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Fan X, Sun H. Exploring Agrobacterium-mediated genetic transformation methods and its applications in Lilium. PLANT METHODS 2024; 20:120. [PMID: 39123215 PMCID: PMC11313100 DOI: 10.1186/s13007-024-01246-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2024] [Accepted: 07/27/2024] [Indexed: 08/12/2024]
Abstract
As a typical bulb flower, lily is widely cultivated worldwide because of its high ornamental, medicinal and edible value. Although breeding efforts evolved over the last 10000 years, there are still many problems in the face of increasing consumer demand. The approach of biotechnological methods would help to solve this problem and incorporate traits impossible by conventional breeding. Target traits are dormancy, development, color, floral fragrance and resistances against various biotic and abiotic stresses, so as to improve the quality of bulbs and cut flowers in planting, cultivation, postharvest, plant protection and marketing. Genetic transformation technology is an important method for varietal improvement and has become the foundation and core of plant functional genomics research, greatly assisting various plant improvement programs. However, achieving stable and efficient genetic transformation of lily has been difficult worldwide. Many gene function verification studies depend on the use of model plants, which greatly limits the pace of directed breeding and germplasm improvement in lily. Although significant progress has been made in the development and optimization of genetic transformation systems, shortcomings remain. Agrobacterium-mediated genetic transformation has been widely used in lily. However, severe genotypic dependence is the main bottleneck limiting the genetic transformation of lily. This review will summarizes the research progress in the genetic transformation of lily over the past 30 years to generate the material including a section how genome engineering using stable genetic transformation system, and give an overview about recent and future applications of lily transformation. The information provided in this paper includes ideas for optimizing and improving the efficiency of existing genetic transformation methods and for innovation, provides technical support for mining and identifying regulatory genes for key traits, and lays a foundation for genetic improvement and innovative germplasm development in lily.
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Affiliation(s)
- Xinyue Fan
- Key Laboratory of Protected Horticulture of Education Ministry, College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China
| | - Hongmei Sun
- Key Laboratory of Protected Horticulture of Education Ministry, College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China.
- National and Local Joint Engineering Research Center of Northern Horticultural Facilities Design and Application Technology, Shenyang, 110866, China.
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Fu Y, Shu L, Li H, Zhang X, Liu X, Ou Z, Liang X, Qi X, Yang L. Establishment of Highly Efficient Plant Regeneration, Callus Transformation and Analysis of Botrytis cinerea-Responsive PR Promoters in Lilium brownii var. viridulum. PLANTS (BASEL, SWITZERLAND) 2023; 12:1992. [PMID: 37653909 PMCID: PMC10221712 DOI: 10.3390/plants12101992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 05/06/2023] [Accepted: 05/11/2023] [Indexed: 09/02/2023]
Abstract
Lilium brownii var. viridulum, commonly called Longya lily, is a well-known flower and vegetable plant in China that has poor tolerance to Botrytis fungal disease. The molecularimprovement has mainly been restricted to an efficient regeneration and transformation system. In this study, the highly efficient regeneration of Longya lily was established through the optimization of embryogenic callus, adventitious shoot and rooting induction. The major factors influencing transformation (antibiotics, Agrobacterium concentration, infection time, suspension solution and coculture medium) were examined. The expression responses of PR promoters (ZmPR4 and BjCHI1) to B. cinerea were assessed in transgenic calli. The results showed that Murashige and Skoog (MS) medium with 1.0 mg·L-1 picloram (PIC) and 0.2 mg·L-1 1-naphthaleneacetic acid (NAA) under light conditions and MS with 0.5 mg·L-1 6-benzylaminopurine (6-BA) and 1.0 mg·L-1 NAA under darkness were optimal for embryogenic callus induction (64.67% rate) and proliferation (3.96 coefficient). Callus inoculation into MS containing 2.0 mg·L-1 thidiazuron (TDZ), 0.4 mg·L-1 NAA, 1.0 mg·L-1 TDZ and 0.5 mg·L-1 NAA led to shooting induction (92.22 of rate) and proliferation (3.28 of coefficient) promotion, respectively. The rooting rate reached 99.00% on MS with 0.3 mg·L-1 NAA. Moreover, a transformation rate of 65.56% was achieved by soaking the callus in Agrobacterium at an OD600 of 0.4 for 10 min in modified MS without NH4NO3 as the suspension solution and coculture medium before selecting 75 mg·L-1 hygromycin and 300 mg·L-1 cefotaxime. Only the BjCHI1 promoter was obviously expressed in transgenic calli. These results could facilitate the generation of Longya lily transgenic plants with improved B. cinerea resistance.
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Affiliation(s)
- Yongyao Fu
- School of Advanced Agriculture and Bioengineering, Yangtze Normal University, Chongqing 408100, China
- School of Life Sciences, Yan’an University, Yan’an 716000, China
| | - Liling Shu
- School of Advanced Agriculture and Bioengineering, Yangtze Normal University, Chongqing 408100, China
| | - Hanyi Li
- School of Advanced Agriculture and Bioengineering, Yangtze Normal University, Chongqing 408100, China
| | - Xingming Zhang
- School of Advanced Agriculture and Bioengineering, Yangtze Normal University, Chongqing 408100, China
| | - Xuan Liu
- College of Biology and Food Engineering, Chongqing Three Gorges University, Chongqing 404020, China
| | - Zhengying Ou
- School of Advanced Agriculture and Bioengineering, Yangtze Normal University, Chongqing 408100, China
| | - Xiaomeng Liang
- School of Life Sciences, Yan’an University, Yan’an 716000, China
| | - Xiangying Qi
- School of Life Sciences, Yan’an University, Yan’an 716000, China
| | - Liping Yang
- School of Advanced Agriculture and Bioengineering, Yangtze Normal University, Chongqing 408100, China
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Nishiguchi M, Ali ME, Kaya T, Kobayashi K. Plant virus disease control by vaccination and transgenic approaches: Current status and perspective. PLANT RNA VIRUSES 2023:373-424. [DOI: 10.1016/b978-0-323-95339-9.00028-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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Parvathi MS, Antony PD, Kutty MS. Multiple Stressors in Vegetable Production: Insights for Trait-Based Crop Improvement in Cucurbits. FRONTIERS IN PLANT SCIENCE 2022; 13:861637. [PMID: 35592574 PMCID: PMC9111534 DOI: 10.3389/fpls.2022.861637] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 03/14/2022] [Indexed: 06/15/2023]
Abstract
Vegetable production is a key determinant of contribution from the agricultural sector toward national Gross Domestic Product in a country like India, the second largest producer of fresh vegetables in the world. This calls for a careful scrutiny of the threats to vegetable farming in the event of climate extremes, environmental degradation and incidence of plant pests/diseases. Cucurbits are a vast group of vegetables grown almost throughout the world, which contribute to the daily diet on a global scale. Increasing food supply to cater to the ever-increasing world population, calls for intensive, off-season and year-round cultivation of cucurbits. Current situation predisposes these crops to a multitude of stressors, often simultaneously, under field conditions. This scenario warrants a systematic understanding of the different stress specific traits/mechanisms/pathways and their crosstalk that have been examined in cucurbits and identification of gaps and formulation of perspectives on prospective research directions. The careful dissection of plant responses under specific production environments will help in trait identification for genotype selection, germplasm screens to identify superior donors or for direct genetic manipulation by modern tools for crop improvement. Cucurbits exhibit a wide range of acclimatory responses to both biotic and abiotic stresses, among which a few like morphological characters like waxiness of cuticle; primary and secondary metabolic adjustments; membrane thermostability, osmoregulation and, protein and reactive oxygen species homeostasis and turnover contributing to cellular tolerance, appear to be common and involved in cross talk under combinatorial stress exposures. This is assumed to have profound influence in triggering system level acclimation responses that safeguard growth and metabolism. The possible strategies attempted such as grafting initiatives, molecular breeding, novel genetic manipulation avenues like gene editing and ameliorative stress mitigation approaches, have paved way to unravel the prospects for combined stress tolerance. The advent of next generation sequencing technologies and big data management of the omics output generated have added to the mettle of such emanated concepts and ideas. In this review, we attempt to compile the progress made in deciphering the biotic and abiotic stress responses of cucurbits and their associated traits, both individually and in combination.
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Affiliation(s)
- M. S. Parvathi
- Department of Plant Physiology, College of Agriculture Vellanikkara, Kerala Agricultural University, Thrissur, India
| | - P. Deepthy Antony
- Centre for Intellectual Property Rights, Technology Management and Trade, College of Agriculture Vellanikkara, Kerala Agricultural University, Thrissur, India
| | - M. Sangeeta Kutty
- Department of Vegetable Science, College of Agriculture Vellanikkara, Kerala Agricultural University, Thrissur, India
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Boutigny AL, Dohin N, Pornin D, Rolland M. Overview and detectability of the genetic modifications in ornamental plants. HORTICULTURE RESEARCH 2020; 7:11. [PMID: 32025314 PMCID: PMC6994484 DOI: 10.1038/s41438-019-0232-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 11/20/2019] [Accepted: 12/11/2019] [Indexed: 05/04/2023]
Abstract
The market of ornamental plants is extremely competitive, and for many species genetic engineering can be used to introduce original traits of high commercial interest. However, very few genetically modified (GM) ornamental varieties have reached the market so far. Indeed, the authorization process required for such plants has a strong impact on the profitability of the development of such products. Considering the numerous scientific studies using genetic modification on ornamental species of interest, a lot of transformed material has been produced, could be of commercial interest and could therefore be unintentionally released on the market. The unintentional use of GM petunia in breeding programs has indeed recently been observed. This review lists scientific publications using GM ornamental plants and tries to identify whether these plants could be detected by molecular biology tools commonly used by control laboratories.
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Affiliation(s)
- Anne-Laure Boutigny
- Anses, Plant Health Laboratory, Bacteriology Virology GMO Unit, 7 rue Jean Dixméras, 49044 Angers, cedex 01, France
| | - Nicolas Dohin
- Anses, Plant Health Laboratory, Bacteriology Virology GMO Unit, 7 rue Jean Dixméras, 49044 Angers, cedex 01, France
| | - David Pornin
- Anses, Plant Health Laboratory, Bacteriology Virology GMO Unit, 7 rue Jean Dixméras, 49044 Angers, cedex 01, France
| | - Mathieu Rolland
- Anses, Plant Health Laboratory, Bacteriology Virology GMO Unit, 7 rue Jean Dixméras, 49044 Angers, cedex 01, France
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6
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Nobakht Vakili A, Bagheri H, Azadi P. Elimination of macro elements from inoculation and co-cultivation media enhances the efficiency of Agrobacterium-mediated transformation in Petunia. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2018; 24:703-710. [PMID: 30042624 PMCID: PMC6041229 DOI: 10.1007/s12298-018-0553-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Revised: 05/05/2018] [Accepted: 05/14/2018] [Indexed: 05/16/2023]
Abstract
In order to evaluate the effect of inoculation and co-cultivation media elements on transformation frequency in Petunia hybrida, modified MS media with different elements were tested on Alvan and Large Flower Alvan (LF Alvan), two local cultivars. Leaf explants of both cultivars were inoculated with Agrobacterium tumefaciens strain LBA4404 (pBI121) containing neomycin phosphotransferase (nptII) and an intron-containing β-glucuronidase (gus) genes. When medium lacking KH2PO4, NH4NO3, KNO3, and CaCl2 was used as inoculation and co-cultivation medium, a higher frequency of transformation for Alvan (22%) and LF Alvan (16%) was obtained. Kanamycin resistant plantlets were stained blue by GUS assay. Furthermore, polymerase chain reaction (PCR) analysis revealed the presence of both gus and nptII genes in all putative transformants. Finally, southern blot hybridization confirmed insertion of 1-4 copies of gus gene in transgenic plants.
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Affiliation(s)
- Aso Nobakht Vakili
- Department of Biotechnology, Faculty of Agriculture, Bu Ali-Sina University, Hamedan, 6517838695 Iran
| | - Hedayat Bagheri
- Department of Plant Biotechnology, Faculty of Agriculture, Bu Ali-Sina University, Hamedan, 6517838695 Iran
| | - Pejman Azadi
- Department of Genetic Engineering, Agricultural Biotechnology Research Institute of Iran (ABRII), Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
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7
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Genetically Transformed Root-Based Culture Technology in Medicinal Plant Cosmos bipinnatus. Jundishapur J Nat Pharm Prod 2018. [DOI: 10.5812/jjnpp.67182] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
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Parmar N, Singh KH, Sharma D, Singh L, Kumar P, Nanjundan J, Khan YJ, Chauhan DK, Thakur AK. Genetic engineering strategies for biotic and abiotic stress tolerance and quality enhancement in horticultural crops: a comprehensive review. 3 Biotech 2017; 7:239. [PMID: 28702937 PMCID: PMC5507805 DOI: 10.1007/s13205-017-0870-y] [Citation(s) in RCA: 84] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 07/02/2017] [Indexed: 11/28/2022] Open
Abstract
Genetic engineering technique offers myriads of applications in improvement of horticultural crops for biotic and abiotic stress tolerance, and produce quality enhancement. During last two decades, a large number of transgenic horticultural crops has been developed and more are underway. A number of genes including natural and synthetic Cry genes, protease inhibitors, trypsin inhibitors and cystatin genes have been used to incorporate insect and nematode resistance. For providing protection against fungal and bacterial diseases, various genes like chitinase, glucanase, osmotin, defensin and pathogenesis-related genes are being transferred to many horticultural crops world over. RNAi technique has been found quite successful in inducing virus resistance in horticultural crops in addition to coat protein genes. Abiotic stresses such as drought, heat and salinity adversely affect production and productivity of horticultural crops and a number of genes encoding for biosynthesis of stress protecting compounds including mannitol, glycine betaine and heat shock proteins have been employed for abiotic stress tolerance besides various transcription factors like DREB1, MAPK, WRKY, etc. Antisense gene and RNAi technologies have revolutionized the pace of improvement of horticultural crops, particularly ornamentals for color modification, increasing shelf-life and reducing post-harvest losses. Precise genome editing tools, particularly CRISPR/Cas9, have been efficiently applied in tomato, petunia, citrus, grape, potato and apple for gene mutation, repression, activation and epigenome editing. This review provides comprehensive overview to draw the attention of researchers for better understanding of genetic engineering advancements in imparting biotic and abiotic stress tolerance as well as on improving various traits related to quality, texture, plant architecture modification, increasing shelf-life, etc. in different horticultural crops.
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Affiliation(s)
- Nehanjali Parmar
- Dr. Y.S. Parmar University of Horticulture and Forestry, Nauni, Solan, HP, 173 230, India.
| | | | - Deepika Sharma
- ICAR-Directorate of Rapeseed-Mustard Research, Bharatpur, Rajasthan, 321 303, India
| | - Lal Singh
- ICAR-Directorate of Rapeseed-Mustard Research, Bharatpur, Rajasthan, 321 303, India
| | - Pankaj Kumar
- National Institute of Plant Genome Research, New Delhi, 110 067, India
| | - J Nanjundan
- ICAR-Indian Agricultural Research Institute, Regional Station, Wellington, The Nilgiris, Tamilnadu, 643 231, India
| | - Yasin Jeshima Khan
- Division of Genomic Resources, ICAR-National Bureau of Plant Genetic Resources, PUSA Campus, New Delhi, 110 012, India
| | - Devendra Kumar Chauhan
- Division of Plant Breeding and Genetics, Sher-e-Kashmir University of Agricultural Sciences and Technology of Jammu, Chatha, Jammu, J&K, 180 009, India
| | - Ajay Kumar Thakur
- ICAR-Directorate of Rapeseed-Mustard Research, Bharatpur, Rajasthan, 321 303, India
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Sun D, Zhang X, Li S, Jiang CZ, Zhang Y, Niu L. LrABCF1, a GCN-type ATP-binding cassette transporter from Lilium regale, is involved in defense responses against viral and fungal pathogens. PLANTA 2016; 244:1185-1199. [PMID: 27485641 DOI: 10.1007/s00425-016-2576-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Accepted: 07/27/2016] [Indexed: 05/02/2023]
Abstract
The L. regale ATP-binding cassette transporter gene, LrABCF1 belonging to GCN subfamily, functions as a positive regulator of plant defense against Cucumber mosaic virus, Tobacco rattle virus , and Botrytis cinerea in petunia. ATP-binding cassette (ABC) transporters are essential for membrane translocation in diverse biological processes, such as plant development and defense response. Here, a general control non-derepressible (GCN)-type ABC transporter gene, designated LrABCF1, was identified from Cucumber mosaic virus (CMV)-induced cDNA library of L. regale. LrABCF1 was up-regulated upon inoculation with CMV and Lily mottle virus (LMoV). Salicylic acid (SA) and ethylene (ET) application and treatments with abiotic stresses such as cold, high salinity, and wounding increased the transcript abundances of LrABCF1. Constitutive overexpression of LrABCF1 in petunia (Petunia × hybrida) resulted in an impairment of plant growth and development. LrABCF1 overexpression conferred reduced susceptibility to CMV, Tobacco rattle virus (TRV), and B. cinerea infection in transgenic petunia plants, accompanying by elevated transcripts of PhGCN2 and a few defense-related genes in SA-signaling pathway. Our data indicate that LrABCF1 positively modulates viral and fungal resistance.
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Affiliation(s)
- Daoyang Sun
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China
| | - Xinguo Zhang
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China
| | - Shaohua Li
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China
| | - Cai-Zhong Jiang
- Crops Pathology and Genetic Research Unit, United States Department of Agriculture, Agricultural Research Service, Davis, CA, 95616, USA.
- Department of Plant Sciences, University of California at Davis, Davis, CA, 95616, USA.
| | - Yanlong Zhang
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China.
| | - Lixin Niu
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling, Shaanxi, 712100, People's Republic of China.
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Bakhshaie M, Khosravi S, Azadi P, Bagheri H, van Tuyl JM. Biotechnological advances in Lilium. PLANT CELL REPORTS 2016; 35:1799-826. [PMID: 27318470 DOI: 10.1007/s00299-016-2017-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Accepted: 06/10/2016] [Indexed: 05/03/2023]
Abstract
Modern powerful techniques in plant biotechnology have been developed in lilies (Lilium spp., Liliaceae) to propagate, improve and make new phenotypes. Reliable in vitro culture methods are available to multiply lilies rapidly and shorten breeding programs. Lilium is also an ideal model plant to study in vitro pollination and embryo rescue methods. Although lilies are recalcitrant to genetic manipulation, superior genotypes are developed with improved flower colour and form, disease resistance and year round forcing ability. Different DNA molecular markers have been developed for rapid indirect selection, genetic diversity evaluation, mutation detection and construction of Lilium linkage map. Some disease resistance-QTLs are already mapped on the Lilium linkage map. This review presents latest information on in vitro propagation, genetic engineering and molecular advances made in lily.
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Affiliation(s)
- Mehdi Bakhshaie
- Department of Horticultural Sciences, Faculty of Agriculture, University of Tehran, P.O. Box 31587-11167, Karaj, Iran.
| | - Solmaz Khosravi
- Department of Genetic Engineering, Agricultural Biotechnology Research Institute of Iran (ABRII), Agricultural Research, Education and Extension Organization (AREEO), P.O. Box 31535-1897, Karaj, Iran
| | - Pejman Azadi
- Department of Genetic Engineering, Agricultural Biotechnology Research Institute of Iran (ABRII), Agricultural Research, Education and Extension Organization (AREEO), P.O. Box 31535-1897, Karaj, Iran.
| | - Hedayat Bagheri
- Department of Plant Biotechnology, Bu Ali Sina University, 65174, Hamedan, Iran
| | - Jaap M van Tuyl
- Wageningen UR Plant Breeding, Wageningen University and Research Centre, Wageningen, The Netherlands
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Azadi P, Bagheri H, Nalousi AM, Nazari F, Chandler SF. Current status and biotechnological advances in genetic engineering of ornamental plants. Biotechnol Adv 2016; 34:1073-1090. [PMID: 27396521 DOI: 10.1016/j.biotechadv.2016.06.006] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2016] [Revised: 06/22/2016] [Accepted: 06/28/2016] [Indexed: 01/15/2023]
Abstract
Cut flower markets are developing in many countries as the international demand for cut flowers is rapidly growing. Developing new varieties with modified characteristics is an important aim in floriculture. Production of transgenic ornamental plants can shorten the time required in the conventional breeding of a cultivar. Biotechnology tools in combination with conventional breeding methods have been used by cut flower breeders to change flower color, plant architecture, post-harvest traits, and disease resistance. In this review, we describe advances in genetic engineering that have led to the development of new cut flower varieties.
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Affiliation(s)
- Pejman Azadi
- Department of Genetic Engineering, Agricultural Biotechnology Research Institute of Iran (ABRII), Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran.
| | - Hedayat Bagheri
- Department of Plant Biotechnology, Faculty of Agriculture Science, Buali Sina University, Hamedan, Iran
| | - Ayoub Molaahmad Nalousi
- Department of Horticultural Science, Faculty of Agriculture Science, University of Guilan, Rasht, Iran
| | - Farzad Nazari
- Department of Horticultural Science, College of Agriculture, University of Kurdistan, Sanandaj, Iran
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Abstract
Transgenic resistance to plant viruses is an important technology for control of plant virus infection, which has been demonstrated for many model systems, as well as for the most important plant viruses, in terms of the costs of crop losses to disease, and also for many other plant viruses infecting various fruits and vegetables. Different approaches have been used over the last 28 years to confer resistance, to ascertain whether particular genes or RNAs are more efficient at generating resistance, and to take advantage of advances in the biology of RNA interference to generate more efficient and environmentally safer, novel "resistance genes." The approaches used have been based on expression of various viral proteins (mostly capsid protein but also replicase proteins, movement proteins, and to a much lesser extent, other viral proteins), RNAs [sense RNAs (translatable or not), antisense RNAs, satellite RNAs, defective-interfering RNAs, hairpin RNAs, and artificial microRNAs], nonviral genes (nucleases, antiviral inhibitors, and plantibodies), and host-derived resistance genes (dominant resistance genes and recessive resistance genes), and various factors involved in host defense responses. This review examines the above range of approaches used, the viruses that were tested, and the host species that have been examined for resistance, in many cases describing differences in results that were obtained for various systems developed in the last 20 years. We hope this compilation of experiences will aid those who are seeking to use this technology to provide resistance in yet other crops, where nature has not provided such.
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Affiliation(s)
| | - Peter Palukaitis
- Department of Horticultural Sciences, Seoul Women's University, Seoul, Republic of Korea.
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Vieira P, Wantoch S, Lilley CJ, Chitwood DJ, Atkinson HJ, Kamo K. Expression of a cystatin transgene can confer resistance to root lesion nematodes in Lilium longiflorum cv. 'Nellie White'. Transgenic Res 2015; 24:421-32. [PMID: 25398618 DOI: 10.1007/s11248-014-9848-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Accepted: 11/04/2014] [Indexed: 10/24/2022]
Abstract
Lilium longiflorum cv. 'Nellie White' assumes a great economic importance as cut flowers, being one of the most valuable species (annual pot plants value above $20,000,000) in terms of wholesales in the US. The root lesion nematode Pratylenchus penetrans (RLN) constitutes one of the main pests for lily producers due to the significant root damage it causes. Our efforts have focused on the generation of soybean hairy roots (as a transient test model) and stable transgenic lilies overexpressing a modified rice cystatin (Oc-IΔD86) transgene and challenged with root lesion nematodes. Lily transformation was achieved by gene gun co-bombardment using both a pBluescript-based vector containing the cystatin gene and pDM307 that contains a bar gene for phosphinothricin selection. Both soybean hairy roots and lilies overexpressing the OcIΔD86 transgene exhibited enhanced resistance to RLN infection by means of nematode reduction up to 75 ± 5% on the total number of nematodes. In addition, lily plants overexpressing OcIΔD86 displayed an increase of plant mass and better growth performance in comparison to wild-type plants, thereby demonstrating an alternative strategy for increasing the yield and reducing nematode damage to this important floral crop.
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Affiliation(s)
- Paulo Vieira
- Floral and Nursery Plants Research Unit, U.S. National Arboretum, U.S. Department of Agriculture (USDA) ARS, BARC West, 10300 Baltimore Avenue, Building 010A Room 126, Beltsville, MD, 20705-2350, USA,
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Galvez LC, Banerjee J, Pinar H, Mitra A. Engineered plant virus resistance. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2014; 228:11-25. [PMID: 25438782 DOI: 10.1016/j.plantsci.2014.07.006] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2014] [Revised: 07/16/2014] [Accepted: 07/18/2014] [Indexed: 06/04/2023]
Abstract
Virus diseases are among the key limiting factors that cause significant yield loss and continuously threaten crop production. Resistant cultivars coupled with pesticide application are commonly used to circumvent these threats. One of the limitations of the reliance on resistant cultivars is the inevitable breakdown of resistance due to the multitude of variable virus populations. Similarly, chemical applications to control virus transmitting insect vectors are costly to the farmers, cause adverse health and environmental consequences, and often result in the emergence of resistant vector strains. Thus, exploiting strategies that provide durable and broad-spectrum resistance over diverse environments are of paramount importance. The development of plant gene transfer systems has allowed for the introgression of alien genes into plant genomes for novel disease control strategies, thus providing a mechanism for broadening the genetic resources available to plant breeders. Genetic engineering offers various options for introducing transgenic virus resistance into crop plants to provide a wide range of resistance to viral pathogens. This review examines the current strategies of developing virus resistant transgenic plants.
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Affiliation(s)
- Leny C Galvez
- Department of Plant Pathology, University of Nebarska, Lincoln, NE 68583-0722, USA
| | - Joydeep Banerjee
- Department of Plant Pathology, University of Nebarska, Lincoln, NE 68583-0722, USA
| | - Hasan Pinar
- Department of Plant Pathology, University of Nebarska, Lincoln, NE 68583-0722, USA
| | - Amitava Mitra
- Department of Plant Pathology, University of Nebarska, Lincoln, NE 68583-0722, USA.
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Sharafi A, Sohi HH, Azadi P, Sharafi AA. Hairy root induction and plant regeneration of medicinal plant Dracocephalum kotschyi. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2014; 20:257-62. [PMID: 24757330 PMCID: PMC3988323 DOI: 10.1007/s12298-013-0217-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2013] [Revised: 11/13/2013] [Accepted: 12/23/2013] [Indexed: 05/22/2023]
Abstract
An efficient hairy root induction system for an important endangered medicinal plant, Dracocephalum kotschyi, was developed through Agrobacterium rhizogenes-mediated transformation by modifying the co-cultivation medium using five bacterial strains, A4, ATCC15834, LBA9402, MSU440, and A13 (MAFF-02-10266). A drastic increase in transformation frequency was observed when a Murashige and Skoog medium lacking NH4NO3 KH2PO4, KNO3 and CaCl2 was used, resulting in hairy root induction frequencies of 52.3 %, 69.6 %, 48.6 %, 89.0 %, and 80.0 % by A4, A13, LBA9402, MSU440, and ATCC15834 strains, respectively. For shoot induction, hairy roots and unorganized tumors induced by strain ATCC15834 were placed on an MS media supplemented with 0.1, 0.25, 0.5, and 1 mg/l BA plus 0.1 mg/l NAA. The high frequency of shoot regeneration and number of shoot were obtained in the medium containing 0.25 mg/l BA and 0.1 mg/l NAA. Root induction occurred from the base of regenerated shoots on the MS medium supplemented with 0.5 mg/l IBA after 10 days.
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Affiliation(s)
- Ali Sharafi
- />Pharmacognosy and Pharmaceutical Biotechnology Department, Faculty of Pharmacy, Zanjan University of Medical Sciences, P.O.Box 45195-1338, Zanjan, Iran
| | - Haleh Hashemi Sohi
- />National Institute of Genetic Engineering and Biotechnology (NIGEB), Shahrak-e Pajoohesh, km 15, Tehran - Karaj Highway, Tehran, Iran
| | - Pejman Azadi
- />Tissue Culture and Genetic Engineering Department, Agricultural Biotechnology Research Institute of Iran (ABRII), P. O. Box 31535-1897, Karaj, Iran
| | - Ata Allah Sharafi
- />Novin Giti Gene Biotechnology, Co., Biotechnology Incubator Center of National Institute of Genetic Engineering and Biotechnology (NIGEB), P. O. Box:1417863171, Tehran, Iran
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Ntui VO, Kynet K, Khan RS, Ohara M, Goto Y, Watanabe M, Fukami M, Nakamura I, Mii M. Transgenic tobacco lines expressing defective CMV replicase-derived dsRNA are resistant to CMV-O and CMV-Y. Mol Biotechnol 2014; 56:50-63. [PMID: 23820979 DOI: 10.1007/s12033-013-9681-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Cucumber mosaic virus (CMV) is a tripartite, positive sense RNA virus causing infections and yield losses to many plant species. Here, we generated a construct containing inverted repeat of 1,793 bp fragment of defective CMV replicase gene derived from RNA2 of cucumber mosaic virus strain O (CMV-O). The replicase gene was modified by deleting a 9 bp region between nucleotides 1909-1918. This caused a deletion in the active centre motif of polymerases, producing defective translated product 9 nucleotides shorter than the full length protein. The RNAi construct containing inverted repeat of the defective gene was used to produce transgenic tobacco lines expressing CMV-derived double-stranded RNA via Agrobacterium-mediated transformation. Of the four transgenic lines inoculated with CMV-O or CMV-Y in vitro and ex vivo, three lines (T1, T4 and T5) showed immunity to both strains of CMV as no symptoms were detected, whereas one line (T7) exhibited high resistance with mild symptoms limited to inoculation portions. No virus could be detected in uninoculated new leaves of the transgenic lines after RT-PCR and Dot-immunobinding assay analyses. Small interfering RNAs present in transgenic lines before and after virus challenge indicates that the resistance was acquired through RNA silencing.
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Affiliation(s)
- Valentine Otang Ntui
- Laboratory of Plant Cell Technology, Graduate School of Horticulture, Chiba University, 648 Matsudo, Matsudo, Chiba, 271-8510, Japan,
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Lin KY, Hsu YH, Chen HC, Lin NS. Transgenic resistance to Bamboo mosaic virus by expression of interfering satellite RNA. MOLECULAR PLANT PATHOLOGY 2013; 14:693-707. [PMID: 23675895 PMCID: PMC6638707 DOI: 10.1111/mpp.12040] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Plant genetic engineering has broadened the options for plant virus resistance and is mostly based on pathogen-derived resistance. Previously, we have shown that interfering satellite RNA (satRNA) of Bamboo mosaic virus (satBaMV) greatly reduces Bamboo mosaic virus (BaMV) accumulation and BaMV-induced symptoms in co-inoculated plants. Here, we generated a nonviral source of virus-resistant transgenic Nicotiana benthamiana and Arabidopsis thaliana by introducing interfering satBaMV. Asymptomatic transgenic N. benthamiana lines were highly resistant to BaMV virion and viral RNA infection, and the expression of the transgene BSL6 was higher in asymptomatic than mildly symptomatic lines. In addition, BaMV- and satBaMV-specific small RNAs were detectable only after BaMV challenge, and their levels were associated with genomic viral RNA or satRNA levels. By transcriptomic analysis, the salicylic acid (SA) signalling pathway was not induced in satBaMV transgenic A. thaliana in mock conditions, suggesting that two major antiviral mechanisms, RNA silencing and SA-mediated resistance, are not involved directly in transgenic satBaMV-mediated BaMV interference. In contrast, resistance is associated with the level of the interfering satBaMV transgene. We propose satBaMV-mediated BaMV interference in transgenic plants by competition for replicase with BaMV.
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Affiliation(s)
- Kuan-Yu Lin
- Institute of Biotechnology, National Cheng Kung University, Tainan, 701, Taiwan
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Transgenic accumulation of a defective cucumber mosaic virus (CMV) replicase derived double stranded RNA modulates plant defence against CMV strains O and Y in potato. Transgenic Res 2013; 22:1191-205. [PMID: 23748933 DOI: 10.1007/s11248-013-9721-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2013] [Accepted: 05/31/2013] [Indexed: 10/26/2022]
Abstract
Cucumber mosaic virus is an important plant pathogen with a broad host range encompassing many plant species. This study demonstrates the production of transgenic potato lines exhibiting complete resistance to cucumber mosaic virus strain O and Y by post transcriptional gene silencing. Two constructs were used, one, pEKH2IN2CMVai, contains inverted repeat of 1,138 bp fragment of a defective CMV replicase gene derived from RNA2 of cucumber mosaic virus strain O (CMV-O), while the other, TRV-based VIGS vector (pTRV2CMVai), contains the same fragment of the replicase gene, but without inverted repeat. These constructs were used to produce transgenic potato lines of cultivar 'Danshaku', a susceptible genotype to CMV. Transgenic lines derived from pEKH2IN2CMVai accumulated small interfering RNA (siRNA) before and after virus challenge, whereas those derived from pTRV2CMVai showed siRNA expression after virus challenge. When transgenic lines were challenged with CMV-O or CMV-Y, four lines exhibited complete (100%) resistance to both strains, whereas the other lines had high levels of resistance. Infectivity of CMV-O was lower than that of CMV-Y in the highly resistant plants. There were no significant differences with regard to resistance between plants derived from pEKH2IN2CMVai and those obtained from pTRV2CMVai. The presence of CMV-specific siRNA in the resistant phenotypes indicates that the resistance was acquired through RNA silencing.
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Metabolic engineering of morphinan alkaloids by over-expression of codeinone reductase in transgenic hairy roots of Papaver bracteatum, the Iranian poppy. Biotechnol Lett 2012; 35:445-53. [PMID: 23160738 DOI: 10.1007/s10529-012-1080-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2012] [Accepted: 10/31/2012] [Indexed: 10/27/2022]
Abstract
Papaver bracteatum has a high content of thebaine. It is used as an alternative to P. somniferum for the production of benzylisoquinoline alkaloid. Papaver bracteatum was genetically engineered to over-express codeinone reductase gene in hairy root cultures. Transcript level of the codeinone reductase gene in transgenic hairy root lines increased up to ten- and 24-fold in comparison with hairy roots without CodR over-expression and wild type roots, respectively. Codeine was produced at (0.04 % dry wt) and morphine was at (0.28 % dry wt) in the transgenic hairy root lines. Papaver bracteatum hairy roots expressing CodR gene thus have a high potential to produce morphinan alkaloids.
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