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Bélanger JG, Copley TR, Hoyos-Villegas V, Charron JB, O'Donoughue L. A comprehensive review of in planta stable transformation strategies. PLANT METHODS 2024; 20:79. [PMID: 38822403 PMCID: PMC11140912 DOI: 10.1186/s13007-024-01200-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Accepted: 05/01/2024] [Indexed: 06/03/2024]
Abstract
Plant transformation remains a major bottleneck to the improvement of plant science, both on fundamental and practical levels. The recalcitrant nature of most commercial and minor crops to genetic transformation slows scientific progress for a large range of crops that are essential for food security on a global scale. Over the years, novel stable transformation strategies loosely grouped under the term "in planta" have been proposed and validated in a large number of model (e.g. Arabidopsis and rice), major (e.g. wheat and soybean) and minor (e.g. chickpea and lablab bean) species. The in planta approach is revolutionary as it is considered genotype-independent, technically simple (i.e. devoid of or with minimal tissue culture steps), affordable, and easy to implement in a broad range of experimental settings. In this article, we reviewed and categorized over 300 research articles, patents, theses, and videos demonstrating the applicability of different in planta transformation strategies in 105 different genera across 139 plant species. To support this review process, we propose a classification system for the in planta techniques based on five categories and a new nomenclature for more than 30 different in planta techniques. In complement to this, we clarified some grey areas regarding the in planta conceptual framework and provided insights regarding the past, current, and future scientific impacts of these techniques. To support the diffusion of this concept across the community, this review article will serve as an introductory point for an online compendium about in planta transformation strategies that will be available to all scientists. By expanding our knowledge about in planta transformation, we can find innovative approaches to unlock the full potential of plants, support the growth of scientific knowledge, and stimulate an equitable development of plant research in all countries and institutions.
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Affiliation(s)
- Jérôme Gélinas Bélanger
- Centre de recherche sur les grains (CÉROM) Inc., 740 Chemin Trudeau, St-Mathieu-de-Beloeil, Québec, J3G 0E2, Canada.
- Department of Plant Science, McGill University, 21111 Lakeshore Road, St-Mathieu-de-Beloeil, Montréal, Québec, H9X 3V9, Canada.
| | - Tanya Rose Copley
- Centre de recherche sur les grains (CÉROM) Inc., 740 Chemin Trudeau, St-Mathieu-de-Beloeil, Québec, J3G 0E2, Canada
| | - Valerio Hoyos-Villegas
- Department of Plant Science, McGill University, 21111 Lakeshore Road, St-Mathieu-de-Beloeil, Montréal, Québec, H9X 3V9, Canada
| | - Jean-Benoit Charron
- Department of Plant Science, McGill University, 21111 Lakeshore Road, St-Mathieu-de-Beloeil, Montréal, Québec, H9X 3V9, Canada
| | - Louise O'Donoughue
- Centre de recherche sur les grains (CÉROM) Inc., 740 Chemin Trudeau, St-Mathieu-de-Beloeil, Québec, J3G 0E2, Canada.
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Banerjee S, Mukherjee A, Kundu A. The current scenario and future perspectives of transgenic oilseed mustard by CRISPR-Cas9. Mol Biol Rep 2023; 50:7705-7728. [PMID: 37432544 DOI: 10.1007/s11033-023-08660-6] [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: 09/02/2022] [Accepted: 06/30/2023] [Indexed: 07/12/2023]
Abstract
PURPOSE Production of a designer crop having added attributes is the primary goal of all plant biotechnologists. Specifically, development of a crop with a simple biotechnological approach and at a rapid pace is most desirable. Genetic engineering enables us to displace genes among species. The newly incorporated foreign gene(s) in the host genome can create a new trait(s) by regulating the genotypes and/or phenotypes. The advent of the CRISPR-Cas9 tools has enabled the modification of a plant genome easily by introducing mutation or replacing genomic fragment. Oilseed mustard varieties (e.g., Brassica juncea, Brassica nigra, Brassica napus, and Brassica carinata) are one such plants, which have been transformed with different genes isolated from the wide range of species. Current reports proved that the yield and value of oilseed mustard has been tremendously improved by the introduction of stably inherited new traits such as insect and herbicide resistance. However, the genetic transformation of oilseed mustard remains incompetent due to lack of potential plant transformation systems. To solve numerous complications involved in genetically modified oilseed mustard crop varieties regeneration procedures, scientific research is being conducted to rectify the unwanted complications. Thus, this study provides a broader overview of the present status of new traits introduced in each mentioned varieties of oilseed mustard plant by different genetical engineering tools, especially CRISPR-Cas9, which will be useful to improve the transformation system of oilseed mustard crop plants. METHODS This review presents recent improvements made in oilseed mustard genetic engineering methodologies by using CRISPR-Cas9 tools, present status of new traits introduced in oilseed mustard plant varieties. RESULTS The review highlighted that the transgenic oilseed mustard production is a challenging process and the transgenic varieties of oilseed mustard provide a powerful tool for enhanced mustard yield. Over expression studies and silencing of desired genes provide functional importance of genes involved in mustard growth and development under different biotic and abiotic stress conditions. Thus, it can be expected that in near future CRISPR can contribute enormously in improving the mustard plant's architecture and develop stress resilient oilseed mustard plant species.
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Affiliation(s)
- Sangeeta Banerjee
- Department of Microbiology, Techno India University, EM-4, Sector-V, Saltlake City, Kolkata, West Bengal, 700091, India
| | - Ananya Mukherjee
- Division of Plant Biology, Bose Institute, EN 80, Sector V, Bidhan Nagar, Kolkata, WB, 700091, India
| | - Atreyee Kundu
- Department of Microbiology, Techno India University, EM-4, Sector-V, Saltlake City, Kolkata, West Bengal, 700091, India.
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Amal TC, Karthika P, Dhandapani G, Selvakumar S, Vasanth K. A simple and efficient Agrobacterium-mediated in planta transformation protocol for horse gram (Macrotyloma uniflorum Lam. Verdc.). J Genet Eng Biotechnol 2020; 18:9. [PMID: 32206908 PMCID: PMC7090105 DOI: 10.1186/s43141-020-00023-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Accepted: 03/02/2020] [Indexed: 11/24/2022]
Abstract
Background Recalcitrant nature is a major constraint for the in vitro regeneration and genetic transformation of leguminous species members. Therefore, an improved genetic transformation in horse gram has been developed via in planta method, in which Agrobacterium strain harboring binary vector pCAMBIA2301 was used for the transformation. Several factors affecting in planta transformations were put forth viz. Agrobacterium cell density, co-cultivation, and sonication combined with vacuum infiltration duration which were optimized. Results Germinated seeds were sonicated and vacuum infiltrated with different densities of Agrobacterium culture and co-cultivated in half-strength MS medium with 100 μM of acetosyringone for 48 h. Seedlings were washed with cefotaxime and sowed in vermiculite soil for maturation. T1 plants were subjected to histochemical and molecular analysis to ensure transformation efficiency. Among various combinations analyzed, maximum transformation efficiency (20.8%) was attained with seeds of 5 min sonication combined with vacuum infiltration with 0.6 optical density of Agrobacterium culture. Conclusions It concludes that a different Agrobacterium cell density with sonication combined with vacuum infiltration has improved transgenic efficiency in horse gram plants. This simple and efficient method is feasible for the stable expression of foreign genes that could be beneficial for future food security.
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Affiliation(s)
- Thomas Cheeran Amal
- Molecular Biology Laboratory, Department of Botany, School of Life Sciences, Bharathiar University, Coimbatore, Tamil Nadu, 641046, India
| | - Palanisamy Karthika
- Molecular Biology Laboratory, Department of Botany, School of Life Sciences, Bharathiar University, Coimbatore, Tamil Nadu, 641046, India
| | - Gurusamy Dhandapani
- PG Research Department of Botany, Kongunadu Arts and Science College, Bharathiar University, Coimbatore, Tamil Nadu, 641029, India
| | - Subramaniam Selvakumar
- Department of Biochemistry, School of Life Sciences, Bharathiar University, Coimbatore, Tamil Nadu, 641046, India
| | - Krishnan Vasanth
- Molecular Biology Laboratory, Department of Botany, School of Life Sciences, Bharathiar University, Coimbatore, Tamil Nadu, 641046, India.
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Zhao X, Meng Z, Wang Y, Chen W, Sun C, Cui B, Cui J, Yu M, Zeng Z, Guo S, Luo D, Cheng JQ, Zhang R, Cui H. Pollen magnetofection for genetic modification with magnetic nanoparticles as gene carriers. NATURE PLANTS 2017; 3:956-964. [PMID: 29180813 DOI: 10.1038/s41477-017-0063-z] [Citation(s) in RCA: 143] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Accepted: 10/25/2017] [Indexed: 05/18/2023]
Abstract
Genetic modification plays a vital role in breeding new crops with excellent traits. Almost all the current genetic modification methods require regeneration from tissue culture, involving complicated, long and laborious processes. In particular, many crop species such as cotton are difficult to regenerate. Here, we report a novel transformation platform technology, pollen magnetofection, to directly produce transgenic seeds without regeneration. In this system, exogenous DNA loaded with magnetic nanoparticles was delivered into pollen in the presence of a magnetic field. Through pollination with magnetofected pollen, transgenic plants were successfully generated from transformed seeds. Exogenous DNA was successfully integrated into the genome, effectively expressed and stably inherited in the offspring. Our system is culture-free and genotype independent. In addition, it is simple, fast and capable of multi-gene transformation. We envision that pollen magnetofection can transform almost all crops, greatly facilitating breeding processes of new varieties of transgenic crops.
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Affiliation(s)
- Xiang Zhao
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
- Nanobiotechnology Research Center, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Zhigang Meng
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
- Nanobiotechnology Research Center, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yan Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
- Nanobiotechnology Research Center, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Wenjie Chen
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
- Nanobiotechnology Research Center, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Changjiao Sun
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
- Nanobiotechnology Research Center, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Bo Cui
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
- Nanobiotechnology Research Center, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jinhui Cui
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
- Nanobiotechnology Research Center, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Manli Yu
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
- Nanobiotechnology Research Center, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Zhanghua Zeng
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
- Nanobiotechnology Research Center, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Sandui Guo
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Dan Luo
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY, USA
- Kavli Institute at Cornell for Nanoscale Science, Cornell University, Ithaca, NY, USA
- Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, China
| | - Jerry Q Cheng
- Robert Wood Johnson Medical School, Rutgers University, New Brunswick, NJ, USA
| | - Rui Zhang
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China.
| | - Haixin Cui
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China.
- Nanobiotechnology Research Center, Chinese Academy of Agricultural Sciences, Beijing, China.
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Eudes F, Shim YS, Jiang F. Engineering the haploid genome of microspores. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2014. [DOI: 10.1016/j.bcab.2013.11.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Peñaranda MI, Ligarreto GA, Manuel Nuñez V. Estudios de transformación genética en arveja voluble cultivar Santa Isabel. REVISTA COLOMBIANA DE BIOTECNOLOGÍA 2013. [DOI: 10.15446/rev.colomb.biote.v15n2.41264] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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7
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Chumakov MI, Moiseeva EM. Technologies of Agrobacterium plant transformation In planta. APPL BIOCHEM MICRO+ 2012. [DOI: 10.1134/s0003683812080017] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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8
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Physical methods for genetic plant transformation. Phys Life Rev 2012; 9:308-45. [DOI: 10.1016/j.plrev.2012.06.002] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2012] [Accepted: 06/04/2012] [Indexed: 01/27/2023]
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Eapen S. Pollen grains as a target for introduction of foreign genes into plants: an assessment. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2011; 17:1-8. [PMID: 23572990 PMCID: PMC3550569 DOI: 10.1007/s12298-010-0042-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Introduction of foreign genes and development of transgenic plants have become an integral part of crop improvement programmes in the last decade. However, most of the present day plant transformation protocols require long periods for development of transgenic plants and need skilled personnel. Development of alternate, simple and rapid transformation protocols for development of transgenic plants can overcome the constraints of in vitro culture, regeneration and associated problems. Pollen grains, due to their abundance and ease with which they can be handled are ideal targets for introduction of foreign genes into the germ line. However, progress in introduction of transgenes into pollen grains and their subsequent use in fertilization leading to development of transgenic plants are limited. With the recent progress made in understanding of pollen development along with reports of successful pollen-mediated transformation in important crop plants, it should be possible to extend this simple method of transformation to other crop plants. The review deals with development of pollen grains as a target for introduction of genes with special emphasis on recent developments.
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Affiliation(s)
- Susan Eapen
- Plant Biotechnology and Secondary products Section, Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Mumbai, 400085 India
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Tianzi C, Shenjie W, Jun Z, Wangzhen G, Tianzhen Z. Pistil drip following pollination: a simple in planta Agrobacterium-mediated transformation in cotton. Biotechnol Lett 2009; 32:547-55. [PMID: 19953299 DOI: 10.1007/s10529-009-0179-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2009] [Revised: 11/10/2009] [Accepted: 11/16/2009] [Indexed: 10/20/2022]
Abstract
Transgenic cotton plants were developed by pistil drip inoculation in a solution containing Agrobacterium carrying a gene for resistance to the herbicide Basta (bar), 10% (w/v) sucrose, 0.05% (v/v) Silwet L-77 and 40 mg acetosyringone l(-1). Pistil drip during 17:00-19:00 on the first day of flowering resulted in 0.07-0.17% Basta-resistant plants/number of viable seeds generated, and stigma excision prior to pistil drip during this time period gave rise to a transformation efficiency of 0.46-0.93%, in contrast with 0.04-0.06% generated from pistil drip during 9:00-11:00 on the second day of flowering. PCR and Southern blot analysis confirmed the integration of the bar gene into the cotton genome, and a T1 and T2 generation herbicide resistance test consistently revealed expression and stable heritability of the bar gene in the two generations.
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Affiliation(s)
- Chen Tianzi
- National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
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11
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Zhou B, Zhao X, Kawabata S, Li Y. Transient expression of a foreign gene by direct incorporation of DNA into intact plant tissue through vacuum infiltration. Biotechnol Lett 2009; 31:1811-5. [PMID: 19618274 DOI: 10.1007/s10529-009-0080-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2009] [Revised: 06/24/2009] [Accepted: 06/30/2009] [Indexed: 11/28/2022]
Abstract
We previously established a method to induce transient expression of foreign genes in intact plant tissue to detect the subcellular localization of proteins. Here, we have inserted a putative bZIP protein HY5 gene (SeqID: EU386772), isolated from the seedlings of turnips Brassica rapa L. subsp. rapa 'Tsuda,' and a receptor-like kinase gene AtRLK (SeqID: AY531551.1), isolated from Arabidopsis, into the plasmid pA7-GFP. We accomplished the direct incorporation of DNA into onion epidermal tissue by vacuum infiltration. By detecting GFP, which was fused with AtRLK or putative BrHY5, we determined that BrHY5 is located in the nucleus and AtRLK is located in the plasma membrane. This approach can be thus used to study the transient expression of foreign genes in intact tissue.
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Affiliation(s)
- Bo Zhou
- College of Life Science, Northeast Forestry University, 150040, Harbin, China
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Rao AQ, Bakhsh A, Kiani S, Shahzad K, Shahid AA, Husnain T, Riazuddin S. The myth of plant transformation. Biotechnol Adv 2009; 27:753-763. [PMID: 19508888 DOI: 10.1016/j.biotechadv.2009.04.028] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2008] [Revised: 02/09/2009] [Accepted: 04/03/2009] [Indexed: 10/20/2022]
Abstract
Technology development is innovative to many aspects of basic and applied plant transgenic science. Plant genetic engineering has opened new avenues to modify crops, and provided new solutions to solve specific needs. Development of procedures in cell biology to regenerate plants from single cells or organized tissue, and the discovery of novel techniques to transfer genes to plant cells provided the prerequisite for the practical use of genetic engineering in crop modification and improvement. Plant transformation technology has become an adaptable platform for cultivar improvement as well as for studying gene function in plants. This success represents the climax of years of efforts in tissue culture improvement, in transformation techniques and in genetic engineering. Plant transformation vectors and methodologies have been improved to increase the efficiency of transformation and to achieve stable expression of transgenes in plants. This review provides a comprehensive discussion of important issues related to plant transformation as well as advances made in transformation techniques during three decades.
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Affiliation(s)
- Abdul Qayyum Rao
- National Centre of Excellence in Molecular Biology, 87-West Canal Bank Road Thokar Niaz Baig, Lahore, 53700, Pakistan.
| | - Allah Bakhsh
- National Centre of Excellence in Molecular Biology, 87-West Canal Bank Road Thokar Niaz Baig, Lahore, 53700, Pakistan
| | - Sarfraz Kiani
- National Centre of Excellence in Molecular Biology, 87-West Canal Bank Road Thokar Niaz Baig, Lahore, 53700, Pakistan
| | - Kamran Shahzad
- National Centre of Excellence in Molecular Biology, 87-West Canal Bank Road Thokar Niaz Baig, Lahore, 53700, Pakistan
| | - Ahmad Ali Shahid
- National Centre of Excellence in Molecular Biology, 87-West Canal Bank Road Thokar Niaz Baig, Lahore, 53700, Pakistan
| | - Tayyab Husnain
- National Centre of Excellence in Molecular Biology, 87-West Canal Bank Road Thokar Niaz Baig, Lahore, 53700, Pakistan
| | - S Riazuddin
- National Centre of Excellence in Molecular Biology, 87-West Canal Bank Road Thokar Niaz Baig, Lahore, 53700, Pakistan
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Wang J, Li Y, Liang C. Recovery of transgenic plants by pollen-mediated transformation in Brassica juncea. Transgenic Res 2008; 17:417-24. [PMID: 17701081 DOI: 10.1007/s11248-007-9115-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2005] [Accepted: 06/10/2007] [Indexed: 10/23/2022]
Abstract
The aroA-M1 encoding the mutant of 5-enolpyruvyl-shikimate-3-phosphate synthase (EPSPS) was introduced into the Brassica juncea genome by sonication-assisted, pollen-mediated transformation. The plasmid DNA and collected pollen grains were mixed in 0.3 mol/L sucrose solution and treated with mild ultrasonication. The treated pollen was then pollinated onto the oilseed stigmas after the stamens were removed artificially. Putative transgenic plants were obtained by screening germinating seeds on a medium containing glyphosate. Southern blot analysis of glyphosate-resistant plants indicated that the aroA-M1 gene had been integrated into the oilseed genome. Western blot analysis further confirmed that the EPSPS coded by aroA-M1 gene was expressed in transgenic plants. The transgenic plants exhibited increased resistance to glyphosate compared to untransformed plants. Some of those transgenic plants had considerably high resistance to glyphosate. The genetic analysis of T1 progeny further confirmed that the inheritance of the introduced genes followed the Mendelian rules. The results indicated that foreign genes can be transferred by pollen-mediated transformation combined with mild ultrasonication.
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Affiliation(s)
- Jingxue Wang
- School of Life Science and Technology, Shanxi University, Taiyuan 030006, P.R. China.
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Kim SS, Shin DI, Park HS. Transient β-glucuronidase expression in lily (Lilium longflorum L.) pollen via wounding-assisted Agrobacterium-mediated transformation. Biotechnol Lett 2007; 29:965-9. [PMID: 17310322 DOI: 10.1007/s10529-007-9326-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2006] [Revised: 01/10/2007] [Accepted: 01/15/2007] [Indexed: 11/29/2022]
Abstract
A pollen-based transient expression system has been developed. Lily pollen grains, wounded by vigorous shaking in the presence of aluminum oxide particles, were transformed by infiltration with Agrobacterium tumefaciens LBA4404 cells harboring the beta-glucuronidase (GUS) gene construct, pBI121. In histochemical and fluorometric GUS analysis, the wounding processes allowed efficient transformation and, in cDNA blot hybridization, GUS mRNA synthesis was clearly detected. Lily pollen with appropriate wounds, therefore, can be used conveniently for the rapid production of recombinant proteins.
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Affiliation(s)
- Su-Sung Kim
- Department of Biotechnology, Catholic University of Daegu, Kyungsan, Kyungbuk, Korea
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Dinkins RD, Reddy MSS, Meurer CA, Redmond CT, Collins GB. Recent Advances in Soybean Transformation. FOCUS ON BIOTECHNOLOGY 2003. [DOI: 10.1007/978-94-017-0139-6_1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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Yang Y, Li R, Qi M. In vivo analysis of plant promoters and transcription factors by agroinfiltration of tobacco leaves. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2000; 22:543-551. [PMID: 10886774 DOI: 10.5352/jls.2004.14.6.1018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
A convenient, Agrobacterium-mediated transient expression assay has been evaluated for rapid analysis of plant promoters and transcription factors in vivo. By simple infiltration of Agrobacterium cells carrying appropriate plasmid constructs into tobacco leaves in planta, reproducible expression assays could be conducted in as little as 2-3 days without using expensive equipment (e.g. biolistic gun or electroporation apparatus) or complicated procedures (e.g. preparation of protoplasts). Biotic and abiotic treatments could be applied to the intact plant to examine their influence on promoter activity and gene expression. Using this method, we have tested the stress-responsive as-1 and heat shock elements, yeast GAL4 transactivation system, two promoters of pathogenesis-related (PR) genes as well as a heat shock promoter. Through deletion analyses of tobacco PR1a promoter and a novel myb1 promoter, we have also successfully identified the cis-regulatory regions in these promoters that are responsive to salicylic acid treatment or tobacco mosaic virus infection. Together, our results demonstrate that Agrobacterium-mediated transient expression is a simple and efficient method for in vivo assays of plant promoters and transcription factors.
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Affiliation(s)
- Y Yang
- Department of Plant Pathology, University of Arkansas, Fayetteville 72701, USA.
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