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Hale B, Phipps C, Rao N, Wijeratne A, Phillips GC. Correction: Hale et al. Differential Expression Profiling Reveals Stress-Induced Cell Fate Divergence in Soybean Microspores. Plants 2020, 9, 1510. PLANTS (BASEL, SWITZERLAND) 2024; 13:1881. [PMID: 38999723 PMCID: PMC11244525 DOI: 10.3390/plants13131881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2024] [Accepted: 06/19/2024] [Indexed: 07/14/2024]
Abstract
In the original publication [...].
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Affiliation(s)
- Brett Hale
- College of Science and Mathematics, Arkansas State University, Jonesboro, AR 72467-1080, USA;
- Arkansas Biosciences Institute, Arkansas State University, Jonesboro, AR 72467-0639, USA; (C.P.); (N.R.); (G.C.P.)
| | - Callie Phipps
- Arkansas Biosciences Institute, Arkansas State University, Jonesboro, AR 72467-0639, USA; (C.P.); (N.R.); (G.C.P.)
| | - Naina Rao
- Arkansas Biosciences Institute, Arkansas State University, Jonesboro, AR 72467-0639, USA; (C.P.); (N.R.); (G.C.P.)
| | - Asela Wijeratne
- College of Science and Mathematics, Arkansas State University, Jonesboro, AR 72467-1080, USA;
- Arkansas Biosciences Institute, Arkansas State University, Jonesboro, AR 72467-0639, USA; (C.P.); (N.R.); (G.C.P.)
| | - Gregory C. Phillips
- Arkansas Biosciences Institute, Arkansas State University, Jonesboro, AR 72467-0639, USA; (C.P.); (N.R.); (G.C.P.)
- College of Agriculture, Arkansas State University, Jonesboro, AR 72467-1080, USA
- Agricultural Experiment Station, University of Arkansas System Division of Agriculture, Jonesboro, AR 72467-2340, USA
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Mestinšek Mubi Š, Kunej U, Vogrinčič V, Jakše J, Murovec J. The effect of phytosulfokine alpha on haploid embryogenesis and gene expression of Brassica napus microspore cultures. FRONTIERS IN PLANT SCIENCE 2024; 15:1336519. [PMID: 38425801 PMCID: PMC10902448 DOI: 10.3389/fpls.2024.1336519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 01/30/2024] [Indexed: 03/02/2024]
Abstract
Microspore embryogenesis (ME) is the most powerful tool for creating homozygous lines in plant breeding and molecular biology research. It is still based mainly on the reprogramming of microspores by temperature, osmotic and/or nutrient stress. New compounds are being sought that could increase the efficiency of microspore embryogenesis or even induce the formation of haploid embryos from recalcitrant genotypes. Among these, the mitogenic factor phytosulfokine alpha (PSK-α) is promising due to its broad spectrum of activity in vivo and in vitro. The aim of our study was to investigate the effect of PSK-α on haploid embryogenesis from microspores of oilseed rape (Brassica napus L., DH4079), one of the most important oil crops and a model plant for studying the molecular mechanisms controlling embryo formation. We tested different concentrations (0, 0.01, 0.1 and 1 µM) of the peptide and evaluated its effect on microspore viability and embryo regeneration after four weeks of culture. Our results showed a positive correlation between addition of PSK-α and cultured microspore viability and a positive effect also on the number of developed embryos. The analysis of transcriptomes across three time points (day 0, 2 and 4) with or without PSK-α supplementation (15 RNA libraries in total) unveiled differentially expressed genes pivotal in cell division, microspore embryogenesis, and subsequent regeneration. PCA grouped transcriptomes by RNA sampling time, with the first two principal components explaining 56.8% variability. On day 2 with PSK, 45 genes (15 up- and 30 down-regulated) were differentially expressed when PSK-α was added and their number increased to 304 by day 4 (30 up- and 274 down-regulated). PSK, PSKR, and PSI gene expression analysis revealed dynamic patterns, with PSK2 displaying the highest increase and overall expression during microspore culture at days 2 and 4. Despite some variations, only PSK1 showed significant differential expression upon PSK-α addition. Of 16 ME-related molecular markers, 3 and 15 exhibited significant differential expression in PSK-supplemented cultures at days 2 and 4, respectively. Embryo-specific markers predominantly expressed after 4 days of culture, with higher expression in medium without PSK, while on day 0, numerous sporophyte-specific markers were highly expressed.
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Li Y, Zong Y, Li W, Guo G, Zhou L, Xu H, Gao R, Liu C. Transcriptomics integrated with metabolomics reveals the effect of cold stress on rice microspores. BMC PLANT BIOLOGY 2023; 23:521. [PMID: 37891481 PMCID: PMC10605337 DOI: 10.1186/s12870-023-04530-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 10/16/2023] [Indexed: 10/29/2023]
Abstract
BACKGROUND Microspore culture is one of the important biotechnological tools in plant breeding. The induction of microspore embryogenesis is a critical factor that affects the yield of microspore-derived embryo productions. Cold treatment has been reported to reprogram the gametophytic pathway in various plant species. However, the exact mechanism(s) underlying the effect of cold pre-treatment of floral buds on the efficiency of ME is still not clear. RESULTS In this study, the effects of cold stress on the microspore totipotency of rice cultivar Zhonghua 11 were investigated. Our results revealed that a 10-day cold treatment is necessary for microspore embryogenesis initiation. During this period, the survival rate of microspores increased and reached a peak at 7 days post treatment (dpt), before decreasing at 10 dpt. RNA-seq analysis showed that the number of DEGs increased from 3 dpt to 10 dpt, with more downregulated DEGs than upregulated ones at the same time point. GO enrichment analysis showed a shift from 'Response to abiotic stimulus' at 3 dpt to 'Metabolic process' at 7 and 10 dpt, with the most significant category in the cellular component being 'cell wall'. KEGG analysis of the pathways revealed changes during cold treatment. Mass spectrometry was used to evaluate the variations in metabolites at 10 dpt compared to 0 dpt, with more downregulated DEMs being determined in both GC-MS and LC-MS modes. These DEMs were classified into 11 categories, Most of the DEMs belonged to 'lipids and lipid-like molecules'. KEGG analysis of DEMs indicates pathways related to amino acid and nucleotide metabolism being upregulated and those related to carbohydrate metabolism being downregulated. An integration analysis of transcriptomics and metabolomics showed that most pathways belonged to 'Amino acid metabolism' and 'Carbohydrate metabolism'. Four DEMs were identified in the interaction network, with stearidonic acid involving in the most correlations, suggesting the potential role in microspore totipotency. CONCLUSIONS Our findings exhibited the molecular events occurring during stress-induced rice microspore. Pathways related to 'Amino acid metabolism' and 'Carbohydrate metabolism' may play important roles in rice microspore totipotency. Stearidonic acid was identified, which may participate in the initiation of microspore embryogenesis.
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Affiliation(s)
- Yingbo Li
- Biotech Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, China
- Key Laboratory of Agricultural Genetics and Breeding, Shanghai, China
| | - Yingjie Zong
- Biotech Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, China
- Key Laboratory of Agricultural Genetics and Breeding, Shanghai, China
| | - Wenrui Li
- Biotech Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, China
- Key Laboratory of Agricultural Genetics and Breeding, Shanghai, China
| | - Guimei Guo
- Biotech Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, China
- Key Laboratory of Agricultural Genetics and Breeding, Shanghai, China
| | - Longhua Zhou
- Biotech Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, China
- Key Laboratory of Agricultural Genetics and Breeding, Shanghai, China
| | - Hongwei Xu
- Biotech Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, China
- Key Laboratory of Agricultural Genetics and Breeding, Shanghai, China
| | - Runhong Gao
- Biotech Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, China.
- Key Laboratory of Agricultural Genetics and Breeding, Shanghai, China.
| | - Chenghong Liu
- Biotech Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, China.
- Key Laboratory of Agricultural Genetics and Breeding, Shanghai, China.
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Pérez-Pérez Y, Solís MT, Albacete A, Testillano PS. Opposite Auxin Dynamics Determine the Gametophytic and Embryogenic Fates of the Microspore. Int J Mol Sci 2023; 24:11177. [PMID: 37446349 DOI: 10.3390/ijms241311177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 06/30/2023] [Accepted: 07/04/2023] [Indexed: 07/15/2023] Open
Abstract
The microspore can follow two different developmental pathways. In vivo microspores follow the gametophytic program to produce pollen grains. In vitro, isolated microspores can be reprogrammed by stress treatments and follow the embryogenic program, producing doubled-haploid embryos. In the present study, we analyzed the dynamics and role of endogenous auxin in microspore development during these two different scenarios, in Brassica napus. We analyzed auxin concentration, cellular accumulation, the expression of the TAA1 auxin biosynthesis gene, and the PIN1-like efflux carrier gene, as well as the effects of inhibiting auxin biosynthesis by kynurenine on microspore embryogenesis. During the gametophytic pathway, auxin levels and TAA1 and PIN1-like expression were high at early stages, in tetrads and tapetum, while they progressively decreased during gametogenesis in both pollen and tapetum cells. In contrast, in microspore embryogenesis, TAA1 and PIN1-like genes were upregulated, and auxin concentration increased from the first embryogenic divisions. Kynurenine treatment decreased both embryogenesis induction and embryo production, indicating that auxin biosynthesis is required for microspore embryogenesis initiation and progression. The findings indicate that auxin exhibits two opposite profiles during these two microspore developmental pathways, which determine the different cell fates of the microspore.
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Affiliation(s)
- Yolanda Pérez-Pérez
- Pollen Biotechnology of Crop Plants Group, Biological Research Center Margarita Salas, CIB-CSIC, Ramiro de Maeztu 9, 28040 Madrid, Spain
| | - María Teresa Solís
- Department of Genetics, Microbiology and Physiology, Complutense University of Madrid, 28040 Madrid, Spain
| | - Alfonso Albacete
- Department of Plant Nutrition, Center for Edaphology and Applied Biology of Segura, CEBAS-CSIC, Campus Universitario de Espinardo, 30100 Murcia, Spain
| | - Pilar S Testillano
- Pollen Biotechnology of Crop Plants Group, Biological Research Center Margarita Salas, CIB-CSIC, Ramiro de Maeztu 9, 28040 Madrid, Spain
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Kumar R, Saini M, Taku M, Debbarma P, Mahto RK, Ramlal A, Sharma D, Rajendran A, Pandey R, Gaikwad K, Lal SK, Talukdar A. Identification of quantitative trait loci (QTLs) and candidate genes for seed shape and 100-seed weight in soybean [ Glycine max (L.) Merr.]. FRONTIERS IN PLANT SCIENCE 2023; 13:1074245. [PMID: 36684771 PMCID: PMC9846647 DOI: 10.3389/fpls.2022.1074245] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 11/30/2022] [Indexed: 06/17/2023]
Abstract
Seed size and shape are important traits determining yield and quality in soybean. Seed size and shape are also desirable for specialty soy foods like tofu, natto, miso, and edamame. In order to find stable quantitative trait loci (QTLs) and candidate genes for seed shape and 100-seed weight, the current study used vegetable type and seed soybean-derived F2 and F2:3 mapping populations. A total of 42 QTLs were mapped, which were dispersed across 13 chromosomes. Of these, seven were determined to be stable QTLs and five of them were major QTLs, namely qSL-10-1, qSW-4-1, qSV-4-1, qSLW-10-1, and qSLH-10-1. Thirteen of the 42 QTLs detected in the current study were found at known loci, while the remaining 29 were discovered for the first time. Out of these 29 novel QTLs, 17 were major QTLs. Based on Protein Analysis Through Evolutionary Relationships (PANTHER), gene annotation information, and literature search, 66 genes within seven stable QTLs were predicted to be possible candidate genes that might regulate seed shape and seed weight in soybean. The current study identified the key candidate genes and quantitative trait loci (QTLs) controlling soybean seed shape and weight, and these results will be very helpful in marker-assisted breeding for developing soybean varieties with improved seed weight and desired seed shape.
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Affiliation(s)
- Rahul Kumar
- Division of Genetics, Indian Council of Agricultural Research (ICAR)-Indian Agricultural Research Institute (IARI), New Delhi, India
| | - Manisha Saini
- Division of Genetics, Indian Council of Agricultural Research (ICAR)-Indian Agricultural Research Institute (IARI), New Delhi, India
| | - Meniari Taku
- Division of Genetics, Indian Council of Agricultural Research (ICAR)-Indian Agricultural Research Institute (IARI), New Delhi, India
| | - Pulak Debbarma
- Division of Genetics, Indian Council of Agricultural Research (ICAR)-Indian Agricultural Research Institute (IARI), New Delhi, India
| | - Rohit Kumar Mahto
- Division of Genetics, Indian Council of Agricultural Research (ICAR)-Indian Agricultural Research Institute (IARI), New Delhi, India
- School of Biotechnology, Institute of Science, Banaras Hindu University (BHU), Varanasi, Uttar Pradesh, India
| | - Ayyagari Ramlal
- Division of Genetics, Indian Council of Agricultural Research (ICAR)-Indian Agricultural Research Institute (IARI), New Delhi, India
| | - Deepshikha Sharma
- Division of Genetics, Indian Council of Agricultural Research (ICAR)-Indian Agricultural Research Institute (IARI), New Delhi, India
| | - Ambika Rajendran
- Division of Genetics, Indian Council of Agricultural Research (ICAR)-Indian Agricultural Research Institute (IARI), New Delhi, India
| | - Renu Pandey
- Division of Plant Physiology, Indian Council of Agricultural Research (ICAR)-Indian Agricultural Research Institute, New Delhi, India
| | - Kishor Gaikwad
- Division of Molecular Biology and Biotechnology, Indian Council of Agricultural Research (ICAR)- National Institute for Plant Biotechnology, New Delhi, India
| | - S. K. Lal
- Division of Genetics, Indian Council of Agricultural Research (ICAR)-Indian Agricultural Research Institute (IARI), New Delhi, India
| | - Akshay Talukdar
- Division of Genetics, Indian Council of Agricultural Research (ICAR)-Indian Agricultural Research Institute (IARI), New Delhi, India
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Triticale doubled haploid plant regeneration factors linked by structural equation modeling. J Appl Genet 2022; 63:677-690. [PMID: 36018540 PMCID: PMC9637073 DOI: 10.1007/s13353-022-00719-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 08/10/2022] [Accepted: 08/11/2022] [Indexed: 11/26/2022]
Abstract
Triticale regeneration via anther culture faces many difficulties, e.g., a low percentage of regenerated plants and the presence of albinos. Plant regeneration may be affected by abiotic stresses and by ingredients added to the induction medium. The latter influences biochemical pathways and plant regeneration efficiency. Among such ingredients, copper and silver ions acting as cofactors for enzymatic reactions are of interest. However, their role in plant tissue cultures and relationships with biochemical pathways has not been studied yet. The study evaluated relationships between DNA methylation, changes in DNA sequence variation, and green plant regeneration efficiency influenced by copper and silver ions during triticale plant regeneration. For this purpose, a biological model based on donor plants and their regenerants, a methylation-sensitive amplified fragment length polymorphism, and structural equation modeling were employed. The green plant regeneration efficiency varied from 0.71 to 6.06 green plants per 100 plated anthers. The values for the components of tissue culture-induced variation related to cytosine methylation in a CHH sequence context (where H is A, C, or T) were 8.65% for sequence variation, 0.76% for DNA demethylation, and 0.58% for de novo methylation. The proposed model states that copper ions affect the regeneration efficiency through cytosine methylation and may induce mutations through, e.g., oxidative processes, which may interfere with the green plant regeneration efficiency. The linear regression confirms that the plant regeneration efficiency rises with increasing copper ion concentration in the absence of Ag ions in the induction medium. The least absolute shrinkage and selection operator regression shows that de novo methylation, demethylation, and copper ions may be involved in the green plant regeneration efficiency. According to structural equation modeling, copper ions play a central role in the model determining the regeneration efficiency.
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Sai CB, Chidambaranathan P, Samantaray S. Role of histone deacetylase inhibitors in androgenic callus induction of Oryza sativa sub indica, in sight into evolution and mode of action of histone deacetylase genes. Mol Biol Rep 2022; 49:2169-2183. [PMID: 34985645 DOI: 10.1007/s11033-021-07036-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 11/29/2021] [Indexed: 11/27/2022]
Abstract
BACKGROUND The potential of paddy breeding has reached its pinnacle, and hybrids have been the principal research outcome. Hence, our hypothesis was based on improvising the callus induction efficiency of recalcitrant Oryza sativa sub. indica hybrids by intervening into their cellular functions like cell division and histone regulation for the production of doubled haploids, a better output compared to hybrids. METHODOLOGY AND RESULTS Insight into the mechanism of cell division is the foremost concern in altering the same and hence studies on evolution, expression and action of histone deacetylase and its 12 genes (9 HDA and 3 HD-tunin genes) were chosen in the hypothesis. Expression of HDA genes at three stages (anther dehiscence, 1st callusing and second callusing stages) with inhibitor (trichostatin-A) interventions indicated 1st callusing stage as the most important in influencing callus induction and also the genes HDA19, 6, 15 and 5 were the most important. TSA alone had a significant impact on the regulation of the genes HDT 702, HDA19, HDA9, and HDA6. Higher expression of HDA19 and HDA6 was involved in maximizing callus induction; HDA15 had an antagonistic expression compared to HDA19/6 and might be involved in chlorophyll regulation during regeneration. Results of evolutionary analysis on histone deacetylases indicated a long and single lineage of origin denoting its importance in the basic cellular functions. The tubulin deacetylation gene HDA5, which was exclusively found in dicotyledons, had a recent evolutionary history only from terrestrial plants, and also had significant conservation in its motifs and NLS region. CONCLUSION By combating the recalcitrant nature of Indica cultivars, molecular editing on a combination of HDA genes will enhance the callus induction and regeneration efficiency of the next generation of doubled haploids, therby improving the total yield.
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Affiliation(s)
- Cayalvizhi B Sai
- Lab No 225, Crop Improvement Division, National Rice Research Institute (ICAR-NRRI), CRRI-Post, Cuttack, Odisha, 753006, India.
| | - Parameswaran Chidambaranathan
- Lab No 225, Crop Improvement Division, National Rice Research Institute (ICAR-NRRI), CRRI-Post, Cuttack, Odisha, 753006, India
| | - Sangamitra Samantaray
- Lab No 225, Crop Improvement Division, National Rice Research Institute (ICAR-NRRI), CRRI-Post, Cuttack, Odisha, 753006, India
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Hale B, Ferrie AMR, Chellamma S, Samuel JP, Phillips GC. Androgenesis-Based Doubled Haploidy: Past, Present, and Future Perspectives. FRONTIERS IN PLANT SCIENCE 2022; 12:751230. [PMID: 35069615 PMCID: PMC8777211 DOI: 10.3389/fpls.2021.751230] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Accepted: 11/22/2021] [Indexed: 05/03/2023]
Abstract
Androgenesis, which entails cell fate redirection within the microgametophyte, is employed widely for genetic gain in plant breeding programs. Moreover, androgenesis-responsive species provide tractable systems for studying cell cycle regulation, meiotic recombination, and apozygotic embryogenesis within plant cells. Past research on androgenesis has focused on protocol development with emphasis on temperature pretreatments of donor plants or floral buds, and tissue culture optimization because androgenesis has different nutritional requirements than somatic embryogenesis. Protocol development for new species and genotypes within responsive species continues to the present day, but slowly. There is more focus presently on understanding how protocols work in order to extend them to additional genotypes and species. Transcriptomic and epigenetic analyses of induced microspores have revealed some of the cellular and molecular responses required for or associated with androgenesis. For example, microRNAs appear to regulate early microspore responses to external stimuli; trichostatin-A, a histone deacetylase inhibitor, acts as an epigenetic additive; ά-phytosulfokine, a five amino acid sulfated peptide, promotes androgenesis in some species. Additionally, present work on gene transfer and genome editing in microspores suggest that future endeavors will likely incorporate greater precision with the genetic composition of microspores used in doubled haploid breeding, thus likely to realize a greater impact on crop improvement. In this review, we evaluate basic breeding applications of androgenesis, explore the utility of genomics and gene editing technologies for protocol development, and provide considerations to overcome genotype specificity and morphogenic recalcitrance in non-model plant systems.
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Affiliation(s)
- Brett Hale
- Molecular Biosciences Graduate Program, Arkansas State University, Jonesboro, AR, United States
- Arkansas Biosciences Institute, Arkansas State University, Jonesboro, AR, United States
| | | | | | | | - Gregory C. Phillips
- Arkansas Biosciences Institute, Arkansas State University, Jonesboro, AR, United States
- College of Agriculture, Arkansas State University, Jonesboro, AR, United States
- Agricultural Experiment Station, University of Arkansas System Division of Agriculture, Jonesboro, AR, United States
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Bednarek PT, Pachota KA, Dynkowska WM, Machczyńska J, Orłowska R. Understanding In Vitro Tissue Culture-Induced Variation Phenomenon in Microspore System. Int J Mol Sci 2021; 22:7546. [PMID: 34299165 PMCID: PMC8304781 DOI: 10.3390/ijms22147546] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 06/24/2021] [Accepted: 07/08/2021] [Indexed: 12/13/2022] Open
Abstract
In vitro tissue culture plant regeneration is a complicated process that requires stressful conditions affecting the cell functioning at multiple levels, including signaling pathways, transcriptome functioning, the interaction between cellular organelles (retro-, anterograde), compounds methylation, biochemical cycles, and DNA mutations. Unfortunately, the network linking all these aspects is not well understood, and the available knowledge is not systemized. Moreover, some aspects of the phenomenon are poorly studied. The present review attempts to present a broad range of aspects involved in the tissue culture-induced variation and hopefully would stimulate further investigations allowing a better understanding of the phenomenon and the cell functioning.
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Affiliation(s)
- Piotr Tomasz Bednarek
- Plant Breeding and Acclimatization Institute—National Research Institute, Radzików, 05-870 Błonie, Poland; (K.A.P.); (W.M.D.); (J.M.); (R.O.)
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