA of seeds and seedlings was isolated at three stages of the deterioration curve: P75 (13 days), P20 (29 days), and P0 (36 days). Genetic stability was assessed by RAPD technique, and epigenetic changes by MSAP markers. While seeds showed genetic stability after storage, the similarity of seedlings obtained from seeds stored for 29 days was lower (95%) when compared to seedlings from control seeds. Epigenetic changes were between 15% and 30% (both de novo methylation and demethylation) in the stored seeds compared to control seeds, with no differences between 13 and 29 days of storage with either air or vacuum atmospheres. In seedlings, epigenetic changes significantly increased with storage time. In conclusion, ageing increased epigenetic instability in both seeds and seedlings, when compared to controls.
Collapse
Affiliation(s)
| | | | | | - Sara Mira
- Correspondence: ; Tel.: +34-91-06-70888
| |
Collapse
|