1
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Liu D, Ellison EE, Myers EA, Donahue LI, Xuan S, Swanson R, Qi S, Prichard LE, Starker CG, Voytas DF. Heritable gene editing in tomato through viral delivery of isopentenyl transferase and single-guide RNAs to latent axillary meristematic cells. Proc Natl Acad Sci U S A 2024; 121:e2406486121. [PMID: 39284063 PMCID: PMC11441571 DOI: 10.1073/pnas.2406486121] [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: 04/09/2024] [Accepted: 08/07/2024] [Indexed: 10/02/2024] Open
Abstract
Realizing the full potential of genome editing for crop improvement has been slow due to inefficient methods for reagent delivery and the reliance on tissue culture for creating gene-edited plants. RNA viral vectors offer an alternative approach for delivering gene engineering reagents and bypassing the tissue culture requirement. Viruses, however, are often excluded from the shoot apical meristem, making virus-mediated gene editing inefficient in some species. Here, we developed effective approaches for generating gene-edited shoots in Cas9-expressing transgenic tomato plants using RNA virus-mediated delivery of single-guide RNAs (sgRNAs). RNA viral vectors expressing sgRNAs were either delivered to leaves or sites near axillary meristems. Trimming of the apical and axillary meristems induced new shoots to form from edited somatic cells. To further encourage the induction of shoots, we used RNA viral vectors to deliver sgRNAs along with the cytokinin biosynthesis gene, isopentenyl transferase. Abundant, phenotypically normal, gene-edited shoots were induced per infected plant with single and multiplexed gene edits fixed in the germline. The use of viruses to deliver both gene editing reagents and developmental regulators overcomes the bottleneck in applying virus-induced gene editing to dicotyledonous crops such as tomato and reduces the dependency on tissue culture.
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Affiliation(s)
- Degao Liu
- Department of Genetics, Cell Biology and Development and Center for Precision Plant Genomics, University of Minnesota, St. Paul, MN 55108
| | - Evan E Ellison
- Department of Genetics, Cell Biology and Development and Center for Precision Plant Genomics, University of Minnesota, St. Paul, MN 55108
| | - Erik A Myers
- Department of Genetics, Cell Biology and Development and Center for Precision Plant Genomics, University of Minnesota, St. Paul, MN 55108
| | - Lilee I Donahue
- Department of Genetics, Cell Biology and Development and Center for Precision Plant Genomics, University of Minnesota, St. Paul, MN 55108
| | - Shuya Xuan
- Department of Genetics, Cell Biology and Development and Center for Precision Plant Genomics, University of Minnesota, St. Paul, MN 55108
| | - Ryan Swanson
- Department of Genetics, Cell Biology and Development and Center for Precision Plant Genomics, University of Minnesota, St. Paul, MN 55108
| | - Songyan Qi
- Department of Genetics, Cell Biology and Development and Center for Precision Plant Genomics, University of Minnesota, St. Paul, MN 55108
| | - Lynn E Prichard
- Department of Genetics, Cell Biology and Development and Center for Precision Plant Genomics, University of Minnesota, St. Paul, MN 55108
| | - Colby G Starker
- Department of Genetics, Cell Biology and Development and Center for Precision Plant Genomics, University of Minnesota, St. Paul, MN 55108
| | - Daniel F Voytas
- Department of Genetics, Cell Biology and Development and Center for Precision Plant Genomics, University of Minnesota, St. Paul, MN 55108
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2
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Huang W, Zhang Y, Xiao N, Zhao W, Shi Y, Fang R. Trans-complementation of the viral movement protein mediates efficient expression of large target genes via a tobacco mosaic virus vector. PLANT BIOTECHNOLOGY JOURNAL 2024. [PMID: 38923265 DOI: 10.1111/pbi.14418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 05/17/2024] [Accepted: 05/31/2024] [Indexed: 06/28/2024]
Abstract
The development of plant virus-based expression systems has expanded rapidly owing to their potential applications in gene functional and disease resistance research, and industrial production of pharmaceutical proteins. However, the low yield of certain proteins, especially high-molecular-mass proteins, restricts the production scale. In this study, we observed that the tobacco mosaic virus (TMV)-mediated expression of a foreign protein was correlated with the amount of the movement protein (MP) and developed a TMV-derived pAT-transMP vector system incorporating trans-complementation expression of MP. The system is capable of efficient expression of exogenous proteins, in particular those with a high molecular mass, and enables simultaneous expression of two target molecules. Furthermore, viral expression of competent CRISPR-Cas9 protein and construction of CRISPR-Cas9-mediated gene-editing system in a single pAT-transMP construct was achieved. The results demonstrated a novel role for TMV-MP in enhancing the accumulation of a foreign protein produced from the viral vector or a binary expression system. Further investigation of the mechanism underlying this role will be beneficial for optimization of plant viral vectors with broad applications.
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Affiliation(s)
- Weikuo Huang
- State Key Laboratory of Plant Genomics, Institute of Microbiology, Chinese Academy of Sciences, and National Plant Gene Research Center, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Yuman Zhang
- State Key Laboratory of Plant Genomics, Institute of Microbiology, Chinese Academy of Sciences, and National Plant Gene Research Center, Beijing, China
| | - Na Xiao
- State Key Laboratory of Plant Genomics, Institute of Microbiology, Chinese Academy of Sciences, and National Plant Gene Research Center, Beijing, China
| | - Wenhui Zhao
- College of Veterinary Medicine, and College of Agronomy, Shanxi Agricultural University, Jinzhong, China
| | - Ying Shi
- College of Veterinary Medicine, and College of Agronomy, Shanxi Agricultural University, Jinzhong, China
| | - Rongxiang Fang
- State Key Laboratory of Plant Genomics, Institute of Microbiology, Chinese Academy of Sciences, and National Plant Gene Research Center, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
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3
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Shen Y, Ye T, Li Z, Kimutai TH, Song H, Dong X, Wan J. Exploiting viral vectors to deliver genome editing reagents in plants. ABIOTECH 2024; 5:247-261. [PMID: 38974861 PMCID: PMC11224180 DOI: 10.1007/s42994-024-00147-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 03/02/2024] [Indexed: 07/09/2024]
Abstract
Genome editing holds great promise for the molecular breeding of plants, yet its application is hindered by the shortage of simple and effective means of delivering genome editing reagents into plants. Conventional plant transformation-based methods for delivery of genome editing reagents into plants often involve prolonged tissue culture, a labor-intensive and technically challenging process for many elite crop cultivars. In this review, we describe various virus-based methods that have been employed to deliver genome editing reagents, including components of the CRISPR/Cas machinery and donor DNA for precision editing in plants. We update the progress in these methods with recent successful examples of genome editing achieved through virus-based delivery in different plant species, highlight the advantages and limitations of these delivery approaches, and discuss the remaining challenges.
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Affiliation(s)
- Yilin Shen
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Jiangsu Collaborative Innovation Centre for Modern Crop Production, Jiangsu Engineering Research Center for Plant Genome Editing, Nanjing Agricultural University, Nanjing, 210095 China
- Zhongshan Biological Breeding Laboratory, Nanjing, 210014 China
| | - Tao Ye
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Jiangsu Collaborative Innovation Centre for Modern Crop Production, Jiangsu Engineering Research Center for Plant Genome Editing, Nanjing Agricultural University, Nanjing, 210095 China
- Zhongshan Biological Breeding Laboratory, Nanjing, 210014 China
| | - Zihan Li
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Jiangsu Collaborative Innovation Centre for Modern Crop Production, Jiangsu Engineering Research Center for Plant Genome Editing, Nanjing Agricultural University, Nanjing, 210095 China
- Zhongshan Biological Breeding Laboratory, Nanjing, 210014 China
| | - Torotwa Herman Kimutai
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Jiangsu Collaborative Innovation Centre for Modern Crop Production, Jiangsu Engineering Research Center for Plant Genome Editing, Nanjing Agricultural University, Nanjing, 210095 China
- Zhongshan Biological Breeding Laboratory, Nanjing, 210014 China
| | - Hao Song
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Jiangsu Collaborative Innovation Centre for Modern Crop Production, Jiangsu Engineering Research Center for Plant Genome Editing, Nanjing Agricultural University, Nanjing, 210095 China
- Zhongshan Biological Breeding Laboratory, Nanjing, 210014 China
| | - Xiaoou Dong
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Jiangsu Collaborative Innovation Centre for Modern Crop Production, Jiangsu Engineering Research Center for Plant Genome Editing, Nanjing Agricultural University, Nanjing, 210095 China
- Zhongshan Biological Breeding Laboratory, Nanjing, 210014 China
- Hainan Seed Industry Laboratory, Sanya, 572025 China
| | - Jianmin Wan
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Jiangsu Collaborative Innovation Centre for Modern Crop Production, Jiangsu Engineering Research Center for Plant Genome Editing, Nanjing Agricultural University, Nanjing, 210095 China
- Zhongshan Biological Breeding Laboratory, Nanjing, 210014 China
- Hainan Seed Industry Laboratory, Sanya, 572025 China
- State Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081 China
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4
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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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5
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He Y, Yang X, Xia X, Wang Y, Dong Y, Wu L, Jiang P, Zhang X, Jiang C, Ma H, Ma W, Liu C, Whitford R, Tucker MR, Zhang Z, Li G. A phase-separated protein hub modulates resistance to Fusarium head blight in wheat. Cell Host Microbe 2024; 32:710-726.e10. [PMID: 38657607 DOI: 10.1016/j.chom.2024.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 06/05/2023] [Accepted: 04/02/2024] [Indexed: 04/26/2024]
Abstract
Fusarium head blight (FHB) is a devastating wheat disease. Fhb1, the most widely applied genetic locus for FHB resistance, is conferred by TaHRC of an unknown mode of action. Here, we show that TaHRC alleles distinctly drive liquid-liquid phase separation (LLPS) within a proteinaceous complex, determining FHB susceptibility or resistance. TaHRC-S (susceptible) exhibits stronger LLPS ability than TaHRC-R (resistant), and this distinction is further intensified by fungal mycotoxin deoxynivalenol, leading to opposing FHB symptoms. TaHRC recruits a protein class with intrinsic LLPS potentials, referred to as an "HRC-containing hub." TaHRC-S drives condensation of hub components, while TaHRC-R comparatively suppresses hub condensate formation. The function of TaSR45a splicing factor, a hub member, depends on TaHRC-driven condensate state, which in turn differentially directs alternative splicing, switching between susceptibility and resistance to wheat FHB. These findings reveal a mechanism for FHB spread within a spike and shed light on the roles of complex condensates in controlling plant disease.
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Affiliation(s)
- Yi He
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; CIMMYT-JAAS Joint Center for Wheat Diseases, The Research Center of Wheat Scab, Zhongshan Biological Breeding Laboratory, Key Laboratory of Germplasm Innovation in Downstream of Huaihe River (Nanjing), Ministry of Agriculture and Rural Affairs, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Xiujuan Yang
- Waite Research Institute, School of Agriculture, Food and Wine, The University of Adelaide, Urrbrae, SA 5064, Australia
| | - Xiaobo Xia
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
| | - Yuhua Wang
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
| | - Yifan Dong
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
| | - Lei Wu
- CIMMYT-JAAS Joint Center for Wheat Diseases, The Research Center of Wheat Scab, Zhongshan Biological Breeding Laboratory, Key Laboratory of Germplasm Innovation in Downstream of Huaihe River (Nanjing), Ministry of Agriculture and Rural Affairs, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Peng Jiang
- CIMMYT-JAAS Joint Center for Wheat Diseases, The Research Center of Wheat Scab, Zhongshan Biological Breeding Laboratory, Key Laboratory of Germplasm Innovation in Downstream of Huaihe River (Nanjing), Ministry of Agriculture and Rural Affairs, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Xu Zhang
- CIMMYT-JAAS Joint Center for Wheat Diseases, The Research Center of Wheat Scab, Zhongshan Biological Breeding Laboratory, Key Laboratory of Germplasm Innovation in Downstream of Huaihe River (Nanjing), Ministry of Agriculture and Rural Affairs, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Cong Jiang
- College of Plant Protection, Northwest A&F University, Yangling 712100, China
| | - Hongxiang Ma
- College of Agriculture, Yangzhou University, Yangzhou 225009, China
| | - Wujun Ma
- College of Agronomy, Qingdao Agricultural University, Qingdao 266000, China
| | - Cong Liu
- Interdisciplinary Research Center on Biology and Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 201210, China
| | - Ryan Whitford
- Centre for Crop and Food Innovation (CCFI), State Agricultural Biotechnology Centre (SABC), Food Futures Institute, Murdoch University, Murdoch, WA 6150, Australia
| | - Matthew R Tucker
- Waite Research Institute, School of Agriculture, Food and Wine, The University of Adelaide, Urrbrae, SA 5064, Australia
| | - Zhengguang Zhang
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
| | - Gang Li
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China.
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6
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Nagalakshmi U, Meier N, Dinesh-Kumar SP. Virus-Induced Heritable Gene Editing in Plants. Methods Mol Biol 2024; 2724:273-288. [PMID: 37987913 DOI: 10.1007/978-1-0716-3485-1_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2023]
Abstract
Gene editing using clustered, regularly interspaced short palindromic repeats (CRISPR) and CRISPR-associated (Cas) nuclease is an excellent tool for assessing gene function in plants. However, delivery of CRISPR/Cas-editing components into plant cells is still a major bottleneck and requires tissue culture-based approaches and regeneration of plants. To overcome this limitation, several plant viral vectors have recently been engineered to deliver single-guide RNA (sgRNA) targets into SpCas9-expressing plants. Here, we describe an optimized, step-by-step protocol based on the tobacco rattle virus (TRV)-based vector system to deliver sgRNAs fused to mobile tRNA sequences for efficient heritable editing in Nicotiana benthamiana and Arabidopsis thaliana model systems. The protocol described here could be adopted to study the function of any gene of interest.
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Affiliation(s)
- Ugrappa Nagalakshmi
- Department of Plant Biology and The Genome Center, College of Biological Sciences, University of California, Davis, Davis, CA, USA.
| | - Nathan Meier
- Department of Plant Biology and The Genome Center, College of Biological Sciences, University of California, Davis, Davis, CA, USA
| | - Savithramma P Dinesh-Kumar
- Department of Plant Biology and The Genome Center, College of Biological Sciences, University of California, Davis, Davis, CA, USA.
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7
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Wu X, Zhang Y, Jiang X, Ma T, Guo Y, Wu X, Guo Y, Cheng X. Considerations in engineering viral vectors for genome editing in plants. Virology 2024; 589:109922. [PMID: 37924727 DOI: 10.1016/j.virol.2023.109922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 10/24/2023] [Accepted: 10/27/2023] [Indexed: 11/06/2023]
Abstract
Plant viruses have been engineered to express proteins and induce gene silencing for decades. Recently, plant viruses have also been used to deliver components into plant cells for genome editing, a technique called virus-induced genome editing (VIGE). Although more than a dozen plant viruses have been engineered into VIGE vectors and VIGE has been successfully accomplished in some plant species, application of VIGE to crops that are difficult to tissue culture and/or have low regeneration efficiency is still tough. This paper discusses factors to consider for an ideal VIGE vector, including insertion capacity for foreign DNA, vertical transmission ability, expression level of the target gene, stability of foreign DNA insertion, and biosafety. We also proposed a step-by-step schedule for excavating the suitable viral vector for VIGE.
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Affiliation(s)
- Xiaoyun Wu
- College of Plant Protection, Northeast Agricultural University, Harbin, 150030, Heilongjiang, PR China; Key Laboratory of Germplasm Enhancement, Physiology and Ecology of Food Crops in Cold Region of Chinese Education Ministry, Northeast Agricultural University, Harbin, 150030, PR China
| | - Ying Zhang
- College of Plant Protection, Northeast Agricultural University, Harbin, 150030, Heilongjiang, PR China
| | - Xue Jiang
- College of Plant Protection, Northeast Agricultural University, Harbin, 150030, Heilongjiang, PR China
| | - Tingshuai Ma
- College of Plant Protection, Northeast Agricultural University, Harbin, 150030, Heilongjiang, PR China
| | - Yating Guo
- College of Plant Protection, Northeast Agricultural University, Harbin, 150030, Heilongjiang, PR China
| | - Xiaoxia Wu
- College of Agriculture, Northeast Agricultural University, Harbin, 150030, PR China
| | - Yushuang Guo
- Key Laboratory of Molecular Genetics, Guizhou Academy of Tobacco Science, Guiyang, 550081, Guizhou, PR China.
| | - Xiaofei Cheng
- College of Plant Protection, Northeast Agricultural University, Harbin, 150030, Heilongjiang, PR China; Key Laboratory of Germplasm Enhancement, Physiology and Ecology of Food Crops in Cold Region of Chinese Education Ministry, Northeast Agricultural University, Harbin, 150030, PR China.
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8
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Lee SY, Kang B, Venkatesh J, Lee JH, Lee S, Kim JM, Back S, Kwon JK, Kang BC. Development of virus-induced genome editing methods in Solanaceous crops. HORTICULTURE RESEARCH 2024; 11:uhad233. [PMID: 38222822 PMCID: PMC10782499 DOI: 10.1093/hr/uhad233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 11/01/2023] [Indexed: 01/16/2024]
Abstract
Genome editing (GE) using CRISPR/Cas systems has revolutionized plant mutagenesis. However, conventional transgene-mediated GE methods have limitations due to the time-consuming generation of stable transgenic lines expressing the Cas9/single guide RNA (sgRNA) module through tissue cultures. Virus-induced genome editing (VIGE) systems have been successfully employed in model plants, such as Arabidopsis thaliana and Nicotiana spp. In this study, we developed two VIGE methods for Solanaceous plants. First, we used the tobacco rattle virus (TRV) vector to deliver sgRNAs into a transgenic tomato (Solanum lycopersicum) line of cultivar Micro-Tom expressing Cas9. Second, we devised a transgene-free GE method based on a potato virus X (PVX) vector to deliver Cas9 and sgRNAs. We designed and cloned sgRNAs targeting Phytoene desaturase in the VIGE vectors and determined optimal conditions for VIGE. We evaluated VIGE efficiency through deep sequencing of the target gene after viral vector inoculation, detecting 40.3% and 36.5% mutation rates for TRV- and PVX-mediated GE, respectively. To improve editing efficiency, we applied a 37°C heat treatment, which increased the editing efficiency by 33% to 46% and 56% to 76% for TRV- and PVX-mediated VIGE, respectively. To obtain edited plants, we subjected inoculated cotyledons to tissue culture, yielding successful editing events. We also demonstrated that PVX-mediated GE can be applied to other Solanaceous crops, such as potato (Solanum tuberosum) and eggplant (Solanum melongena). These simple and highly efficient VIGE methods have great potential for generating genome-edited plants in Solanaceous crops.
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Affiliation(s)
- Seo-Young Lee
- Department of Agriculture, Forestry and Bioresources, Research Institute of Agriculture and Life Sciences, Plant Genomics Breeding Institute, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Bomi Kang
- Interdisciplinary Program in Agricultural Biotechnology, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Jelli Venkatesh
- Department of Agriculture, Forestry and Bioresources, Research Institute of Agriculture and Life Sciences, Plant Genomics Breeding Institute, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Joung-Ho Lee
- Department of Agriculture, Forestry and Bioresources, Research Institute of Agriculture and Life Sciences, Plant Genomics Breeding Institute, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Seyoung Lee
- Department of Agriculture, Forestry and Bioresources, Research Institute of Agriculture and Life Sciences, Plant Genomics Breeding Institute, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Jung-Min Kim
- Interdisciplinary Program in Agricultural Biotechnology, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Seungki Back
- Department of Agriculture, Forestry and Bioresources, Research Institute of Agriculture and Life Sciences, Plant Genomics Breeding Institute, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Jin-Kyung Kwon
- Department of Agriculture, Forestry and Bioresources, Research Institute of Agriculture and Life Sciences, Plant Genomics Breeding Institute, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Byoung-Cheorl Kang
- Department of Agriculture, Forestry and Bioresources, Research Institute of Agriculture and Life Sciences, Plant Genomics Breeding Institute, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
- Interdisciplinary Program in Agricultural Biotechnology, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
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9
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Suprasanna P, Klimek-Chodacka M, Jain SM. Editorial: CRISPR tools, technology development, and application. FRONTIERS IN PLANT SCIENCE 2023; 14:1329780. [PMID: 38023829 PMCID: PMC10679726 DOI: 10.3389/fpls.2023.1329780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Accepted: 11/03/2023] [Indexed: 12/01/2023]
Affiliation(s)
- Penna Suprasanna
- Amity Centre for Nuclear Biotechnology, Amity Institute of Biotechnology, Amity University of Maharashtra, Mumbai, India
| | | | - Shri Mohan Jain
- Department of Plant Production, University of Helsinki, Helsinki, Finland
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10
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Zhou X, Zhao Y, Ni P, Ni Z, Sun Q, Zong Y. CRISPR-mediated acceleration of wheat improvement: advances and perspectives. J Genet Genomics 2023; 50:815-834. [PMID: 37741566 DOI: 10.1016/j.jgg.2023.09.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 09/13/2023] [Accepted: 09/14/2023] [Indexed: 09/25/2023]
Abstract
Common wheat (Triticum aestivum) is one of the most widely cultivated and consumed crops globally. In the face of limited arable land and climate changes, it is a great challenge to maintain current and increase future wheat production. Enhancing agronomic traits in wheat by introducing mutations across all three homoeologous copies of each gene has proven to be a difficult task due to its large genome with high repetition. However, clustered regularly interspaced short palindromic repeat (CRISPR)/CRISPR-associated nuclease (Cas) genome editing technologies offer a powerful means of precisely manipulating the genomes of crop species, thereby opening up new possibilities for biotechnology and breeding. In this review, we first focus on the development and optimization of the current CRISPR-based genome editing tools in wheat, emphasizing recent breakthroughs in precise and multiplex genome editing. We then describe the general procedure of wheat genome editing and highlight different methods to deliver the genome editing reagents into wheat cells. Furthermore, we summarize the recent applications and advancements of CRISPR/Cas technologies for wheat improvement. Lastly, we discuss the remaining challenges specific to wheat genome editing and its future prospects.
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Affiliation(s)
- Ximeng Zhou
- Frontiers Science Center for Molecular Design Breeding, Key Laboratory of Crop Heterosis and Utilization, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
| | - Yidi Zhao
- Frontiers Science Center for Molecular Design Breeding, Key Laboratory of Crop Heterosis and Utilization, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
| | - Pei Ni
- Frontiers Science Center for Molecular Design Breeding, Key Laboratory of Crop Heterosis and Utilization, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
| | - Zhongfu Ni
- Frontiers Science Center for Molecular Design Breeding, Key Laboratory of Crop Heterosis and Utilization, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
| | - Qixin Sun
- Frontiers Science Center for Molecular Design Breeding, Key Laboratory of Crop Heterosis and Utilization, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China
| | - Yuan Zong
- Frontiers Science Center for Molecular Design Breeding, Key Laboratory of Crop Heterosis and Utilization, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing 100193, China.
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11
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Karmacharya A, Li D, Leng Y, Shi G, Liu Z, Yang S, Du Y, Dai W, Zhong S. Targeting Disease Susceptibility Genes in Wheat Through wide Hybridization with Maize Expressing Cas9 and Guide RNA. MOLECULAR PLANT-MICROBE INTERACTIONS : MPMI 2023; 36:554-557. [PMID: 37014117 DOI: 10.1094/mpmi-01-23-0004-sc] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Two genes (TaHRC and Tsn1) conferring susceptibility to Fusarium head blight and tan spot, Septoria nodorum blotch, and spot blotch in wheat were targeted through wide hybridization with maize expressing Cas9 and guide RNA (gRNA). For each gene, two target sites were selected and corresponding gRNA expression cassettes were synthesized and cloned into a binary vector carrying the CRISPR/Cas9-mediated genome editing machinery. The constructed binary vectors were used to transform the hybrid maize Hi-II through an Agrobacterium-mediated approach to generate T0 and T1 plants, which were used to cross with wheat variety Dayn for targeting Tsn1 or the susceptible allele (TaHRC-S) of TaHRC as well as with the near-isogenic line (Day-Fhb1) of Dayn for targeting the resistant allele (TaHRC-R) of TaHRC. Haploid embryos were rescued in vitro from the wide crosses to generate haploid plants. PCR amplification and sequencing indicated that 15 to 33% of the haploid plants contained the target gene with mutations at the target sites. This wheat × maize hybridization combined with genome editing approach provides a useful alternative tool, not only for targeting susceptibility genes to improve disease resistance without regulatory issues, but also for understanding gene function in wheat. [Formula: see text] Copyright © 2023 The Author(s). This is an open access article distributed under the CC BY-NC-ND 4.0 International license.
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Affiliation(s)
- Anil Karmacharya
- Department of Plant Pathology, North Dakota State University, Fargo, ND 58102, U.S.A
| | - Dandan Li
- Department of Plant Pathology, North Dakota State University, Fargo, ND 58102, U.S.A
| | - Yueqiang Leng
- Department of Plant Pathology, North Dakota State University, Fargo, ND 58102, U.S.A
| | - Gongjun Shi
- Department of Plant Pathology, North Dakota State University, Fargo, ND 58102, U.S.A
| | - Zhaohui Liu
- Department of Plant Pathology, North Dakota State University, Fargo, ND 58102, U.S.A
| | - Shengming Yang
- USDA-ARS Cereal Crops Research Unit, Edward T. Schafer Agricultural Research Center, Fargo, ND 58102, U.S.A
| | - Yang Du
- Department of Computer Systems and Software Engineering, Valley City State University, Valley City, ND 58072, U.S.A
| | - Wenhao Dai
- Department of Plant Sciences, North Dakota State University, Fargo, ND 58102, U.S.A
| | - Shaobin Zhong
- Department of Plant Pathology, North Dakota State University, Fargo, ND 58102, U.S.A
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Wang B, Meng T, Xiao B, Yu T, Yue T, Jin Y, Ma P. Fighting wheat powdery mildew: from genes to fields. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2023; 136:196. [PMID: 37606731 DOI: 10.1007/s00122-023-04445-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 08/07/2023] [Indexed: 08/23/2023]
Abstract
KEY MESSAGE Host resistance conferred by Pm genes provides an effective strategy to control powdery mildew. The study of Pm genes helps modern breeding develop toward more intelligent and customized. Powdery mildew of wheat is one of the most destructive diseases seriously threatening the crop yield and quality worldwide. The genetic research on powdery mildew (Pm) resistance has entered a new era. Many Pm genes from wheat and its wild and domesticated relatives have been mined and cloned. Meanwhile, modern breeding strategies based on high-throughput sequencing and genome editing are emerging and developing toward more intelligent and customized. This review highlights mining and cloning of Pm genes, molecular mechanism studies on the resistance and avirulence genes, and prospects for genomic-assisted breeding for powdery mildew resistance in wheat.
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Affiliation(s)
- Bo Wang
- Yantai Key Laboratory of Characteristic Agricultural Biological Resource Conservation and Germplasm Innovative Utilization, College of Life Sciences, Yantai University, Yantai, 264005, China
| | - Ting Meng
- Yantai Key Laboratory of Characteristic Agricultural Biological Resource Conservation and Germplasm Innovative Utilization, College of Life Sciences, Yantai University, Yantai, 264005, China
| | - Bei Xiao
- Yantai Key Laboratory of Characteristic Agricultural Biological Resource Conservation and Germplasm Innovative Utilization, College of Life Sciences, Yantai University, Yantai, 264005, China
| | - Tianying Yu
- Yantai Key Laboratory of Characteristic Agricultural Biological Resource Conservation and Germplasm Innovative Utilization, College of Life Sciences, Yantai University, Yantai, 264005, China
| | - Tingyan Yue
- Yantai Key Laboratory of Characteristic Agricultural Biological Resource Conservation and Germplasm Innovative Utilization, College of Life Sciences, Yantai University, Yantai, 264005, China
| | - Yuli Jin
- Yantai Key Laboratory of Characteristic Agricultural Biological Resource Conservation and Germplasm Innovative Utilization, College of Life Sciences, Yantai University, Yantai, 264005, China
| | - Pengtao Ma
- Yantai Key Laboratory of Characteristic Agricultural Biological Resource Conservation and Germplasm Innovative Utilization, College of Life Sciences, Yantai University, Yantai, 264005, China.
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13
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Tamilselvan-Nattar-Amutha S, Hiekel S, Hartmann F, Lorenz J, Dabhi RV, Dreissig S, Hensel G, Kumlehn J, Heckmann S. Barley stripe mosaic virus-mediated somatic and heritable gene editing in barley ( Hordeum vulgare L.). FRONTIERS IN PLANT SCIENCE 2023; 14:1201446. [PMID: 37404527 PMCID: PMC10315673 DOI: 10.3389/fpls.2023.1201446] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 06/02/2023] [Indexed: 07/06/2023]
Abstract
Genome editing strategies in barley (Hordeum vulgare L.) typically rely on Agrobacterium-mediated genetic transformation for the delivery of required genetic reagents involving tissue culture techniques. These approaches are genotype-dependent, time-consuming, and labor-intensive, which hampers rapid genome editing in barley. More recently, plant RNA viruses have been engineered to transiently express short guide RNAs facilitating CRISPR/Cas9-based targeted genome editing in plants that constitutively express Cas9. Here, we explored virus-induced genome editing (VIGE) based on barley stripe mosaic virus (BSMV) in Cas9-transgenic barley. Somatic and heritable editing in the ALBOSTRIANS gene (CMF7) resulting in albino/variegated chloroplast-defective barley mutants is shown. In addition, somatic editing in meiosis-related candidate genes in barley encoding ASY1 (an axis-localized HORMA domain protein), MUS81 (a DNA structure-selective endonuclease), and ZYP1 (a transverse filament protein of the synaptonemal complex) was achieved. Hence, the presented VIGE approach using BSMV enables rapid somatic and also heritable targeted gene editing in barley.
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14
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Luo K, Guo J, He D, Li G, Ouellet T. Deoxynivalenol accumulation and detoxification in cereals and its potential role in wheat- Fusarium graminearum interactions. ABIOTECH 2023; 4:155-171. [PMID: 37581023 PMCID: PMC10423186 DOI: 10.1007/s42994-023-00096-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 01/27/2023] [Indexed: 08/16/2023]
Abstract
Deoxynivalenol (DON) is a prominent mycotoxin showing significant accumulation in cereal plants during infection by the phytopathogen Fusarium graminearum. It is a virulence factor that is important in the spread of F. graminearum within cereal heads, and it causes serious yield losses and significant contamination of cereal grains. In recent decades, genetic and genomic studies have facilitated the characterization of the molecular pathways of DON biosynthesis in F. graminearum and the environmental factors that influence DON accumulation. In addition, diverse scab resistance traits related to the repression of DON accumulation in plants have been identified, and experimental studies of wheat-pathogen interactions have contributed to understanding detoxification mechanisms in host plants. The present review illustrates and summarizes the molecular networks of DON mycotoxin production in F. graminearum and the methods of DON detoxification in plants based on the current literature, which provides molecular targets for crop improvement programs. This review also comprehensively discusses recent advances and challenges related to genetic engineering-mediated cultivar improvements to strengthen scab resistance. Furthermore, ongoing advancements in genetic engineering will enable the application of these molecular targets to develop more scab-resistant wheat cultivars with DON detoxification traits.
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Affiliation(s)
- Kun Luo
- Shaanxi Key Laboratory of Chinese Jujube, College of Life Science, Yan’an University, Yan’an, 716000 China
| | - Jiao Guo
- Shaanxi Key Laboratory of Chinese Jujube, College of Life Science, Yan’an University, Yan’an, 716000 China
| | - Dejia He
- Shaanxi Key Laboratory of Chinese Jujube, College of Life Science, Yan’an University, Yan’an, 716000 China
| | - Guangwei Li
- Shaanxi Key Laboratory of Chinese Jujube, College of Life Science, Yan’an University, Yan’an, 716000 China
| | - Thérèse Ouellet
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, 960 Carling Ave, Ottawa, ON K1A 0C6 Canada
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15
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Liu Q, Zhao C, Sun K, Deng Y, Li Z. Engineered biocontainable RNA virus vectors for non-transgenic genome editing across crop species and genotypes. MOLECULAR PLANT 2023; 16:616-631. [PMID: 36751129 DOI: 10.1016/j.molp.2023.02.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 01/13/2023] [Accepted: 02/01/2023] [Indexed: 06/18/2023]
Abstract
CRISPR/Cas genome-editing tools provide unprecedented opportunities for basic plant biology research and crop breeding. However, the lack of robust delivery methods has limited the widespread adoption of these revolutionary technologies in plant science. Here, we report an efficient, non-transgenic CRISPR/Cas delivery platform based on the engineered tomato spotted wilt virus (TSWV), an RNA virus with a host range of over 1000 plant species. We eliminated viral elements essential for insect transmission to liberate genome space for accommodating large genetic cargoes without sacrificing the ability to infect plant hosts. The resulting non-insect-transmissible viral vectors enabled effective and stable in planta delivery of Cas12a and Cas9 nucleases as well as adenine and cytosine base editors. In systemically infected plant tissues, the deconstructed TSWV-derived vectors induced efficient somatic gene mutations and base conversions in multiple crop species with little genotype dependency. Plants with heritable, bi-allelic mutations could be readily regenerated by culturing the virus-infected tissues in vitro without antibiotic selection. Moreover, we showed that antiviral treatment with ribavirin during tissue culture cleared the viral vectors in 100% of regenerated plants and further augmented the recovery of heritable mutations. Because many plants are recalcitrant to stable transformation, the viral delivery system developed in this work provides a promising tool to overcome gene delivery bottlenecks for genome editing in various crop species and elite varieties.
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Affiliation(s)
- Qian Liu
- State Key Laboratory of Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Chenglu Zhao
- State Key Laboratory of Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Kai Sun
- State Key Laboratory of Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Yinlu Deng
- State Key Laboratory of Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Zhenghe Li
- State Key Laboratory of Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou, China; Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insect Pests, Zhejiang University, Hangzhou, China; Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Zhejiang University, Hangzhou, China.
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16
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Lei J, Li Y, Dai P, Liu C, Zhao Y, You Y, Qu Y, Chen Q, Liu X. Efficient virus-mediated genome editing in cotton using the CRISPR/Cas9 system. FRONTIERS IN PLANT SCIENCE 2022; 13:1032799. [PMID: 36466231 PMCID: PMC9709312 DOI: 10.3389/fpls.2022.1032799] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 10/19/2022] [Indexed: 06/17/2023]
Abstract
Plant virus-mediated sgRNA delivery and expression have great advantages; sgRNA expression can rapidly expand and accumulate along with virus replication and movement, resulting in efficient gene editing efficiency. In this study, a VIGE system based on cotton leaf crumple virus (CLCrV) was established using cotton overexpressing Cas9 (Cas9-OE) as the VIGE receptor. CLCrV-mediated VIGE could not only target and knock out the GhMAPKKK2, GhCLA1 and GhPDS genes subgroup A and D genome sequences but also achieve double mutation of GhCLA1 and GhPDS genes at the same time. These results verified the effectiveness and efficiency of this system. In addition, the off-target effect assay demonstrated that the CLCrV-mediated VIGE system not only has high gene editing efficiency but also high gene editing specificity in cotton. We further explored whether the FT-sgRNA strategy could transport sgRNA to cotton apical meristem (SAM) over long distances to avoid using tissue culture to obtain stable genetic mutants. The results showed that the sgRNA fused with FT mRNA at the 5' end could also efficiently achieve targeted editing of endogenous genes in cotton, but it was difficult to detect heritable mutant progeny. The above results showed that the CLCrV-mediated VIGE system provided an accurate and rapid validation tool for screening effective sgRNAs in cotton.
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Affiliation(s)
- Jianfeng Lei
- College of Agriculture, Xinjiang Agricultural University, Engineering Research Centre of Cotton, Ministry of Education, Urumqi, China
| | - Yue Li
- College of Life Sciences, Xinjiang Agricultural University, Urumqi, China
| | - Peihong Dai
- College of Life Sciences, Xinjiang Agricultural University, Urumqi, China
| | - Chao Liu
- College of Life Sciences, Xinjiang Agricultural University, Urumqi, China
| | - Yi Zhao
- College of Life Sciences, Xinjiang Agricultural University, Urumqi, China
| | - Yangzi You
- College of Life Sciences, Xinjiang Agricultural University, Urumqi, China
| | - Yanying Qu
- College of Agriculture, Xinjiang Agricultural University, Engineering Research Centre of Cotton, Ministry of Education, Urumqi, China
| | - Quanjia Chen
- College of Agriculture, Xinjiang Agricultural University, Engineering Research Centre of Cotton, Ministry of Education, Urumqi, China
| | - Xiaodong Liu
- College of Life Sciences, Xinjiang Agricultural University, Urumqi, China
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17
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Wang X, Chang C. Exploring and exploiting cuticle biosynthesis for abiotic and biotic stress tolerance in wheat and barley. FRONTIERS IN PLANT SCIENCE 2022; 13:1064390. [PMID: 36438119 PMCID: PMC9685406 DOI: 10.3389/fpls.2022.1064390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Accepted: 10/24/2022] [Indexed: 06/16/2023]
Abstract
Wheat and barley are widely distributed cereal crops whose yields are adversely affected by environmental stresses such as drought, salinity, extreme temperatures, and attacks of pathogens and pests. As the interphase between aerial plant organs and their environments, hydrophobic cuticle largely consists of a cutin matrix impregnated and sealed with cuticular waxes. Increasing evidence supports that the cuticle plays a key role in plant adaptation to abiotic and biotic stresses, which could be harnessed for wheat and barley improvement. In this review, we highlighted recent advances in cuticle biosynthesis and its multifaceted roles in abiotic and biotic stress tolerance of wheat and barley. Current strategies, challenges, and future perspectives on manipulating cuticle biosynthesis for abiotic and biotic stress tolerance in wheat and barley are discussed.
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18
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Liu C, Kong M, Zhu J, Qi X, Duan C, Xie C. Engineering null mutants in ZmFER1 confers resistance to ear rot caused by Fusarium verticillioides in maize. PLANT BIOTECHNOLOGY JOURNAL 2022; 20:2045-2047. [PMID: 36005383 PMCID: PMC9616525 DOI: 10.1111/pbi.13914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 08/15/2022] [Accepted: 08/19/2022] [Indexed: 06/15/2023]
Affiliation(s)
- Changlin Liu
- Institute of Crop ScienceChinese Academy of Agricultural Sciences, National Key Facility for Crop Gene Resources and Genetic ImprovementBeijingChina
- Hainan Yazhou Bay Seed LabSanyaChina
| | - Ming Kong
- Institute of Crop ScienceChinese Academy of Agricultural Sciences, National Key Facility for Crop Gene Resources and Genetic ImprovementBeijingChina
| | - Jinjie Zhu
- Institute of Crop ScienceChinese Academy of Agricultural Sciences, National Key Facility for Crop Gene Resources and Genetic ImprovementBeijingChina
| | - Xiantao Qi
- Institute of Crop ScienceChinese Academy of Agricultural Sciences, National Key Facility for Crop Gene Resources and Genetic ImprovementBeijingChina
| | - Canxing Duan
- Institute of Crop ScienceChinese Academy of Agricultural Sciences, National Key Facility for Crop Gene Resources and Genetic ImprovementBeijingChina
| | - Chuanxiao Xie
- Institute of Crop ScienceChinese Academy of Agricultural Sciences, National Key Facility for Crop Gene Resources and Genetic ImprovementBeijingChina
- Hainan Yazhou Bay Seed LabSanyaChina
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19
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Ma H, Liu Y, Zhao X, Zhang S, Ma H. Exploring and applying genes to enhance the resistance to Fusarium head blight in wheat. FRONTIERS IN PLANT SCIENCE 2022; 13:1026611. [PMID: 36388594 PMCID: PMC9647131 DOI: 10.3389/fpls.2022.1026611] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 10/13/2022] [Indexed: 06/01/2023]
Abstract
Fusarium head blight (FHB) is a destructive disease in wheat worldwide. Fusarium graminearum species complex (FGSC) is the main causal pathogen causing severe damage to wheat with reduction in both grain yield and quality. Additionally, mycotoxins produced by the FHB pathogens are hazardous to the health of human and livestock. Large numbers of genes conferring FHB resistance to date have been characterized from wheat and its relatives, and some of them have been widely used in breeding and significantly improved the resistance to FHB in wheat. However, the disease spreads rapidly and has been severe due to the climate and cropping system changes in the last decade. It is an urgent necessity to explore and apply more genes related to FHB resistant for wheat breeding. In this review, we summarized the genes with FHB resistance and mycotoxin detoxication identified from common wheat and its relatives by using forward- and reverse-genetic approaches, and introduced the effects of such genes and the genes with FHB resistant from other plant species, and host-induced gene silencing (HIGS) in enhancing the resistance to FHB in wheat. We also outlined the molecular rationale of the resistance and the application of the cloned genes for FHB control. Finally, we discussed the future challenges and opportunities in this field.
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Affiliation(s)
- Haigang Ma
- *Correspondence: Haigang Ma, ; Hongxiang Ma,
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20
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Chen H, Su Z, Tian B, Hao G, Trick HN, Bai G. TaHRC suppresses the calcium-mediated immune response and triggers wheat Fusarium head blight susceptibility. PLANT PHYSIOLOGY 2022; 190:1566-1569. [PMID: 35900181 PMCID: PMC9614457 DOI: 10.1093/plphys/kiac352] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 07/05/2022] [Indexed: 06/02/2023]
Abstract
A wild-type allele of TaHRC suppresses the calcium-mediated immune response to Fusarium graminearum infection and facilitates the spread of Fusarium head blight disease symptoms within a wheat spike.
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Affiliation(s)
- Hui Chen
- Authors for correspondence: (H.C.), (G.B.)
| | - Zhenqi Su
- Department of Agronomy, Kansas State University, Manhattan, Kansas 66506, USA
- College of Agriculture and Biotechnology, China Agricultural University, Beijing 100193, China
| | | | - Guixia Hao
- Mycotoxin Prevention and Applied Microbiology Research Unit, NCAUR, USDA-ARS, Peoria, Illinois 61604, USA
| | - Harold N Trick
- Department of Plant Pathology, Kansas State University, Manhattan, Kansas 66506, USA
| | - Guihua Bai
- Authors for correspondence: (H.C.), (G.B.)
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21
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Zhang C, Liu S, Li X, Zhang R, Li J. Virus-Induced Gene Editing and Its Applications in Plants. Int J Mol Sci 2022; 23:10202. [PMID: 36142116 PMCID: PMC9499690 DOI: 10.3390/ijms231810202] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 07/28/2022] [Accepted: 08/24/2022] [Indexed: 11/16/2022] Open
Abstract
CRISPR/Cas-based genome editing technologies, which allow the precise manipulation of plant genomes, have revolutionized plant science and enabled the creation of germplasms with beneficial traits. In order to apply these technologies, CRISPR/Cas reagents must be delivered into plant cells; however, this is limited by tissue culture challenges. Recently, viral vectors have been used to deliver CRISPR/Cas reagents into plant cells. Virus-induced genome editing (VIGE) has emerged as a powerful method with several advantages, including high editing efficiency and a simplified process for generating gene-edited DNA-free plants. Here, we briefly describe CRISPR/Cas-based genome editing. We then focus on VIGE systems and the types of viruses used currently for CRISPR/Cas9 cassette delivery and genome editing. We also highlight recent applications of and advances in VIGE in plants. Finally, we discuss the challenges and potential for VIGE in plants.
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Affiliation(s)
| | | | | | | | - Jun Li
- State Key Laboratory of North China Crop Improvement and Regulation, College of Life Sciences, Hebei Agricultural University, Baoding 071001, China
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22
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Beernink BM, Lappe RR, Bredow M, Whitham SA. Impacts of RNA Mobility Signals on Virus Induced Somatic and Germline Gene Editing. Front Genome Ed 2022; 4:925088. [PMID: 35755451 PMCID: PMC9219249 DOI: 10.3389/fgeed.2022.925088] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 05/16/2022] [Indexed: 11/13/2022] Open
Abstract
Viral vectors are being engineered to deliver CRISPR/Cas9 components systemically in plants to induce somatic or heritable site-specific mutations. It is hypothesized that RNA mobility signals facilitate entry of viruses or single guide RNAs (sgRNAs) into the shoot apical meristem where germline mutations can occur. Our objective was to understand the impact of RNA mobility signals on virus-induced somatic and germline gene editing in Nicotiana benthamiana and Zea mays. Previously, we showed that foxtail mosaic virus (FoMV) expressing sgRNA induced somatic mutations in N. benthamiana and Z. mays expressing Cas9. Here, we fused RNA mobility signals to sgRNAs targeting the genes encoding either N. benthamiana phytoene desaturase (PDS) or Z. mays high affinity potassium transporter 1 (HKT1). Addition of Arabidopsis thaliana Flowering Locus T (AtFT) and A. thaliana tRNA-Isoleucine (AttRNAIle) did not improve FoMV-induced somatic editing, and neither were sufficient to facilitate germline mutations in N. benthamiana. Maize FT homologs, Centroradialus 16 (ZCN16) and ZCN19, as well as AttRNAIle were found to aid somatic editing in maize but did not enable sgRNAs delivered by FoMV to induce germline mutations. Additional viral guide RNA delivery systems were assessed for somatic and germline mutations in N. benthamiana with the intention of gaining a better understanding of the specificity of mobile signal-facilitated germline editing. Potato virus X (PVX), barley stripe mosaic virus (BSMV), and tobacco rattle virus (TRV) were included in this comparative study, and all three of these viruses delivering sgRNA were able to induce somatic and germline mutations. Unexpectedly, PVX, a potexvirus closely related to FoMV, expressing sgRNA alone induced biallelic edited progeny, indicating that mobility signals are dispensable in virus-induced germline editing. These results show that PVX, BSMV, and TRV expressing sgRNA all have an innate ability to induce mutations in the germline. Our results indicate that mobility signals alone may not be sufficient to enable virus-based delivery of sgRNAs using the viruses, FoMV, PVX, BSMV, and TRV into cell types that result in germline mutations.
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Affiliation(s)
| | | | | | - Steven A. Whitham
- Department of Plant Pathology and Microbiology, Iowa State University, Ames, IA, United States
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