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Cheng X, Zhou G, Chen W, Tan L, Long Q, Cui F, Tan L, Zou G, Tan Y. Current status of molecular rice breeding for durable and broad-spectrum resistance to major diseases and insect pests. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2024; 137:219. [PMID: 39254868 PMCID: PMC11387466 DOI: 10.1007/s00122-024-04729-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2024] [Accepted: 08/24/2024] [Indexed: 09/11/2024]
Abstract
In the past century, there have been great achievements in identifying resistance (R) genes and quantitative trait loci (QTLs) as well as revealing the corresponding molecular mechanisms for resistance in rice to major diseases and insect pests. The introgression of R genes to develop resistant rice cultivars has become the most effective and eco-friendly method to control pathogens/insects at present. However, little attention has been paid to durable and broad-spectrum resistance, which determines the real applicability of R genes. Here, we summarize all the R genes and QTLs conferring durable and broad-spectrum resistance in rice to fungal blast, bacterial leaf blight (BLB), and the brown planthopper (BPH) in molecular breeding. We discuss the molecular mechanisms and feasible methods of improving durable and broad-spectrum resistance to blast, BLB, and BPH. We will particularly focus on pyramiding multiple R genes or QTLs as the most useful method to improve durability and broaden the disease/insect spectrum in practical breeding regardless of its uncertainty. We believe that this review provides useful information for scientists and breeders in rice breeding for multiple stress resistance in the future.
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Affiliation(s)
- Xiaoyan Cheng
- Jiangxi Tiandao Liangan Seed Industry Co., Ltd., 568 South Huancheng Rd., Yuanzhou Dist., Yichun, People's Republic of China
- National Engineering Research Center of Rice (Nanchang), Rice Research Institute, Jiangxi Academy of Agricultural Sciences, Nanchang, People's Republic of China
- College of Life Sciences and Resources and Environment, Yichun University, Yichun, People's Republic of China
| | - Guohua Zhou
- College of Life Sciences and Resources and Environment, Yichun University, Yichun, People's Republic of China
| | - Wei Chen
- Jiangxi Super-Rice Research and Development Center, Jiangxi Provincial Key Laboratory of Rice Germplasm Innovation and Breeding, Jiangxi Academy of Agricultural Sciences, National Engineering Research Center for Rice, Nanchang, People's Republic of China
| | - Lin Tan
- Jiangxi Tiandao Liangan Seed Industry Co., Ltd., 568 South Huancheng Rd., Yuanzhou Dist., Yichun, People's Republic of China
| | - Qishi Long
- Jiangxi Tiandao Liangan Seed Industry Co., Ltd., 568 South Huancheng Rd., Yuanzhou Dist., Yichun, People's Republic of China
| | - Fusheng Cui
- Yichun Academy of Sciences (Jiangxi Selenium-Rich Industry Research Institute), Yichun, People's Republic of China
| | - Lei Tan
- Jiangxi Tiandao Liangan Seed Industry Co., Ltd., 568 South Huancheng Rd., Yuanzhou Dist., Yichun, People's Republic of China
| | - Guoxing Zou
- National Engineering Research Center of Rice (Nanchang), Rice Research Institute, Jiangxi Academy of Agricultural Sciences, Nanchang, People's Republic of China.
| | - Yong Tan
- Jiangxi Tiandao Liangan Seed Industry Co., Ltd., 568 South Huancheng Rd., Yuanzhou Dist., Yichun, People's Republic of China.
- Jiangxi Super-Rice Research and Development Center, Jiangxi Provincial Key Laboratory of Rice Germplasm Innovation and Breeding, Jiangxi Academy of Agricultural Sciences, National Engineering Research Center for Rice, Nanchang, People's Republic of China.
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2
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Zhou J, Pan Q, Xue Y, Dong Y, Chen Y, Huang L, Zhang B, Liu ZQ, Zheng Y. Synthetic biology for Monascus: From strain breeding to industrial production. Biotechnol J 2024; 19:e2400180. [PMID: 39014924 DOI: 10.1002/biot.202400180] [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: 03/19/2024] [Revised: 06/25/2024] [Accepted: 06/29/2024] [Indexed: 07/18/2024]
Abstract
Traditional Chinese food therapies often motivate the development of modern medicines, and learning from them will bring bright prospects. Monascus, a conventional Chinese fungus with centuries of use in the food industry, produces various metabolites, including natural pigments, lipid-lowering substances, and other bioactive ingredients. Recent Monascus studies focused on the metabolite biosynthesis mechanisms, strain modifications, and fermentation process optimizations, significantly advancing Monascus development on a lab scale. However, the advanced manufacture for Monascus is lacking, restricting its scale production. Here, the synthetic biology techniques and their challenges for engineering filamentous fungi were summarized, especially for Monascus. With further in-depth discussions of automatic solid-state fermentation manufacturing and prospects for combining synthetic biology and process intensification, the industrial scale production of Monascus will succeed with the help of Monascus improvement and intelligent fermentation control, promoting Monascus applications in food, cosmetic, agriculture, medicine, and environmental protection industries.
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Affiliation(s)
- Junping Zhou
- The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou, China
| | - Qilu Pan
- The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou, China
| | - Yinan Xue
- The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou, China
| | - Yaping Dong
- The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou, China
| | - Yihong Chen
- The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou, China
| | - Lianggang Huang
- The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou, China
| | - Bo Zhang
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, China
| | - Zhi-Qiang Liu
- The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou, China
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, China
| | - Yuguo Zheng
- The National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou, China
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Tanveer M, Abidin ZU, Alawadi HFN, Shahzad AN, Mahmood A, Khan BA, Qari S, Oraby HF. Recent advances in genome editing strategies for balancing growth and defence in sugarcane ( Saccharum officinarum). FUNCTIONAL PLANT BIOLOGY : FPB 2024; 51:FP24036. [PMID: 38696670 DOI: 10.1071/fp24036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Accepted: 04/14/2024] [Indexed: 05/04/2024]
Abstract
Sugarcane (Saccharum officinarum ) has gained more attention worldwide in recent decades because of its importance as a bioenergy resource and in producing table sugar. However, the production capabilities of conventional varieties are being challenged by the changing climates, which struggle to meet the escalating demands of the growing global population. Genome editing has emerged as a pivotal field that offers groundbreaking solutions in agriculture and beyond. It includes inserting, removing or replacing DNA in an organism's genome. Various approaches are employed to enhance crop yields and resilience in harsh climates. These techniques include zinc finger nuclease (ZFN), transcription activator-like effector nuclease (TALEN) and clustered regularly interspaced short palindromic repeats/associated protein (CRISPR/Cas). Among these, CRISPR/Cas is one of the most promising and rapidly advancing fields. With the help of these techniques, several crops like rice (Oryza sativa ), tomato (Solanum lycopersicum ), maize (Zea mays ), barley (Hordeum vulgare ) and sugarcane have been improved to be resistant to viral diseases. This review describes recent advances in genome editing with a particular focus on sugarcane and focuses on the advantages and limitations of these approaches while also considering the regulatory and ethical implications across different countries. It also offers insights into future prospects and the application of these approaches in agriculture.
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Affiliation(s)
- Maira Tanveer
- Department of Botany, University of Agriculture Faisalabad, Faisalabad 38000, Pakistan
| | - Zain Ul Abidin
- Department of Botany, University of Agriculture Faisalabad, Faisalabad 38000, Pakistan
| | | | - Ahmad Naeem Shahzad
- Department of Agronomy, Bahauddin Zakarriya University, Multan 60650, Pakistan
| | - Athar Mahmood
- Department of Agronomy, University of Agriculture Faisalabad, Faisalabad 38000, Pakistan
| | - Bilal Ahmad Khan
- Department of Agronomy, College of Agriculture, University of Sargodha, Sargodha, Pakistan
| | - Sameer Qari
- Department of Biology, Al-Jumum University College, Umm Al-Qura University, Makkah 21955, Saudi Arabia
| | - Hesham Farouk Oraby
- Deanship of Scientific Research, Umm Al-Qura University, Makkah 21955, Saudi Arabia; and Department of Crop Science, Faculty of Agriculture, Zagazig University, Zagazig 44519, Egypt
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4
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Ontoy JC, Ham JH. Mapping and Omics Integration: Towards Precise Rice Disease Resistance Breeding. PLANTS (BASEL, SWITZERLAND) 2024; 13:1205. [PMID: 38732420 PMCID: PMC11085595 DOI: 10.3390/plants13091205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 04/18/2024] [Accepted: 04/23/2024] [Indexed: 05/13/2024]
Abstract
Rice (Oryza sativa), as a staple crop feeding a significant portion of the global population, particularly in Asian countries, faces constant threats from various diseases jeopardizing global food security. A precise understanding of disease resistance mechanisms is crucial for developing resilient rice varieties. Traditional genetic mapping methods, such as QTL mapping, provide valuable insights into the genetic basis of diseases. However, the complex nature of rice diseases demands a holistic approach to gain an accurate knowledge of it. Omics technologies, including genomics, transcriptomics, proteomics, and metabolomics, enable a comprehensive analysis of biological molecules, uncovering intricate molecular interactions within the rice plant. The integration of various mapping techniques using multi-omics data has revolutionized our understanding of rice disease resistance. By overlaying genetic maps with high-throughput omics datasets, researchers can pinpoint specific genes, proteins, or metabolites associated with disease resistance. This integration enhances the precision of disease-related biomarkers with a better understanding of their functional roles in disease resistance. The improvement of rice breeding for disease resistance through this integration represents a significant stride in agricultural science because a better understanding of the molecular intricacies and interactions underlying disease resistance architecture leads to a more precise and efficient development of resilient and productive rice varieties. In this review, we explore how the integration of mapping and omics data can result in a transformative impact on rice breeding for enhancing disease resistance.
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Affiliation(s)
- John Christian Ontoy
- Department of Plant Pathology and Crop Physiology, LSU AgCenter, Baton Rouge, LA 70803, USA;
- Department of Plant Pathology and Crop Physiology, College of Agriculture, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Jong Hyun Ham
- Department of Plant Pathology and Crop Physiology, LSU AgCenter, Baton Rouge, LA 70803, USA;
- Department of Plant Pathology and Crop Physiology, College of Agriculture, Louisiana State University, Baton Rouge, LA 70803, USA
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Nagaraj PH. Determining Macromolecular Structures Using Cryo-Electron Microscopy. Methods Mol Biol 2024; 2787:315-332. [PMID: 38656500 DOI: 10.1007/978-1-0716-3778-4_22] [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: 04/26/2024]
Abstract
Structural insights into macromolecular and protein complexes provide key clues about the molecular basis of the function. Cryogenic electron microscopy (cryo-EM) has emerged as a powerful structural biology method for studying protein and macromolecular structures at high resolution in both native and near-native states. Despite the ability to get detailed structural insights into the processes underlying protein function using cryo-EM, there has been hesitancy amongst plant biologists to apply the method for biomolecular interaction studies. This is largely evident from the relatively fewer structural depositions of proteins and protein complexes from plant origin in electron microscopy databank. Even though the progress has been slow, cryo-EM has significantly contributed to our understanding of the molecular biology processes underlying photosynthesis, energy transfer in plants, besides viruses infecting plants. This chapter introduces sample preparation for both negative-staining electron microscopy (NSEM) and cryo-EM for plant proteins and macromolecular complexes and data analysis using single particle analysis for beginners.
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Affiliation(s)
- Pradeep Hiriyur Nagaraj
- Institute of Molecular Biotechnology, Department of Biotechnology, University of Natural Resources and Life Sciences (BOKU), Vienna, Austria.
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Ntui VO, Tripathi JN, Kariuki SM, Tripathi L. Cassava molecular genetics and genomics for enhanced resistance to diseases and pests. MOLECULAR PLANT PATHOLOGY 2024; 25:e13402. [PMID: 37933591 PMCID: PMC10788594 DOI: 10.1111/mpp.13402] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Revised: 10/16/2023] [Accepted: 10/17/2023] [Indexed: 11/08/2023]
Abstract
Cassava (Manihot esculenta) is one of the most important sources of dietary calories in the tropics, playing a central role in food and economic security for smallholder farmers. Cassava production is highly constrained by several pests and diseases, mostly cassava mosaic disease (CMD) and cassava brown streak disease (CBSD). These diseases cause significant yield losses, affecting food security and the livelihoods of smallholder farmers. Developing resistant varieties is a good way of increasing cassava productivity. Although some levels of resistance have been developed for some of these diseases, there is observed breakdown in resistance for some diseases, such as CMD. A frequent re-evaluation of existing disease resistance traits is required to make sure they are still able to withstand the pressure associated with pest and pathogen evolution. Modern breeding approaches such as genomic-assisted selection in addition to biotechnology techniques like classical genetic engineering or genome editing can accelerate the development of pest- and disease-resistant cassava varieties. This article summarizes current developments and discusses the potential of using molecular genetics and genomics to produce cassava varieties resistant to diseases and pests.
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Affiliation(s)
| | | | | | - Leena Tripathi
- International Institute of Tropical AgricultureNairobiKenya
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Wang R, Li C, Jia Z, Su Y, Ai Y, Li Q, Guo X, Tao Z, Lin F, Liang Y. Reversible phosphorylation of a lectin-receptor-like kinase controls xylem immunity. Cell Host Microbe 2023; 31:2051-2066.e7. [PMID: 37977141 DOI: 10.1016/j.chom.2023.10.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 09/23/2023] [Accepted: 10/24/2023] [Indexed: 11/19/2023]
Abstract
Pattern-recognition receptors (PRRs) mediate basal resistance to most phytopathogens. However, plant responses can be cell type specific, and the mechanisms governing xylem immunity remain largely unknown. We show that the lectin-receptor-like kinase LORE contributes to xylem basal resistance in Arabidopsis upon infection with Ralstonia solanacearum, a destructive plant pathogen that colonizes the xylem to cause bacterial wilt. Following R. solanacearum infection, LORE is activated by phosphorylation at residue S761, initiating a phosphorelay that activates reactive oxygen species production and cell wall lignification. To prevent prolonged activation of immune signaling, LORE recruits and phosphorylates type 2C protein phosphatase LOPP, which dephosphorylates LORE and attenuates LORE-mediated xylem immunity to maintain immune homeostasis. A LOPP knockout confers resistance against bacterial wilt disease in Arabidopsis and tomatoes without impacting plant growth. Thus, our study reveals a regulatory mechanism in xylem immunity involving the reversible phosphorylation of receptor-like kinases.
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Affiliation(s)
- Ran Wang
- Zhejiang Xianghu Laboratory, Department of Plant Protection, Zhejiang University, Hangzhou 310058, China
| | - Chenying Li
- Zhejiang Xianghu Laboratory, Department of Plant Protection, Zhejiang University, Hangzhou 310058, China
| | - Zhiyi Jia
- Zhejiang Xianghu Laboratory, Department of Plant Protection, Zhejiang University, Hangzhou 310058, China
| | - Yaxing Su
- Zhejiang Xianghu Laboratory, Department of Plant Protection, Zhejiang University, Hangzhou 310058, China
| | - Yingfei Ai
- Zhejiang Xianghu Laboratory, Department of Plant Protection, Zhejiang University, Hangzhou 310058, China
| | - Qinghong Li
- Zhejiang Xianghu Laboratory, Department of Plant Protection, Zhejiang University, Hangzhou 310058, China
| | - Xijie Guo
- Zhejiang Xianghu Laboratory, Department of Plant Protection, Zhejiang University, Hangzhou 310058, China
| | - Zeng Tao
- Zhejiang Xianghu Laboratory, Department of Plant Protection, Zhejiang University, Hangzhou 310058, China
| | - Fucheng Lin
- Zhejiang Xianghu Laboratory, Department of Plant Protection, Zhejiang University, Hangzhou 310058, China; State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Hangzhou 311200, China.
| | - Yan Liang
- Zhejiang Xianghu Laboratory, Department of Plant Protection, Zhejiang University, Hangzhou 310058, China.
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McLaughlin MS, Roy M, Abbasi PA, Carisse O, Yurgel SN, Ali S. Why Do We Need Alternative Methods for Fungal Disease Management in Plants? PLANTS (BASEL, SWITZERLAND) 2023; 12:3822. [PMID: 38005718 PMCID: PMC10675458 DOI: 10.3390/plants12223822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 11/03/2023] [Accepted: 11/07/2023] [Indexed: 11/26/2023]
Abstract
Fungal pathogens pose a major threat to food production worldwide. Traditionally, chemical fungicides have been the primary means of controlling these pathogens, but many of these fungicides have recently come under increased scrutiny due to their negative effects on the health of humans, animals, and the environment. Furthermore, the use of chemical fungicides can result in the development of resistance in populations of phytopathogenic fungi. Therefore, new environmentally friendly alternatives that provide adequate levels of disease control are needed to replace chemical fungicides-if not completely, then at least partially. A number of alternatives to conventional chemical fungicides have been developed, including plant defence elicitors (PDEs); biological control agents (fungi, bacteria, and mycoviruses), either alone or as consortia; biochemical fungicides; natural products; RNA interference (RNAi) methods; and resistance breeding. This article reviews the conventional and alternative methods available to manage fungal pathogens, discusses their strengths and weaknesses, and identifies potential areas for future research.
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Affiliation(s)
- Michael S. McLaughlin
- Agriculture and Agri-Food Canada, Kentville Research and Development Centre, Kentville, NS B4N 1J5, Canada; (M.S.M.); (M.R.); (P.A.A.)
- Department of Plant, Food and Environmental Sciences, Faculty of Agriculture, Dalhousie University, Truro, NS B2N 4H5, Canada
| | - Maria Roy
- Agriculture and Agri-Food Canada, Kentville Research and Development Centre, Kentville, NS B4N 1J5, Canada; (M.S.M.); (M.R.); (P.A.A.)
- Department of Biology, Acadia University, Wolfville, NS B4P 2R6, Canada
| | - Pervaiz A. Abbasi
- Agriculture and Agri-Food Canada, Kentville Research and Development Centre, Kentville, NS B4N 1J5, Canada; (M.S.M.); (M.R.); (P.A.A.)
| | - Odile Carisse
- Saint-Jean-sur-Richelieu Research Development Centre, Science and Technology Branch, Agriculture and Agri-Food Canada, Saint-Jean-sur-Richelieu, QC J3B 7B5, Canada;
| | - Svetlana N. Yurgel
- United States Department of Agriculture (USDA), Agricultural Research Service, Grain Legume Genetics and Physiology Research Unit, Prosser, WA 99350, USA;
| | - Shawkat Ali
- Agriculture and Agri-Food Canada, Kentville Research and Development Centre, Kentville, NS B4N 1J5, Canada; (M.S.M.); (M.R.); (P.A.A.)
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Yıldırım K, Miladinović D, Sweet J, Akin M, Galović V, Kavas M, Zlatković M, de Andrade E. Genome editing for healthy crops: traits, tools and impacts. FRONTIERS IN PLANT SCIENCE 2023; 14:1231013. [PMID: 37965029 PMCID: PMC10641503 DOI: 10.3389/fpls.2023.1231013] [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: 05/29/2023] [Accepted: 10/09/2023] [Indexed: 11/16/2023]
Abstract
Crop cultivars in commercial use have often been selected because they show high levels of resistance to pathogens. However, widespread cultivation of these crops for many years in the environments favorable to a pathogen requires durable forms of resistance to maintain "healthy crops". Breeding of new varieties tolerant/resistant to biotic stresses by incorporating genetic components related to durable resistance, developing new breeding methods and new active molecules, and improving the Integrated Pest Management strategies have been of great value, but their effectiveness is being challenged by the newly emerging diseases and the rapid change of pathogens due to climatic changes. Genome editing has provided new tools and methods to characterize defense-related genes in crops and improve crop resilience to disease pathogens providing improved food security and future sustainable agricultural systems. In this review, we discuss the principal traits, tools and impacts of utilizing genome editing techniques for achieving of durable resilience and a "healthy plants" concept.
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Affiliation(s)
- Kubilay Yıldırım
- Department of Molecular Biology and Genetics, Faculty of Arts and Sciences, Ondokuz Mayıs University, Samsun, Türkiye
| | - Dragana Miladinović
- Institute of Field and Vegetable Crops, National Institute of Republic of Serbia, Novi Sad, Serbia
| | - Jeremy Sweet
- Sweet Environmental Consultants, Cambridge, United Kingdom
| | - Meleksen Akin
- Department of Horticulture, Iğdır University, Iğdır, Türkiye
| | - Vladislava Galović
- Institute of Lowland Forestry and Environment (ILFE), University of Novi Sad, Novi Sad, Serbia
| | - Musa Kavas
- Department of Agricultural Biotechnology, Faculty of Agriculture, Ondokuz Mayıs University, Samsun, Türkiye
| | - Milica Zlatković
- Institute of Lowland Forestry and Environment (ILFE), University of Novi Sad, Novi Sad, Serbia
| | - Eugenia de Andrade
- National Institute for Agricultural and Veterinary Research (INIAV), I.P., Oeiras, Portugal
- GREEN-IT Bioresources for Sustainability, ITQB NOVA, Oeiras, Portugal
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Jhu MY, Ellison EE, Sinha NR. CRISPR gene editing to improve crop resistance to parasitic plants. Front Genome Ed 2023; 5:1289416. [PMID: 37965302 PMCID: PMC10642197 DOI: 10.3389/fgeed.2023.1289416] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 10/16/2023] [Indexed: 11/16/2023] Open
Abstract
Parasitic plants pose a significant threat to global agriculture, causing substantial crop losses and hampering food security. In recent years, CRISPR (Clustered Regularly Interspaced Short Palindromic Repeats) gene-editing technology has emerged as a promising tool for developing resistance against various plant pathogens. Its application in combating parasitic plants, however, remains largely unexplored. This review aims to summarise current knowledge and research gaps in utilising CRISPR to develop resistance against parasitic plants. First, we outline recent improvements in CRISPR gene editing tools, and what has been used to combat various plant pathogens. To realise the immense potential of CRISPR, a greater understanding of the genetic basis underlying parasitic plant-host interactions is critical to identify suitable target genes for modification. Therefore, we discuss the intricate interactions between parasitic plants and their hosts, highlighting essential genes and molecular mechanisms involved in defence response and multilayer resistance. These include host resistance responses directly repressing parasitic plant germination or growth and indirectly influencing parasitic plant development via manipulating environmental factors. Finally, we evaluate CRISPR-mediated effectiveness and long-term implications for host resistance and crop improvement, including inducible resistance response and tissue-specific activity. In conclusion, this review highlights the challenges and opportunities CRISPR technology provides to combat parasitic plants and provides insights for future research directions to safeguard global agricultural productivity.
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Affiliation(s)
- Min-Yao Jhu
- Crop Science Centre, Department of Plant Sciences, University of Cambridge, Cambridge, United Kingdom
| | - Evan E. Ellison
- Crop Science Centre, Department of Plant Sciences, University of Cambridge, Cambridge, United Kingdom
| | - Neelima R. Sinha
- Department of Plant Biology, University of California, Davis, Davis, CA, United States
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11
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Sardar A. Genetic amelioration of fruit and vegetable crops to increase biotic and abiotic stress resistance through CRISPR Genome Editing. FRONTIERS IN PLANT SCIENCE 2023; 14:1260102. [PMID: 37841604 PMCID: PMC10570431 DOI: 10.3389/fpls.2023.1260102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 08/28/2023] [Indexed: 10/17/2023]
Abstract
Environmental changes and increasing population are major concerns for crop production and food security as a whole. To address this, researchers had focussed on the improvement of cereals and pulses and have made considerable progress till the beginning of this decade. However, cereals and pulses together, without vegetables and fruits, are inadequate to meet the dietary and nutritional demands of human life. Production of good quality vegetables and fruits is highly challenging owing to their perishable nature and short shelf life as well as abiotic and biotic stresses encountered during pre- and post-harvest. Genetic engineering approaches to produce good quality, to increase shelf life and stress-resistance, and to change the time of flowering and fruit ripening by introducing foreign genes to produce genetically modified crops were quite successful. However, several biosafety concerns, such as the risk of transgene-outcrossing, limited their production, marketing, and consumption. Modern genome editing techniques, like the CRISPR/Cas9 system, provide a perfect solution in this scenario, as it can produce transgene-free genetically edited plants. Hence, these genetically edited plants can easily satisfy the biosafety norms for crop production and consumption. This review highlights the potential of the CRISPR/Cas9 system for the successful generation of abiotic and biotic stress resistance and thereby improving the quality, yield, and overall productivity of vegetables and fruits.
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Affiliation(s)
- Atish Sardar
- Department of Botany, Jogesh Chandra Chaudhuri College, West Bengal, Kolkata, India
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12
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Erdoğan İ, Cevher-Keskin B, Bilir Ö, Hong Y, Tör M. Recent Developments in CRISPR/Cas9 Genome-Editing Technology Related to Plant Disease Resistance and Abiotic Stress Tolerance. BIOLOGY 2023; 12:1037. [PMID: 37508466 PMCID: PMC10376527 DOI: 10.3390/biology12071037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 07/17/2023] [Accepted: 07/19/2023] [Indexed: 07/30/2023]
Abstract
The revolutionary CRISPR/Cas9 genome-editing technology has emerged as a powerful tool for plant improvement, offering unprecedented precision and efficiency in making targeted gene modifications. This powerful and practical approach to genome editing offers tremendous opportunities for crop improvement, surpassing the capabilities of conventional breeding techniques. This article provides an overview of recent advancements and challenges associated with the application of CRISPR/Cas9 in plant improvement. The potential of CRISPR/Cas9 in terms of developing crops with enhanced resistance to biotic and abiotic stresses is highlighted, with examples of genes edited to confer disease resistance, drought tolerance, salt tolerance, and cold tolerance. Here, we also discuss the importance of off-target effects and the efforts made to mitigate them, including the use of shorter single-guide RNAs and dual Cas9 nickases. Furthermore, alternative delivery methods, such as protein- and RNA-based approaches, are explored, and they could potentially avoid the integration of foreign DNA into the plant genome, thus alleviating concerns related to genetically modified organisms (GMOs). We emphasize the significance of CRISPR/Cas9 in accelerating crop breeding processes, reducing editing time and costs, and enabling the introduction of desired traits at the nucleotide level. As the field of genome editing continues to evolve, it is anticipated that CRISPR/Cas9 will remain a prominent tool for crop improvement, disease resistance, and adaptation to challenging environmental conditions.
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Affiliation(s)
- İbrahim Erdoğan
- Department of Agricultural Biotechnology, Faculty of Agriculture, Kirsehir Ahi Evran University, Kırşehir 40100, Türkiye
- Department of Biological Sciences, School of Science and the Environment, University of Worcester, Henwick Grove, Worcester WR2 6AJ, UK
| | - Birsen Cevher-Keskin
- Genetic Engineering and Biotechnology Institute, TÜBİTAK Marmara Research Center, Kocaeli 41470, Türkiye
| | - Özlem Bilir
- Department of Biological Sciences, School of Science and the Environment, University of Worcester, Henwick Grove, Worcester WR2 6AJ, UK
- Trakya Agricultural Research Institute, Atatürk Bulvarı 167/A, Edirne 22100, Türkiye
| | - Yiguo Hong
- Department of Biological Sciences, School of Science and the Environment, University of Worcester, Henwick Grove, Worcester WR2 6AJ, UK
- Research Centre for Plant RNA Signaling, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Mahmut Tör
- Department of Biological Sciences, School of Science and the Environment, University of Worcester, Henwick Grove, Worcester WR2 6AJ, UK
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13
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Thatcher S, Jung M, Panangipalli G, Fengler K, Sanyal A, Li B, Llaca V, Habben J. The NLRomes of Zea mays NAM founder lines and Zea luxurians display presence-absence variation, integrated domain diversity, and mobility. MOLECULAR PLANT PATHOLOGY 2023; 24:742-757. [PMID: 36929631 PMCID: PMC10257044 DOI: 10.1111/mpp.13319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 02/09/2023] [Accepted: 02/14/2023] [Indexed: 06/11/2023]
Abstract
Plant pathogens cause significant crop loss worldwide, and new resistance genes deployed to combat diseases can be overcome quickly. Understanding the existing resistance gene diversity within the germplasm of major crops, such as maize, is crucial for the development of new disease-resistant varieties. We analysed the nucleotide-binding leucine-rich repeat receptors (NLRs) of 26 recently sequenced diverse founder lines from the maize nested association mapping (NAM) population and compared them to the R gene complement present in a wild relative of maize, Zea luxurians. We found that NLRs in both species contain a large diversity of atypical integrated domains, including many domains that have not previously been found in the NLRs of other species. Additionally, the single Z. luxurians genome was found to have greater integrated atypical domain diversity than all 26 NAM founder lines combined, indicating that this species may represent a rich source of novel resistance genes. NLRs were also found to have very high sequence diversity and presence-absence variation among the NAM founder lines, with a large NLR cluster on Chr10 representing a diversity hotspot. Additionally, NLRs were shown to be mobile within maize genomes, with several putative interchromosomal translocations identified.
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14
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Li M, Yang Z, Liu J, Chang C. Wheat Susceptibility Genes TaCAMTA2 and TaCAMTA3 Negatively Regulate Post-Penetration Resistance against Blumeria graminis forma specialis tritici. Int J Mol Sci 2023; 24:10224. [PMID: 37373370 DOI: 10.3390/ijms241210224] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 06/12/2023] [Accepted: 06/14/2023] [Indexed: 06/29/2023] Open
Abstract
Blumeria graminis forma specialis tritici (B.g. tritici) is the airborne fungal pathogen that causes powdery mildew disease on hexaploid bread wheat. Calmodulin-binding transcription activators (CAMTAs) regulate plant responses to environments, but their potential functions in the regulation of wheat-B.g. tritici interaction remain unknown. In this study, the wheat CAMTA transcription factors TaCAMTA2 and TaCAMTA3 were identified as suppressors of wheat post-penetration resistance against powdery mildew. Transient overexpression of TaCAMTA2 and TaCAMTA3 enhanced the post-penetration susceptibility of wheat to B.g. tritici, while knockdown of TaCAMTA2 and TaCAMTA3 expression using transient- or virus-induced gene silencing compromised wheat post-penetration susceptibility to B.g. tritici. In addition, TaSARD1 and TaEDS1 were characterized as positive regulators of wheat post-penetration resistance against powdery mildew. Overexpressing TaSARD1 and TaEDS1 confers wheat post-penetration resistance against B.g. tritici, while silencing TaSARD1 and TaEDS1 enhances wheat post-penetration susceptibility to B.g. tritici. Importantly, we showed that expressions of TaSARD1 and TaEDS1 were potentiated by silencing of TaCAMTA2 and TaCAMTA3. Collectively, these results implicated that the Susceptibility genes TaCAMTA2 and TaCAMTA3 contribute to the wheat-B.g. tritici compatibility might via negative regulation of TaSARD1 and TaEDS1 expression.
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Affiliation(s)
- Mengmeng Li
- College of Life Sciences, Qingdao University, Qingdao 266071, China
| | - Zige Yang
- College of Life Sciences, Qingdao University, Qingdao 266071, China
| | - Jiao Liu
- College of Life Sciences, Qingdao University, Qingdao 266071, China
| | - Cheng Chang
- College of Life Sciences, Qingdao University, Qingdao 266071, China
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15
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Singh C, Kumar R, Sehgal H, Bhati S, Singhal T, Gayacharan, Nimmy MS, Yadav R, Gupta SK, Abdallah NA, Hamwieh A, Kumar R. Unclasping potentials of genomics and gene editing in chickpea to fight climate change and global hunger threat. Front Genet 2023; 14:1085024. [PMID: 37144131 PMCID: PMC10153629 DOI: 10.3389/fgene.2023.1085024] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 03/24/2023] [Indexed: 09/09/2023] Open
Abstract
Genomics and genome editing promise enormous opportunities for crop improvement and elementary research. Precise modification in the specific targeted location of a genome has profited over the unplanned insertional events which are generally accomplished employing unadventurous means of genetic modifications. The advent of new genome editing procedures viz; zinc finger nucleases (ZFNs), homing endonucleases, transcription activator like effector nucleases (TALENs), Base Editors (BEs), and Primer Editors (PEs) enable molecular scientists to modulate gene expressions or create novel genes with high precision and efficiency. However, all these techniques are exorbitant and tedious since their prerequisites are difficult processes that necessitate protein engineering. Contrary to first generation genome modifying methods, CRISPR/Cas9 is simple to construct, and clones can hypothetically target several locations in the genome with different guide RNAs. Following the model of the application in crop with the help of the CRISPR/Cas9 module, various customized Cas9 cassettes have been cast off to advance mark discrimination and diminish random cuts. The present study discusses the progression in genome editing apparatuses, and their applications in chickpea crop development, scientific limitations, and future perspectives for biofortifying cytokinin dehydrogenase, nitrate reductase, superoxide dismutase to induce drought resistance, heat tolerance and higher yield in chickpea to encounter global climate change, hunger and nutritional threats.
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Affiliation(s)
- Charul Singh
- USBT, Guru Govind Singh Indraprastha University, Delhi, India
| | - Ramesh Kumar
- Department of Biochemistry, University of Allahabad Prayagraj, Prayagraj, India
| | - Hansa Sehgal
- Department of Biological Sciences, Birla Institute of Technology and Sciences, Pilani, India
| | - Sharmista Bhati
- School of Biotechnology, Gautam Buddha University, Greater Noida, India
| | - Tripti Singhal
- Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Gayacharan
- Division of Germplasm Evaluation, ICAR- National Bureau of Plant Genetic Resources, New Delhi, India
| | - M. S. Nimmy
- ICAR-National Institute for Plant Biotechnology, New Delhi, India
| | | | | | | | - Aladdin Hamwieh
- The International Center for Agricultural Research in the Dry Areas (ICARDA), Cairo, Egypt
| | - Rajendra Kumar
- Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, India
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16
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He F, Wang C, Sun H, Tian S, Zhao G, Liu C, Wan C, Guo J, Huang X, Zhan G, Yu X, Kang Z, Guo J. Simultaneous editing of three homoeologues of TaCIPK14 confers broad-spectrum resistance to stripe rust in wheat. PLANT BIOTECHNOLOGY JOURNAL 2023; 21:354-368. [PMID: 36326663 PMCID: PMC9884018 DOI: 10.1111/pbi.13956] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Revised: 10/25/2022] [Accepted: 11/01/2022] [Indexed: 05/26/2023]
Abstract
Wheat stripe rust caused by the fungus Puccinia striiformis f. sp. tritici (Pst) is one of the most destructive wheat diseases resulting in significant losses to wheat production worldwide. The development of disease-resistant varieties is the most economical and effective measure to control diseases. Altering the susceptibility genes that promote pathogen compatibility via CRISPR/Cas9-mediated gene editing technology has become a new strategy for developing disease-resistant wheat varieties. Calcineurin B-like protein (CBL)-interacting protein kinases (CIPKs) has been demonstrated to be involved in defence responses during plant-pathogen interactions. However, whether wheat CIPK functions as susceptibility factor is still unclear. Here, we isolated a CIPK homoeologue gene TaCIPK14 from wheat. Knockdown of TaCIPK14 significantly increased wheat resistance to Pst, whereas overexpression of TaCIPK14 resulted in enhanced wheat susceptibility to Pst by decreasing different aspects of the defence response, including accumulation of ROS and expression of pathogenesis-relative genes. We generated wheat Tacipk14 mutant plants by simultaneous modification of the three homoeologues of wheat TaCIPK14 via CRISPR/Cas9 technology. The Tacipk14 mutant lines expressed race-nonspecific (RNS) broad-spectrum resistance (BSR) to Pst. Moreover, no significant difference was found in agronomic yield traits between Tacipk14 mutant plants and Fielder control plants under greenhouse and field conditions. These results demonstrate that TaCIPK14 acts as an important susceptibility factor in wheat response to Pst, and knockout of TaCIPK14 represents a powerful strategy for generating new disease-resistant wheat varieties with BSR to Pst.
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Affiliation(s)
- Fuxin He
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant ProtectionNorthwest A&F UniversityYanglingShaanxiChina
| | - Ce Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant ProtectionNorthwest A&F UniversityYanglingShaanxiChina
| | - Huilin Sun
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant ProtectionNorthwest A&F UniversityYanglingShaanxiChina
| | - Shuxin Tian
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant ProtectionNorthwest A&F UniversityYanglingShaanxiChina
| | - Guosen Zhao
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant ProtectionNorthwest A&F UniversityYanglingShaanxiChina
| | - Cong Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant ProtectionNorthwest A&F UniversityYanglingShaanxiChina
| | - Cuiping Wan
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant ProtectionNorthwest A&F UniversityYanglingShaanxiChina
| | - Jia Guo
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant ProtectionNorthwest A&F UniversityYanglingShaanxiChina
| | - Xueling Huang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant ProtectionNorthwest A&F UniversityYanglingShaanxiChina
| | - Gangming Zhan
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant ProtectionNorthwest A&F UniversityYanglingShaanxiChina
| | - Xiumei Yu
- Technological Innovation Centre for Biological Control of Crop Diseases and Insect Pests of Hebei ProvinceHebei Agricultural UniversityBaodingHebeiChina
| | - Zhensheng Kang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant ProtectionNorthwest A&F UniversityYanglingShaanxiChina
| | - Jun Guo
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant ProtectionNorthwest A&F UniversityYanglingShaanxiChina
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17
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Huang Y, Liu J, Li J, Shan X, Duan Y. Endophytic bacterium Pseudomonas protegens suppresses mycelial growth of Botryosphaeria dothidea and decreases its pathogenicity to postharvest fruits. Front Microbiol 2022; 13:1069517. [PMID: 36569085 PMCID: PMC9771998 DOI: 10.3389/fmicb.2022.1069517] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 11/18/2022] [Indexed: 12/12/2022] Open
Abstract
Apple (Malus domestica Borkh.), one of the most economically important fruits widely consumed worldwide, has been suffering from apple ring rot caused by Botryosphaeria dothidea, which dramatically affects its quality and yield. In the present study, we demonstrated that Pseudomonas protegens, isolated from Chinese leek (Allium tuberosum), significantly suppressed the mycelial growth and propagation of B. dothidea, respectively, further displayed a considerably inhibitory effect on the apple ring rot of postharvest fruits. In addition, P. protegens significantly improved the total soluble solid/titrable acidity (TSS/TA) ratio and soluble sugar/titrable acidity (SS/TA) ratio and drastically maintained the fruit firmness. Further analysis manifested that P. protegens substantially induced the defense-related genes such as MdGLU, MdPAL, MdPOD, MdCAL, and transcription factors related to the resistance to B. dothidea, including MdWRKY15, MdPUB29, MdMyb73, and MdERF11 in apple fruits. Meanwhile, P. protegens considerably restrained the expressions of the pathogenicity-related genes in B. dothidea, including the BdCYP450, BdADH, BdGHY, BdATS, Bdα/β-HY, and BdSTR. By inference, P. protegens inhibited the apple ring rot on postharvest fruits by activating the defense system of apple fruit and repressing the pathogenic factor of B. dothidea. The study provided a theoretical basis and a potential alternative to manage the apple ring rot on postharvest fruits.
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Affiliation(s)
- Yonghong Huang
- College of Horticulture, Qingdao Agricultural University, Qingdao, China,Laboratory of Quality and Safety Risk Assessment for Fruit, Ministry of Agriculture and Rural Affairs, Qingdao, China,National Technology Centre for Whole Process Quality Control of FSEN Horticultural Products, Qingdao, China,Qingdao Key Laboratory of Modern Agriculture Quality and Safety Engineering, Qingdao, China,*Correspondence: Yonghong Huang,
| | - Junping Liu
- College of Horticulture, Qingdao Agricultural University, Qingdao, China,Laboratory of Quality and Safety Risk Assessment for Fruit, Ministry of Agriculture and Rural Affairs, Qingdao, China,National Technology Centre for Whole Process Quality Control of FSEN Horticultural Products, Qingdao, China,Qingdao Key Laboratory of Modern Agriculture Quality and Safety Engineering, Qingdao, China
| | - Jinghui Li
- College of Horticulture, Qingdao Agricultural University, Qingdao, China,Laboratory of Quality and Safety Risk Assessment for Fruit, Ministry of Agriculture and Rural Affairs, Qingdao, China,National Technology Centre for Whole Process Quality Control of FSEN Horticultural Products, Qingdao, China,Qingdao Key Laboratory of Modern Agriculture Quality and Safety Engineering, Qingdao, China
| | - Xiaoying Shan
- College of Horticulture, Qingdao Agricultural University, Qingdao, China,Laboratory of Quality and Safety Risk Assessment for Fruit, Ministry of Agriculture and Rural Affairs, Qingdao, China,National Technology Centre for Whole Process Quality Control of FSEN Horticultural Products, Qingdao, China,Qingdao Key Laboratory of Modern Agriculture Quality and Safety Engineering, Qingdao, China
| | - Yanxin Duan
- College of Horticulture, Qingdao Agricultural University, Qingdao, China,Laboratory of Quality and Safety Risk Assessment for Fruit, Ministry of Agriculture and Rural Affairs, Qingdao, China,National Technology Centre for Whole Process Quality Control of FSEN Horticultural Products, Qingdao, China,Qingdao Key Laboratory of Modern Agriculture Quality and Safety Engineering, Qingdao, China,Yanxin Duan,
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18
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Wang Y, Zafar N, Ali Q, Manghwar H, Wang G, Yu L, Ding X, Ding F, Hong N, Wang G, Jin S. CRISPR/Cas Genome Editing Technologies for Plant Improvement against Biotic and Abiotic Stresses: Advances, Limitations, and Future Perspectives. Cells 2022; 11:3928. [PMID: 36497186 PMCID: PMC9736268 DOI: 10.3390/cells11233928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 11/28/2022] [Accepted: 12/01/2022] [Indexed: 12/12/2022] Open
Abstract
Crossbreeding, mutation breeding, and traditional transgenic breeding take much time to improve desirable characters/traits. CRISPR/Cas-mediated genome editing (GE) is a game-changing tool that can create variation in desired traits, such as biotic and abiotic resistance, increase quality and yield in less time with easy applications, high efficiency, and low cost in producing the targeted edits for rapid improvement of crop plants. Plant pathogens and the severe environment cause considerable crop losses worldwide. GE approaches have emerged and opened new doors for breeding multiple-resistance crop varieties. Here, we have summarized recent advances in CRISPR/Cas-mediated GE for resistance against biotic and abiotic stresses in a crop molecular breeding program that includes the modification and improvement of genes response to biotic stresses induced by fungus, virus, and bacterial pathogens. We also discussed in depth the application of CRISPR/Cas for abiotic stresses (herbicide, drought, heat, and cold) in plants. In addition, we discussed the limitations and future challenges faced by breeders using GE tools for crop improvement and suggested directions for future improvements in GE for agricultural applications, providing novel ideas to create super cultivars with broad resistance to biotic and abiotic stress.
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Affiliation(s)
- Yaxin Wang
- Hubei Key Laboratory of Plant Pathology, Huazhong Agricultural University, Wuhan 430070, China
- Hubei Hongshan Laboratory, National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China
| | - Naeem Zafar
- Hubei Hongshan Laboratory, National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China
| | - Qurban Ali
- Hubei Key Laboratory of Plant Pathology, Huazhong Agricultural University, Wuhan 430070, China
| | - Hakim Manghwar
- Hubei Hongshan Laboratory, National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China
| | - Guanying Wang
- Hubei Hongshan Laboratory, National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China
| | - Lu Yu
- Hubei Hongshan Laboratory, National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China
| | - Xiao Ding
- Hubei Hongshan Laboratory, National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China
| | - Fang Ding
- Hubei Key Laboratory of Plant Pathology, Huazhong Agricultural University, Wuhan 430070, China
| | - Ni Hong
- Hubei Key Laboratory of Plant Pathology, Huazhong Agricultural University, Wuhan 430070, China
| | - Guoping Wang
- Hubei Key Laboratory of Plant Pathology, Huazhong Agricultural University, Wuhan 430070, China
| | - Shuangxia Jin
- Hubei Hongshan Laboratory, National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China
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19
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Transgenic Improvement for Biotic Resistance of Crops. Int J Mol Sci 2022; 23:ijms232214370. [PMID: 36430848 PMCID: PMC9697442 DOI: 10.3390/ijms232214370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 11/15/2022] [Accepted: 11/17/2022] [Indexed: 11/22/2022] Open
Abstract
Biotic constraints, including pathogenic fungi, viruses and bacteria, herbivory insects, as well as parasitic nematodes, cause significant yield loss and quality deterioration of crops. The effect of conventional management of these biotic constraints is limited. The advances in transgenic technologies provide a direct and directional approach to improve crops for biotic resistance. More than a hundred transgenic events and hundreds of cultivars resistant to herbivory insects, pathogenic viruses, and fungi have been developed by the heterologous expression of exogenous genes and RNAi, authorized for cultivation and market, and resulted in a significant reduction in yield loss and quality deterioration. However, the exploration of transgenic improvement for resistance to bacteria and nematodes by overexpression of endogenous genes and RNAi remains at the testing stage. Recent advances in RNAi and CRISPR/Cas technologies open up possibilities to improve the resistance of crops to pathogenic bacteria and plant parasitic nematodes, as well as other biotic constraints.
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20
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Robertson G, Burger J, Campa M. CRISPR/Cas-based tools for the targeted control of plant viruses. MOLECULAR PLANT PATHOLOGY 2022; 23:1701-1718. [PMID: 35920132 PMCID: PMC9562834 DOI: 10.1111/mpp.13252] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 06/09/2022] [Accepted: 07/01/2022] [Indexed: 05/15/2023]
Abstract
Plant viruses are known to infect most economically important crops and pose a major threat to global food security. Currently, few resistant host phenotypes have been delineated, and while chemicals are used for crop protection against insect pests and bacterial or fungal diseases, these are inefficient against viral diseases. Genetic engineering emerged as a way of modifying the plant genome by introducing functional genes in plants to improve crop productivity under adverse environmental conditions. Recently, new breeding technologies, and in particular the exciting CRISPR/Cas (clustered regularly interspaced short palindromic repeats/CRISPR-associated proteins) technology, was shown to be a powerful alternative to engineer resistance against plant viruses, thus has great potential for reducing crop losses and improving plant productivity to directly contribute to food security. Indeed, it could circumvent the "Genetic modification" issues because it allows for genome editing without the integration of foreign DNA or RNA into the genome of the host plant, and it is simpler and more versatile than other new breeding technologies. In this review, we describe the predominant features of the major CRISPR/Cas systems and outline strategies for the delivery of CRISPR/Cas reagents to plant cells. We also provide an overview of recent advances that have engineered CRISPR/Cas-based resistance against DNA and RNA viruses in plants through the targeted manipulation of either the viral genome or susceptibility factors of the host plant genome. Finally, we provide insight into the limitations and challenges that CRISPR/Cas technology currently faces and discuss a few alternative applications of the technology in virus research.
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Affiliation(s)
- Gaëlle Robertson
- Department of GeneticsStellenbosch UniversityMatielandSouth Africa
- Department of Experimental and Health SciencesUniversitat Pompeu FabraBarcelonaSpain
| | - Johan Burger
- Department of GeneticsStellenbosch UniversityMatielandSouth Africa
| | - Manuela Campa
- Department of GeneticsStellenbosch UniversityMatielandSouth Africa
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21
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Sun Q, Xu Z, Huang W, Li D, Zeng Q, Chen L, Li B, Zhang E. Integrated metabolome and transcriptome analysis reveals salicylic acid and flavonoid pathways' key roles in cabbage's defense responses to Xanthomonas campestris pv. campestris. FRONTIERS IN PLANT SCIENCE 2022; 13:1005764. [PMID: 36388482 PMCID: PMC9659849 DOI: 10.3389/fpls.2022.1005764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 10/12/2022] [Indexed: 06/16/2023]
Abstract
Xanthomonas campestris pv. campestris (Xcc) is a vascular bacteria pathogen causing black rot in cabbage. Here, the resistance mechanisms of cabbage against Xcc infection were explored by integrated metabolome and transcriptome analysis. Pathogen perception, hormone metabolisms, sugar metabolisms, and phenylpropanoid metabolisms in cabbage were systemically re-programmed at both transcriptional and metabolic levels after Xcc infection. Notably, the salicylic acid (SA) metabolism pathway was highly enriched in resistant lines following Xcc infection, indicating that the SA metabolism pathway may positively regulate the resistance of Xcc. Moreover, we also validated our hypothesis by showing that the flavonoid pathway metabolites chlorogenic acid and caffeic acid could effectively inhibit the growth of Xcc. These findings provide valuable insights and resource datasets for further exploring Xcc-cabbage interactions and help uncover molecular breeding targets for black rot-resistant varieties in cabbage.
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Affiliation(s)
| | | | | | | | | | | | - Baohua Li
- *Correspondence: Baohua Li, ; Enhui Zhang,
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22
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Hamdan MF, Karlson CKS, Teoh EY, Lau SE, Tan BC. Genome Editing for Sustainable Crop Improvement and Mitigation of Biotic and Abiotic Stresses. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11192625. [PMID: 36235491 PMCID: PMC9573444 DOI: 10.3390/plants11192625] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 09/22/2022] [Accepted: 09/30/2022] [Indexed: 05/05/2023]
Abstract
Climate change poses a serious threat to global agricultural activity and food production. Plant genome editing technologies have been widely used to develop crop varieties with superior qualities or can tolerate adverse environmental conditions. Unlike conventional breeding techniques (e.g., selective breeding and mutation breeding), modern genome editing tools offer more targeted and specific alterations of the plant genome and could significantly speed up the progress of developing crops with desired traits, such as higher yield and/or stronger resilience to the changing environment. In this review, we discuss the current development and future applications of genome editing technologies in mitigating the impacts of biotic and abiotic stresses on agriculture. We focus specifically on the CRISPR/Cas system, which has been the center of attention in the last few years as a revolutionary genome-editing tool in various species. We also conducted a bibliographic analysis on CRISPR-related papers published from 2012 to 2021 (10 years) to identify trends and potential in the CRISPR/Cas-related plant research. In addition, this review article outlines the current shortcomings and challenges of employing genome editing technologies in agriculture with notes on future prospective. We believe combining conventional and more innovative technologies in agriculture would be the key to optimizing crop improvement beyond the limitations of traditional agricultural practices.
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Affiliation(s)
- Mohd Fadhli Hamdan
- Centre for Research in Biotechnology for Agriculture, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Chou Khai Soong Karlson
- Centre for Research in Biotechnology for Agriculture, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Ee Yang Teoh
- Centre for Research in Biotechnology for Agriculture, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Su-Ee Lau
- Centre for Research in Biotechnology for Agriculture, Universiti Malaya, Kuala Lumpur 50603, Malaysia
- Department of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia
| | - Boon Chin Tan
- Centre for Research in Biotechnology for Agriculture, Universiti Malaya, Kuala Lumpur 50603, Malaysia
- Correspondence: ; Tel.: +60-3-7967-7982
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23
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Cheng C, Kan J, Li S, Jiang C, He X, Shen H, Xu R, Li B, Feng Z, Yang P. Mutation of barley HvPDIL5-1 improves resistance to yellow mosaic virus disease without growth or yield penalties. FRONTIERS IN PLANT SCIENCE 2022; 13:1018379. [PMID: 36275526 PMCID: PMC9583009 DOI: 10.3389/fpls.2022.1018379] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Accepted: 09/20/2022] [Indexed: 06/15/2023]
Abstract
The soil-borne yellow mosaic virus disease, which is caused by the bymoviruses barley yellow mosaic virus (BaYMV) and/or barley mild mosaic virus (BaMMV), seriously threatens winter barley production in Europe and East Asia. Both viruses are transmitted by the soil-borne plasmodiophorid Polymyxa graminis and are difficult to eliminate through chemical or physical measures in the field, making breeding for resistant cultivars the optimal strategy for disease control. The resistance locus rym1/11 was cloned encoding the host factor gene Protein Disulfide Isomerase Like 5-1 (PDIL5-1), whose loss-of-function variants confer broad-spectrum resistance to multiple strains of BaMMV/BaYMV. Most resistance-conferring variants have been identified in six-rowed barley landraces/historic cultivars, and their introgression into modern two-rowed malting cultivars is difficult because PDIL5-1 is located in a peri-centromeric region with suppressed recombination. In this study, we used CRISPR/Cas9 genome editing to modify PDIL5-1 in the BaYMV/BaMMV-susceptible elite malting barley cv. 'Golden Promise' and obtained the mutants pdil5-1-a and pdil5-1-b. PDIL5-1 in the pdil5-1-a mutant encodes a protein lacking a cysteine residue, and pdil5-1-b contains a protein-coding frameshift. Both mutants were completely resistant to BaYMV. The knockout mutant pdil5-1-b showed complete BaMMV resistance, while pdil5-1-a showed decreased viral accumulation but no disease symptoms if compared to 'Golden Promise'. Both PDIL5-1 edited lines, as well as the previously produced EMS-induced pdil5-1 mutant '10253-1-5' in the elite malting barley cv. 'Barke' background, displayed no growth or yield penalties in garden experiments or bymovirus-free field trials. Line '10253-1-5' showed improved resistance and yield performance compared to the wild-type and its sibling line when grown in infectious fields. Therefore, genome editing of the host factor gene PDIL5-1 could facilitate the breeding of barley varieties with resistance to bymoviruses.
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Affiliation(s)
- Chunyuan Cheng
- College of Agronomy, Qingdao Agricultural University, Qingdao, China
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jinhong Kan
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Shanshan Li
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
- College of Agronomy, Sichuan Agricultural University, Chengdu, China
| | - Congcong Jiang
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xiaoyan He
- College of Agronomy, Qingdao Agricultural University, Qingdao, China
| | - Huiquan Shen
- Institute of Agricultural Science in Jiangsu Coastal Areas, Yancheng, China
| | - Rugen Xu
- College of Agronomy, Yangzhou University, Yangzhou, China
| | - Boqun Li
- Special Crops Institute, Chongqing Academy of Agricultural Sciences, Chongqing, China
| | - Zongyun Feng
- College of Agronomy, Sichuan Agricultural University, Chengdu, China
| | - Ping Yang
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
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Hamdan MF, Karlson CKS, Teoh EY, Lau SE, Tan BC. Genome Editing for Sustainable Crop Improvement and Mitigation of Biotic and Abiotic Stresses. PLANTS (BASEL, SWITZERLAND) 2022. [PMID: 36235491 DOI: 10.1007/s44187-022-00009-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Climate change poses a serious threat to global agricultural activity and food production. Plant genome editing technologies have been widely used to develop crop varieties with superior qualities or can tolerate adverse environmental conditions. Unlike conventional breeding techniques (e.g., selective breeding and mutation breeding), modern genome editing tools offer more targeted and specific alterations of the plant genome and could significantly speed up the progress of developing crops with desired traits, such as higher yield and/or stronger resilience to the changing environment. In this review, we discuss the current development and future applications of genome editing technologies in mitigating the impacts of biotic and abiotic stresses on agriculture. We focus specifically on the CRISPR/Cas system, which has been the center of attention in the last few years as a revolutionary genome-editing tool in various species. We also conducted a bibliographic analysis on CRISPR-related papers published from 2012 to 2021 (10 years) to identify trends and potential in the CRISPR/Cas-related plant research. In addition, this review article outlines the current shortcomings and challenges of employing genome editing technologies in agriculture with notes on future prospective. We believe combining conventional and more innovative technologies in agriculture would be the key to optimizing crop improvement beyond the limitations of traditional agricultural practices.
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Affiliation(s)
- Mohd Fadhli Hamdan
- Centre for Research in Biotechnology for Agriculture, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Chou Khai Soong Karlson
- Centre for Research in Biotechnology for Agriculture, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Ee Yang Teoh
- Centre for Research in Biotechnology for Agriculture, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Su-Ee Lau
- Centre for Research in Biotechnology for Agriculture, Universiti Malaya, Kuala Lumpur 50603, Malaysia
- Department of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia
| | - Boon Chin Tan
- Centre for Research in Biotechnology for Agriculture, Universiti Malaya, Kuala Lumpur 50603, Malaysia
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25
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Karmakar S, Das P, Panda D, Xie K, Baig MJ, Molla KA. A detailed landscape of CRISPR-Cas-mediated plant disease and pest management. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2022; 323:111376. [PMID: 35835393 DOI: 10.1016/j.plantsci.2022.111376] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 07/06/2022] [Accepted: 07/07/2022] [Indexed: 06/15/2023]
Abstract
Genome editing technology has rapidly evolved to knock-out genes, create targeted genetic variation, install precise insertion/deletion and single nucleotide changes, and perform large-scale alteration. The flexible and multipurpose editing technologies have started playing a substantial role in the field of plant disease management. CRISPR-Cas has reduced many limitations of earlier technologies and emerged as a versatile toolbox for genome manipulation. This review summarizes the phenomenal progress of the use of the CRISPR toolkit in the field of plant pathology. CRISPR-Cas toolbox aids in the basic studies on host-pathogen interaction, in identifying virulence genes in pathogens, deciphering resistance and susceptibility factors in host plants, and engineering host genome for developing resistance. We extensively reviewed the successful genome editing applications for host plant resistance against a wide range of biotic factors, including viruses, fungi, oomycetes, bacteria, nematodes, insect pests, and parasitic plants. Recent use of CRISPR-Cas gene drive to suppress the population of pathogens and pests has also been discussed. Furthermore, we highlight exciting new uses of the CRISPR-Cas system as diagnostic tools, which rapidly detect pathogenic microorganism. This comprehensive yet concise review discusses innumerable strategies to reduce the burden of crop protection.
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Affiliation(s)
| | - Priya Das
- ICAR-National Rice Research Institute, Cuttack 753006, India
| | - Debasmita Panda
- ICAR-National Rice Research Institute, Cuttack 753006, India
| | - Kabin Xie
- National Key Laboratory of Crop Genetic Improvement and Hubei Key Laboratory of Plant Pathology, Huazhong Agricultural University, Wuhan 430070, China
| | - Mirza J Baig
- ICAR-National Rice Research Institute, Cuttack 753006, India.
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26
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Increasing disease resistance in host plants through genome editing. PROCEEDINGS OF THE INDIAN NATIONAL SCIENCE ACADEMY 2022. [DOI: 10.1007/s43538-022-00100-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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27
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Hillary VE, Ceasar SA. Prime editing in plants and mammalian cells: Mechanism, achievements, limitations, and future prospects. Bioessays 2022; 44:e2200032. [PMID: 35750651 DOI: 10.1002/bies.202200032] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Revised: 06/13/2022] [Accepted: 06/14/2022] [Indexed: 01/06/2023]
Abstract
Clustered, regularly interspaced, short palindromic repeat (CRISPR)/CRISPR-associated protein (CRISPR/Cas) system has revolutionized genetic research in the life sciences. Four classes of CRISPR/Cas-derived genome editing agents, such as nuclease, base editor, recombinase, and prime editor have been introduced for engineering the genomes of diverse organisms. The recently introduced prime editing system offers precise editing without many off-target effects than traditional CRISPR-based systems. Many researchers have successfully applied this gene-editing toolbox in diverse systems for various genome-editing applications. This review presents the mechanism of prime editing and summarizes the details of the prime editing system applied in plants and mammalian cells for precise genome editing. We also discuss the advantages, limitations, and potential future applications of prime editing in these systems. This review enables the researcher to gain knowledge on prime editing tools and their potential applications in plants and mammalian cells.
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Affiliation(s)
- V Edwin Hillary
- Department of Biosciences, Rajagiri College of Social Sciences, Cochin, Kerala, India
| | - S Antony Ceasar
- Department of Biosciences, Rajagiri College of Social Sciences, Cochin, Kerala, India
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28
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Das D, Singha DL, Paswan RR, Chowdhury N, Sharma M, Reddy PS, Chikkaputtaiah C. Recent advancements in CRISPR/Cas technology for accelerated crop improvement. PLANTA 2022; 255:109. [PMID: 35460444 DOI: 10.1007/s00425-022-03894-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 03/29/2022] [Indexed: 06/14/2023]
Abstract
Precise genome engineering approaches could be perceived as a second paradigm for targeted trait improvement in crop plants, with the potential to overcome the constraints imposed by conventional CRISPR/Cas technology. The likelihood of reduced agricultural production due to highly turbulent climatic conditions increases as the global population expands. The second paradigm of stress-resilient crops with enhanced tolerance and increased productivity against various stresses is paramount to support global production and consumption equilibrium. Although traditional breeding approaches have substantially increased crop production and yield, effective strategies are anticipated to restore crop productivity even further in meeting the world's increasing food demands. CRISPR/Cas, which originated in prokaryotes, has surfaced as a coveted genome editing tool in recent decades, reshaping plant molecular biology in unprecedented ways and paving the way for engineering stress-tolerant crops. CRISPR/Cas is distinguished by its efficiency, high target specificity, and modularity, enables precise genetic modification of crop plants, allowing for the creation of allelic variations in the germplasm and the development of novel and more productive agricultural practices. Additionally, a slew of advanced biotechnologies premised on the CRISPR/Cas methodologies have augmented fundamental research and plant synthetic biology toolkits. Here, we describe gene editing tools, including CRISPR/Cas and its imitative tools, such as base and prime editing, multiplex genome editing, chromosome engineering followed by their implications in crop genetic improvement. Further, we comprehensively discuss the latest developments of CRISPR/Cas technology including CRISPR-mediated gene drive, tissue-specific genome editing, dCas9 mediated epigenetic modification and programmed self-elimination of transgenes in plants. Finally, we highlight the applicability and scope of advanced CRISPR-based techniques in crop genetic improvement.
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Affiliation(s)
- Debajit Das
- Biological Sciences and Technology Division, CSIR-North East Institute of Science and Technology (CSIR-NEIST), Jorhat, Assam, 785006, India
| | - Dhanawantari L Singha
- Biological Sciences and Technology Division, CSIR-North East Institute of Science and Technology (CSIR-NEIST), Jorhat, Assam, 785006, India
| | - Ricky Raj Paswan
- Department of Agricultural Biotechnology, Assam Agricultural University, Jorhat, Assam, 785013, India
| | - Naimisha Chowdhury
- Biological Sciences and Technology Division, CSIR-North East Institute of Science and Technology (CSIR-NEIST), Jorhat, Assam, 785006, India
| | - Monica Sharma
- Biological Sciences and Technology Division, CSIR-North East Institute of Science and Technology (CSIR-NEIST), Jorhat, Assam, 785006, India
| | - Palakolanu Sudhakar Reddy
- International Crop Research Institute for the Semi Arid Tropics (ICRISAT), Patancheru, Hyderabad, 502 324, India
| | - Channakeshavaiah Chikkaputtaiah
- Biological Sciences and Technology Division, CSIR-North East Institute of Science and Technology (CSIR-NEIST), Jorhat, Assam, 785006, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201 002, India.
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29
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Tripathi L, Ntui VO, Tripathi JN. Control of Bacterial Diseases of Banana Using CRISPR/Cas-Based Gene Editing. Int J Mol Sci 2022; 23:3619. [PMID: 35408979 PMCID: PMC8998688 DOI: 10.3390/ijms23073619] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 03/22/2022] [Accepted: 03/22/2022] [Indexed: 12/30/2022] Open
Abstract
Banana is an important staple food crop and a source of income for smallholder farmers in about 150 tropical and sub-tropical countries. Several bacterial diseases, such as banana Xanthomonas wilt (BXW), blood, and moko disease, cause substantial impacts on banana production. There is a vast yield gap in the production of bananas in regions where bacterial pathogens and several other pathogens and pests are present together in the same field. BXW disease caused by Xanthomonas campestris pv. musacearum is reported to be the most destructive banana disease in East Africa. The disease affects all the banana varieties grown in the region. Only the wild-type diploid banana, Musa balbisiana, is resistant to BXW disease. Developing disease-resistant varieties of bananas is one of the most effective strategies to manage diseases. Recent advances in CRISPR/Cas-based gene editing techniques can accelerate banana improvement. Some progress has been made to create resistance against bacterial pathogens using CRISPR/Cas9-mediated gene editing by knocking out the disease-causing susceptibility (S) genes or activating the expression of the plant defense genes. A synopsis of recent advancements and perspectives on the application of gene editing for the control of bacterial wilt diseases are presented in this article.
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Affiliation(s)
- Leena Tripathi
- International Institute of Tropical Agriculture (IITA), Nairobi P.O. Box 30709-00100, Kenya; (V.O.N.); (J.N.T.)
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Sharma SK, Gupta OP, Pathaw N, Sharma D, Maibam A, Sharma P, Sanasam J, Karkute SG, Kumar S, Bhattacharjee B. CRISPR-Cas-Led Revolution in Diagnosis and Management of Emerging Plant Viruses: New Avenues Toward Food and Nutritional Security. Front Nutr 2022; 8:751512. [PMID: 34977113 PMCID: PMC8716883 DOI: 10.3389/fnut.2021.751512] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Accepted: 10/31/2021] [Indexed: 12/14/2022] Open
Abstract
Plant viruses pose a serious threat to agricultural production systems worldwide. The world's population is expected to reach the 10-billion mark by 2057. Under the scenario of declining cultivable land and challenges posed by rapidly emerging and re-emerging plant pathogens, conventional strategies could not accomplish the target of keeping pace with increasing global food demand. Gene-editing techniques have recently come up as promising options to enable precise changes in genomes with greater efficiency to achieve the target of higher crop productivity. Of genome engineering tools, clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated (Cas) proteins have gained much popularity, owing to their simplicity, reproducibility, and applicability in a wide range of species. Also, the application of different Cas proteins, such as Cas12a, Cas13a, and Cas9 nucleases, has enabled the development of more robust strategies for the engineering of antiviral mechanisms in many plant species. Recent studies have revealed the use of various CRISPR-Cas systems to either directly target a viral gene or modify a host genome to develop viral resistance in plants. This review provides a comprehensive record of the use of the CRISPR-Cas system in the development of antiviral resistance in plants and discusses its applications in the overall enhancement of productivity and nutritional landscape of cultivated plant species. Furthermore, the utility of this technique for the detection of various plant viruses could enable affordable and precise in-field or on-site detection. The futuristic potential of CRISPR-Cas technologies and possible challenges with their use and application are highlighted. Finally, the future of CRISPR-Cas in sustainable management of viral diseases, and its practical utility and regulatory guidelines in different parts of the globe are discussed systematically.
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Affiliation(s)
| | - Om Prakash Gupta
- Division of Quality & Basic Science, ICAR-Indian Institute of Wheat and Barley Research, Karnal, India
| | - Neeta Pathaw
- ICAR Research Complex for NEH Region, Manipur Centre, Imphal, India
| | - Devender Sharma
- Crop Improvement Division, ICAR-Vivekananda Parvatiya Krishi Anusandhan Sansthan, Almora, India
| | - Albert Maibam
- ICAR Research Complex for NEH Region, Manipur Centre, Imphal, India
| | - Parul Sharma
- Department of Plant Breeding and Genetics, Punjab Agricultural University, Ludhiana, India
| | - Jyotsana Sanasam
- ICAR Research Complex for NEH Region, Manipur Centre, Imphal, India
| | - Suhas Gorakh Karkute
- Division of Crop Improvement, ICAR-Indian Institute of Vegetable Research, Varanasi, India
| | - Sandeep Kumar
- Department of Plant Pathology, Odisha University of Agriculture & Technology, Bhubaneswar, India
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31
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Wong ACS, Massel K, Lam Y, Hintzsche J, Chauhan BS. Biotechnological Road Map for Innovative Weed Management. FRONTIERS IN PLANT SCIENCE 2022; 13:887723. [PMID: 35548307 PMCID: PMC9082642 DOI: 10.3389/fpls.2022.887723] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 04/07/2022] [Indexed: 05/07/2023]
Abstract
In most agriculture farmlands, weed management is predominantly reliant on integrated weed management (IWM) strategies, such as herbicide application. However, the overuse and misuse of herbicides, coupled with the lack of novel active ingredients, has resulted in the uptrend of herbicide-resistant weeds globally. Moreover, weedy traits that contribute to weed seed bank persistence further exacerbate the challenges in weed management. Despite ongoing efforts in identifying and improving current weed management processes, the pressing need for novel control techniques in agricultural weed management should not be overlooked. The advent of CRISPR/Cas9 gene-editing systems, coupled with the recent advances in "omics" and cheaper sequencing technologies, has brought into focus the potential of managing weeds in farmlands through direct genetic control approaches, but could be achieved stably or transiently. These approaches encompass a range of technologies that could potentially manipulate expression of key genes in weeds to reduce its fitness and competitiveness, or, by altering the crop to improve its competitiveness or herbicide tolerance. The push for reducing or circumventing the use of chemicals in farmlands has provided an added incentive to develop practical and feasible molecular approaches for weed management, although there are significant technical, practical, and regulatory challenges for utilizing these prospective molecular technologies in weed management.
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Affiliation(s)
- Albert Chern Sun Wong
- Centre for Crop Science, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Brisbane, QLD, Australia
- *Correspondence: Albert Chern Sun Wong,
| | - Karen Massel
- Centre for Crop Science, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Brisbane, QLD, Australia
| | - Yasmine Lam
- Centre for Crop Science, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Brisbane, QLD, Australia
| | - Jessica Hintzsche
- Centre for Crop Science, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Brisbane, QLD, Australia
| | - Bhagirath Singh Chauhan
- Centre for Crop Science, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Gatton, QLD, Australia
- School of Agriculture and Food Sciences, The University of Queensland, Gatton, QLD, Australia
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32
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Understanding the Various Strategies for the Management of Fungal Pathogens in Crop Plants in the Current Scenario. Fungal Biol 2022. [DOI: 10.1007/978-981-16-8877-5_25] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Samin OB, Omar M, Mansoor M. CapPlant: a capsule network based framework for plant disease classification. PeerJ Comput Sci 2021; 7:e752. [PMID: 34805506 PMCID: PMC8576552 DOI: 10.7717/peerj-cs.752] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 09/29/2021] [Indexed: 06/13/2023]
Abstract
Accurate disease classification in plants is important for a profound understanding of their growth and health. Recognizing diseases in plants from images is one of the critical and challenging problem in agriculture. In this research, a deep learning architecture model (CapPlant) is proposed that utilizes plant images to predict whether it is healthy or contain some disease. The prediction process does not require handcrafted features; rather, the representations are automatically extracted from input data sequence by architecture. Several convolutional layers are applied to extract and classify features accordingly. The last convolutional layer in CapPlant is replaced by state-of-the-art capsule layer to incorporate orientational and relative spatial relationship between different entities of a plant in an image to predict diseases more precisely. The proposed architecture is tested on the PlantVillage dataset, which contains more than 50,000 images of infected and healthy plants. Significant improvements in terms of prediction accuracy has been observed using the CapPlant model when compared with other plant disease classification models. The experimental results on the developed model have achieved an overall test accuracy of 93.01%, with F1 score of 93.07%.
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Affiliation(s)
- Omar Bin Samin
- Center for Excellence in IT, Institute of Management Sciences (IMSciences), Peshawar, Peshawar, Pakistan
| | - Maryam Omar
- Computer Science Department, National University of Computer and Emerging Sciences, Islamabad, Peshawar, Pakistan
| | - Musadaq Mansoor
- Center for Excellence in IT, Institute of Management Sciences (IMSciences), Peshawar, Peshawar, Pakistan
- Computer Science Department, National University of Computer and Emerging Sciences, Islamabad, Peshawar, Pakistan
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34
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Li X, Han R, Gong WY, Wang XL, Zhang XJ. Investigation of Wheat ERF Family Revealed Novel Genes Involved in Powdery Mildew Responses. RUSS J GENET+ 2021. [DOI: 10.1134/s1022795421090064] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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35
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Paul NC, Park SW, Liu H, Choi S, Ma J, MacCready JS, Chilvers MI, Sang H. Plant and Fungal Genome Editing to Enhance Plant Disease Resistance Using the CRISPR/Cas9 System. FRONTIERS IN PLANT SCIENCE 2021; 12:700925. [PMID: 34447401 PMCID: PMC8382960 DOI: 10.3389/fpls.2021.700925] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 06/30/2021] [Indexed: 05/10/2023]
Abstract
Crop production has been substantially reduced by devastating fungal and oomycete pathogens, and these pathogens continue to threaten global food security. Although chemical and cultural controls have been used for crop protection, these involve continuous costs and time and fungicide resistance among plant pathogens has been increasingly reported. The most efficient way to protect crops from plant pathogens is cultivation of disease-resistant cultivars. However, traditional breeding approaches are laborious and time intensive. Recently, the CRISPR/Cas9 system has been utilized to enhance disease resistance among different crops such as rice, cacao, wheat, tomato, and grape. This system allows for precise genome editing of various organisms via RNA-guided DNA endonuclease activity. Beyond genome editing in crops, editing the genomes of fungal and oomycete pathogens can also provide new strategies for plant disease management. This review focuses on the recent studies of plant disease resistance against fungal and oomycete pathogens using the CRISPR/Cas9 system. For long-term plant disease management, the targeting of multiple plant disease resistance mechanisms with CRISPR/Cas9 and insights gained by probing fungal and oomycete genomes with this system will be powerful approaches.
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Affiliation(s)
- Narayan Chandra Paul
- Department of Integrative Food, Bioscience and Biotechnology, Chonnam National University, Gwangju, South Korea
- Kumho Life Science Laboratory, Chonnam National University, Gwangju, South Korea
| | - Sung-Won Park
- Department of Integrative Food, Bioscience and Biotechnology, Chonnam National University, Gwangju, South Korea
| | - Haifeng Liu
- Department of Integrative Food, Bioscience and Biotechnology, Chonnam National University, Gwangju, South Korea
| | - Sungyu Choi
- Department of Integrative Food, Bioscience and Biotechnology, Chonnam National University, Gwangju, South Korea
| | - Jihyeon Ma
- Department of Integrative Food, Bioscience and Biotechnology, Chonnam National University, Gwangju, South Korea
| | - Joshua S. MacCready
- Department of Plant, Soil and Microbial Sciences, Michigan State University, East Lansing, MI, United States
| | - Martin I. Chilvers
- Department of Plant, Soil and Microbial Sciences, Michigan State University, East Lansing, MI, United States
| | - Hyunkyu Sang
- Department of Integrative Food, Bioscience and Biotechnology, Chonnam National University, Gwangju, South Korea
- Kumho Life Science Laboratory, Chonnam National University, Gwangju, South Korea
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Shaw RK, Shen Y, Zhao Z, Sheng X, Wang J, Yu H, Gu H. Molecular Breeding Strategy and Challenges Towards Improvement of Downy Mildew Resistance in Cauliflower ( Brassica oleracea var. botrytis L.). FRONTIERS IN PLANT SCIENCE 2021; 12:667757. [PMID: 34354719 PMCID: PMC8329456 DOI: 10.3389/fpls.2021.667757] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Accepted: 05/31/2021] [Indexed: 06/13/2023]
Abstract
Cauliflower (Brassica oleracea var. botrytis L.) is one of the important, nutritious and healthy vegetable crops grown and consumed worldwide. But its production is constrained by several destructive fungal diseases and most importantly, downy mildew leading to severe yield and quality losses. For sustainable cauliflower production, developing resistant varieties/hybrids with durable resistance against broad-spectrum of pathogens is the best strategy for a long term and reliable solution. Identification of novel resistant resources, knowledge of the genetics of resistance, mapping and cloning of resistance QTLs and identification of candidate genes would facilitate molecular breeding for disease resistance in cauliflower. Advent of next-generation sequencing technologies (NGS) and publishing of draft genome sequence of cauliflower has opened the flood gate for new possibilities to develop enormous amount of genomic resources leading to mapping and cloning of resistance QTLs. In cauliflower, several molecular breeding approaches such as QTL mapping, marker-assisted backcrossing, gene pyramiding have been carried out to develop new resistant cultivars. Marker-assisted selection (MAS) would be beneficial in improving the precision in the selection of improved cultivars against multiple pathogens. This comprehensive review emphasizes the fascinating recent advances made in the application of molecular breeding approach for resistance against an important pathogen; Downy Mildew (Hyaloperonospora parasitica) affecting cauliflower and Brassica oleracea crops and highlights the QTLs identified imparting resistance against this pathogen. We have also emphasized the critical research areas as future perspectives to bridge the gap between availability of genomic resources and its utility in identifying resistance genes/QTLs to breed downy mildew resistant cultivars. Additionally, we have also discussed the challenges and the way forward to realize the full potential of molecular breeding for downy mildew resistance by integrating marker technology with conventional breeding in the post-genomics era. All this information will undoubtedly provide new insights to the researchers in formulating future breeding strategies in cauliflower to develop durable resistant cultivars against the major pathogens in general and downy mildew in particular.
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Affiliation(s)
| | | | | | | | | | | | - Honghui Gu
- Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
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Leng J, Tu W, Hou Y, Cui H. Temperature-Inducible Transgenic EDS1 and PAD4 in Arabidopsis Confer an Enhanced Disease Resistance at Elevated Temperature. PLANTS 2021; 10:plants10061258. [PMID: 34205696 PMCID: PMC8234125 DOI: 10.3390/plants10061258] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/12/2021] [Accepted: 06/13/2021] [Indexed: 01/14/2023]
Abstract
Temperature is one of the most important environmental factors greatly affecting plant disease development. High temperature favors outbreaks of many plant diseases, which threaten food security and turn to be a big issue along with climate change and global warming. Here, we found that concurrent constitutive expression of the key immune regulators EDS1 and PAD4 in Arabidopsis significantly enhanced resistance to virulent bacterial pathogen Pseudomonas syringae pv. tomato at elevated temperature; however, autoimmunity-related growth retardation was also observed on these plants at a normal temperature. To balance this growth-defense trade-off, we generated transgenic plants dual expressing EDS1 and PAD4 genes under the control of a thermo-sensitive promoter from the HSP70 gene, whose expression is highly induced at an elevated temperature. Unlike constitutive overexpression lines, the proHSP70-EP transgenic lines exhibited enhanced resistance to bacterial pathogens at an elevated temperature without growth defects at normal condition. Thus, this study provides a potential strategy for genetic manipulation of plants to deal with the simultaneous abiotic and biotic stresses.
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38
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Kieu NP, Lenman M, Wang ES, Petersen BL, Andreasson E. Mutations introduced in susceptibility genes through CRISPR/Cas9 genome editing confer increased late blight resistance in potatoes. Sci Rep 2021; 11:4487. [PMID: 33627728 PMCID: PMC7904907 DOI: 10.1038/s41598-021-83972-w] [Citation(s) in RCA: 69] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 02/10/2021] [Indexed: 01/31/2023] Open
Abstract
The use of pathogen-resistant cultivars is expected to increase yield and decrease fungicide use in agriculture. However, in potato breeding, increased resistance obtained via resistance genes (R-genes) is hampered because R-gene(s) are often specific for a pathogen race and can be quickly overcome by the evolution of the pathogen. In parallel, susceptibility genes (S-genes) are important for pathogenesis, and loss of S-gene function confers increased resistance in several plants, such as rice, wheat, citrus and tomatoes. In this article, we present the mutation and screening of seven putative S-genes in potatoes, including two DMR6 potato homologues. Using a CRISPR/Cas9 system, which conferred co-expression of two guide RNAs, tetra-allelic deletion mutants were generated and resistance against late blight was assayed in the plants. Functional knockouts of StDND1, StCHL1, and DMG400000582 (StDMR6-1) generated potatoes with increased resistance against late blight. Plants mutated in StDND1 showed pleiotropic effects, whereas StDMR6-1 and StCHL1 mutated plants did not exhibit any growth phenotype, making them good candidates for further agricultural studies. Additionally, we showed that DMG401026923 (here denoted StDMR6-2) knockout mutants did not demonstrate any increased late blight resistance, but exhibited a growth phenotype, indicating that StDMR6-1 and StDMR6-2 have different functions. To the best of our knowledge, this is the first report on the mutation and screening of putative S-genes in potatoes, including two DMR6 potato homologues.
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Affiliation(s)
- Nam Phuong Kieu
- Department of Plant Protection Biology, Swedish University of Agricultural Sciences, Alnarp, Sweden
| | - Marit Lenman
- Department of Plant Protection Biology, Swedish University of Agricultural Sciences, Alnarp, Sweden
| | - Eu Sheng Wang
- Department of Plant Protection Biology, Swedish University of Agricultural Sciences, Alnarp, Sweden
| | - Bent Larsen Petersen
- Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsen's vej 40, 1871, Frederiksberg C, Denmark
| | - Erik Andreasson
- Department of Plant Protection Biology, Swedish University of Agricultural Sciences, Alnarp, Sweden.
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Tomkowiak A, Skowrońska R, Kwiatek M, Spychała J, Weigt D, Kurasiak-Popowska D, Niemann J, Mikołajczyk S, Nawracała J, Kowalczewski PŁ, Khan K. Identification of leaf rust resistance genes Lr34 and Lr46 in common wheat ( Triticum aestivum L. ssp. aestivum) lines of different origin using multiplex PCR. Open Life Sci 2021; 16:172-183. [PMID: 33817309 PMCID: PMC7968542 DOI: 10.1515/biol-2021-0018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 01/07/2021] [Accepted: 01/24/2021] [Indexed: 01/03/2023] Open
Abstract
Leaf rust caused by the fungus Puccinia recondita f. sp. tritici is one of the most dangerous diseases of common wheat. Infections caused by fungal pathogens reduce the quantity and quality of yields of many cereal species. The most effective method to limit plant infection is to use cultivars that show rust resistance. Genetically conditioned horizontal-type resistance (racial-nonspecific) is a desirable trait because it is characterized by more stable expression compared to major (R) genes that induce racially specific resistance, often overcome by pathogens. Horizontal resistance is conditioned by the presence of slow rust genes, which include genes Lr34 and Lr46. This study aimed to identify markers linked to both genes in 64 common wheat lines and to develop multiplex PCR reaction conditions that were applied to identify both genes simultaneously. The degree of infestation of the analyzed lines was also assessed in field conditions during the growing season of 2017 and 2018. Simple sequence repeat anchored-polymerase chain reaction (SSR-PCR) marker csLV was identified during analysis in line PHR 4947. The presence of a specific sequence has also been confirmed in multiplex PCR analyses. In addition to gene Lr34, gene Lr46 was identified in this genotype. Lines PHR 4947 and PHR 4819 were characterized by the highest leaf rust resistance in field conditions. During STS-PCR analyses, the marker wmc44 of gene Lr46 was identified in most of the analyzed lines. This marker was not present in the following genotypes: PHR 4670, PHR 4800, PHR 4859, PHR 4907, PHR 4922, PHR 4949, PHR 4957, PHR 4995, and PHR 4997. The presence of a specific sequence has also been confirmed in multiplex PCR analyses. Genotypes carrying the markers of the analyzed gene showed good resistance to leaf rust in field conditions in both 2017 and 2018. Research has demonstrated that marker assisted selection (MAS) and multiplex PCR techniques are excellent tools for selecting genotypes resistant to leaf rust.
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Affiliation(s)
- Agnieszka Tomkowiak
- Department of Genetics and Plant Breeding, Poznań University of Life Sciences, 11 Dojazd St., Poznań, Poland
| | - Roksana Skowrońska
- Department of Genetics and Plant Breeding, Poznań University of Life Sciences, 11 Dojazd St., Poznań, Poland
| | - Michał Kwiatek
- Department of Genetics and Plant Breeding, Poznań University of Life Sciences, 11 Dojazd St., Poznań, Poland
| | - Julia Spychała
- Department of Genetics and Plant Breeding, Poznań University of Life Sciences, 11 Dojazd St., Poznań, Poland
| | - Dorota Weigt
- Department of Genetics and Plant Breeding, Poznań University of Life Sciences, 11 Dojazd St., Poznań, Poland
| | - Danuta Kurasiak-Popowska
- Department of Genetics and Plant Breeding, Poznań University of Life Sciences, 11 Dojazd St., Poznań, Poland
| | - Janetta Niemann
- Department of Genetics and Plant Breeding, Poznań University of Life Sciences, 11 Dojazd St., Poznań, Poland
| | - Sylwia Mikołajczyk
- Department of Genetics and Plant Breeding, Poznań University of Life Sciences, 11 Dojazd St., Poznań, Poland
| | - Jerzy Nawracała
- Department of Genetics and Plant Breeding, Poznań University of Life Sciences, 11 Dojazd St., Poznań, Poland
| | - Przemysław Łukasz Kowalczewski
- Department of Food Technology of Plant Origin, Poznań University of Life Sciences, 31 Wojska Polskiego St., 60-624, Poznań, Poland
| | - Kinza Khan
- Department of Genetics and Plant Breeding, Poznań University of Life Sciences, 11 Dojazd St., Poznań, Poland
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Tripathi L, Ntui VO, Tripathi JN, Kumar PL. Application of CRISPR/Cas for Diagnosis and Management of Viral Diseases of Banana. Front Microbiol 2021; 11:609784. [PMID: 33584573 PMCID: PMC7873300 DOI: 10.3389/fmicb.2020.609784] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 12/29/2020] [Indexed: 12/26/2022] Open
Abstract
Viral diseases are significant biotic constraints for banana (Musa spp.) production as they affect the yield and limit the international movement of germplasm. Among all the viruses known to infect banana, the banana bunchy top virus and banana streak viruses are widespread and economically damaging. The use of virus-resistant bananas is the most cost-effective option to minimize the negative impacts of viral-diseases on banana production. CRISPR/Cas-based genome editing is emerging as the most powerful tool for developing virus-resistant crop varieties in several crops, including the banana. The availability of a vigorous genetic transformation and regeneration system and a well-annotated whole-genome sequence of banana makes it a compelling candidate for genome editing. A robust CRISPR/Cas9-based genome editing of the banana has recently been established, which can be applied in developing disease-resistant varieties. Recently, the CRISPR system was exploited to detect target gene sequences using Cas9, Cas12, Cas13, and Cas14 enzymes, thereby unveiling the use of this technology for virus diagnosis. This article presents a synopsis of recent advancements and perspectives on the application of CRISPR/Cas-based genome editing for diagnosing and developing resistance against banana viruses and challenges in genome-editing of banana.
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Affiliation(s)
- Leena Tripathi
- International Institute of Tropical Agriculture, Nairobi, Kenya
| | | | | | - P. Lava Kumar
- International Institute of Tropical Agriculture, Ibadan, Nigeria
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Salava H, Thula S, Mohan V, Kumar R, Maghuly F. Application of Genome Editing in Tomato Breeding: Mechanisms, Advances, and Prospects. Int J Mol Sci 2021; 22:E682. [PMID: 33445555 PMCID: PMC7827871 DOI: 10.3390/ijms22020682] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 12/31/2020] [Accepted: 01/05/2021] [Indexed: 12/19/2022] Open
Abstract
Plants regularly face the changing climatic conditions that cause biotic and abiotic stress responses. The abiotic stresses are the primary constraints affecting crop yield and nutritional quality in many crop plants. The advances in genome sequencing and high-throughput approaches have enabled the researchers to use genome editing tools for the functional characterization of many genes useful for crop improvement. The present review focuses on the genome editing tools for improving many traits such as disease resistance, abiotic stress tolerance, yield, quality, and nutritional aspects of tomato. Many candidate genes conferring tolerance to abiotic stresses such as heat, cold, drought, and salinity stress have been successfully manipulated by gene modification and editing techniques such as RNA interference, insertional mutagenesis, and clustered regularly interspaced short palindromic repeat (CRISPR/Cas9). In this regard, the genome editing tools such as CRISPR/Cas9, which is a fast and efficient technology that can be exploited to explore the genetic resources for the improvement of tomato and other crop plants in terms of stress tolerance and nutritional quality. The review presents examples of gene editing responsible for conferring both biotic and abiotic stresses in tomato simultaneously. The literature on using this powerful technology to improve fruit quality, yield, and nutritional aspects in tomato is highlighted. Finally, the prospects and challenges of genome editing, public and political acceptance in tomato are discussed.
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Affiliation(s)
- Hymavathi Salava
- Department of Plant Sciences, University of Hyderabad, Hyderabad 500064, India;
| | - Sravankumar Thula
- Mendel Centre for Plant Genomics and Proteomics, Central European Institute of Technology (CEITEC), Masaryk University, Kamenice 5, CZ-625 00 Brno, Czech Republic;
| | - Vijee Mohan
- Department of Biological Sciences, University of North Texas, Denton, TX 76203, USA;
| | - Rahul Kumar
- Plant Translational Research Laboratory, Department of Plant Sciences, University of Hyderabad, Hyderabad 500064, India;
| | - Fatemeh Maghuly
- Plant Functional Genomics, Institute of Molecular Biotechnology, Department of Biotechnology, BOKU-VIBT, University of Natural Resources and Life Sciences, 1190 Vienna, Austria
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Tyagi S, Kumar R, Kumar V, Won SY, Shukla P. Engineering disease resistant plants through CRISPR-Cas9 technology. GM CROPS & FOOD 2021; 12:125-144. [PMID: 33079628 PMCID: PMC7583490 DOI: 10.1080/21645698.2020.1831729] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 09/13/2020] [Accepted: 09/27/2020] [Indexed: 01/08/2023]
Abstract
Plants are susceptible to phytopathogens, including bacteria, fungi, and viruses, which cause colossal financial shortfalls (pre- and post-harvest) and threaten global food safety. To combat with these phytopathogens, plant possesses two-layer of defense in the form of PAMP-triggered immunity (PTI), or Effectors-triggered immunity (ETI). The understanding of plant-molecular interactions and revolution of high-throughput molecular techniques have opened the door for innovations in developing pathogen-resistant plants. In this context, Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)-CRISPR-associated protein 9 (Cas9) has transformed genome editing (GE) technology and being harnessed for altering the traits. Here we have summarized the complexities of plant immune system and the use of CRISPR-Cas9 to edit the various components of plant immune system to acquire long-lasting resistance in plants against phytopathogens. This review also sheds the light on the limitations of CRISPR-Cas9 system, regulation of CRISPR-Cas9 edited crops and future prospective of this technology.
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Affiliation(s)
- Swati Tyagi
- Genomic Division, National Institute of Agriculture Science, Rural Development Administration, Jeonju, Republic of Korea
| | - Robin Kumar
- Department of Soil Science and Agricultural Chemistry, Acharya Narendra Dev University of Agriculture and Technology, Kumarganj, Ayodhya, India
- Department of Agriculture Engineering, Sardar Vallabhbhai Patel University of Agriculture and Technology, Meerut, India
| | - Vivak Kumar
- Department of Agriculture Engineering, Sardar Vallabhbhai Patel University of Agriculture and Technology, Meerut, India
| | - So Youn Won
- Genomic Division, National Institute of Agriculture Science, Rural Development Administration, Jeonju, Republic of Korea
| | - Pratyoosh Shukla
- Enzyme Technology and Protein Bioinformatics Laboratory, Department of Microbiology, Maharshi Dayanand University, Rohtak, India
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43
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Shami A, Mostafa M, Abd-Elsalam KA. CRISPR applications in plant bacteriology: today and future perspectives. CRISPR AND RNAI SYSTEMS 2021:551-577. [DOI: 10.1016/b978-0-12-821910-2.00011-4] [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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Hanika K, Schipper D, Chinnappa S, Oortwijn M, Schouten HJ, Thomma BPHJ, Bai Y. Impairment of Tomato WAT1 Enhances Resistance to Vascular Wilt Fungi Despite Severe Growth Defects. FRONTIERS IN PLANT SCIENCE 2021; 12:721674. [PMID: 34589102 PMCID: PMC8473820 DOI: 10.3389/fpls.2021.721674] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 08/25/2021] [Indexed: 05/18/2023]
Abstract
Verticillium dahliae is a particularly notorious vascular wilt pathogen of tomato and poses a reoccurring challenge to crop protection as limited qualitative resistance is available. Therefore, alternative approaches for crop protection are pursued. One such strategy is the impairment of disease susceptibility (S) genes, which are plant genes targeted by pathogens to promote disease development. In Arabidopsis and cotton, the Walls Are Thin 1 (WAT1) gene has shown to be a S gene for V. dahliae. In this study, we identified the tomato WAT1 homolog Solyc04g080940 (SlWAT1). Transient and stable silencing of SlWAT1, based on virus-induced gene silencing (VIGS) and RNAi, respectively, did not consistently lead to reduced V. dahliae susceptibility in tomato. However, CRISPR-Cas9 tomato mutant lines carrying targeted deletions in SlWAT1 showed significantly enhanced resistance to V. dahliae, and furthermore also to Verticillium albo-atrum and Fusarium oxysporum f. sp. lycopersici (Fol). Thus, disabling the tomato WAT1 gene resulted in broad-spectrum resistance to various vascular pathogens in tomato. Unfortunately these tomato CRISPR mutant lines suffered from severe growth defects. In order to overcome the pleiotropic effect caused by the impairment of the tomato WAT1 gene, future efforts should be devoted to identifying tomato SlWAT1 mutant alleles that do not negatively impact tomato growth and development.
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Affiliation(s)
- Katharina Hanika
- Plant Breeding, Wageningen University & Research, Wageningen, Netherlands
| | - Danny Schipper
- Plant Breeding, Wageningen University & Research, Wageningen, Netherlands
| | - Shravya Chinnappa
- Plant Breeding, Wageningen University & Research, Wageningen, Netherlands
| | - Marian Oortwijn
- Plant Breeding, Wageningen University & Research, Wageningen, Netherlands
| | - Henk J. Schouten
- Plant Breeding, Wageningen University & Research, Wageningen, Netherlands
| | - Bart P. H. J. Thomma
- Laboratory of Phytopathology, Wageningen University & Research, Wageningen, Netherlands
| | - Yuling Bai
- Plant Breeding, Wageningen University & Research, Wageningen, Netherlands
- *Correspondence: Yuling Bai,
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Jha UC, Bohra A, Pandey S, Parida SK. Breeding, Genetics, and Genomics Approaches for Improving Fusarium Wilt Resistance in Major Grain Legumes. Front Genet 2020; 11:1001. [PMID: 33193586 PMCID: PMC7644945 DOI: 10.3389/fgene.2020.01001] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 08/06/2020] [Indexed: 12/29/2022] Open
Abstract
Fusarium wilt (FW) disease is the key constraint to grain legume production worldwide. The projected climate change is likely to exacerbate the current scenario. Of the various plant protection measures, genetic improvement of the disease resistance of crop cultivars remains the most economic, straightforward and environmental-friendly option to mitigate the risk. We begin with a brief recap of the classical genetic efforts that provided first insights into the genetic determinants controlling plant response to different races of FW pathogen in grain legumes. Subsequent technological breakthroughs like sequencing technologies have enhanced our understanding of the genetic basis of both plant resistance and pathogenicity. We present noteworthy examples of targeted improvement of plant resistance using genomics-assisted approaches. In parallel, modern functional genomic tools like RNA-seq are playing a greater role in illuminating the various aspects of plant-pathogen interaction. Further, proteomics and metabolomics have also been leveraged in recent years to reveal molecular players and various signaling pathways and complex networks participating in host-pathogen interaction. Finally, we present a perspective on the challenges and limitations of high-throughput phenotyping and emerging breeding approaches to expeditiously develop FW-resistant cultivars under the changing climate.
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Affiliation(s)
- Uday Chand Jha
- ICAR-Indian Institute of Pulses Research, Uttar Pradesh, India
| | - Abhishek Bohra
- ICAR-Indian Institute of Pulses Research, Uttar Pradesh, India
| | - Shailesh Pandey
- Forest Protection Division, Forest Research Institute, Dehradun, India
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Jaswal R, Kiran K, Rajarammohan S, Dubey H, Singh PK, Sharma Y, Deshmukh R, Sonah H, Gupta N, Sharma TR. Effector Biology of Biotrophic Plant Fungal Pathogens: Current Advances and Future Prospects. Microbiol Res 2020; 241:126567. [PMID: 33080488 DOI: 10.1016/j.micres.2020.126567] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 07/21/2020] [Accepted: 07/25/2020] [Indexed: 12/13/2022]
Abstract
The interaction of fungal pathogens with their host requires a novel invading mechanism and the presence of various virulence-associated components responsible for promoting the infection. The small secretory proteins, explicitly known as effector proteins, are one of the prime mechanisms of host manipulation utilized by the pathogen to disarm the host. Several effector proteins are known to translocate from fungus to the plant cell for host manipulation. Many fungal effectors have been identified using genomic, transcriptomic, and bioinformatics approaches. Most of the effector proteins are devoid of any conserved signatures, and their prediction based on sequence homology is very challenging, therefore by combining the sequence consensus based upon machine learning features, multiple tools have also been developed for predicting apoplastic and cytoplasmic effectors. Various post-genomics approaches like transcriptomics of virulent isolates have also been utilized for identifying active consortia of effectors. Significant progress has been made in understanding biotrophic effectors; however, most of it is underway due to their complex interaction with host and complicated recognition and signaling networks. This review discusses advances, and challenges in effector identification and highlighted various features of the potential effector proteins and approaches for understanding their genetics and strategies for regulation.
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Affiliation(s)
- Rajdeep Jaswal
- National Agri-Food Biotechnology Institute (NABI), Mohali, Punjab, 140306, India; Department of Microbiology, Panjab University, Chandigarh, Punjab, 160014, India
| | - Kanti Kiran
- ICAR-National Institute for Plant Biotechnology, Pusa Campus New Delhi, 110012, India
| | | | - Himanshu Dubey
- ICAR-National Institute for Plant Biotechnology, Pusa Campus New Delhi, 110012, India
| | - Pankaj Kumar Singh
- National Agri-Food Biotechnology Institute (NABI), Mohali, Punjab, 140306, India
| | - Yogesh Sharma
- National Agri-Food Biotechnology Institute (NABI), Mohali, Punjab, 140306, India
| | - Rupesh Deshmukh
- National Agri-Food Biotechnology Institute (NABI), Mohali, Punjab, 140306, India
| | - Humira Sonah
- National Agri-Food Biotechnology Institute (NABI), Mohali, Punjab, 140306, India
| | - Naveen Gupta
- Department of Microbiology, Panjab University, Chandigarh, Punjab, 160014, India.
| | - T R Sharma
- National Agri-Food Biotechnology Institute (NABI), Mohali, Punjab, 140306, India.
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Dinh HX, Singh D, Periyannan S, Park RF, Pourkheirandish M. Molecular genetics of leaf rust resistance in wheat and barley. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2020; 133:2035-2050. [PMID: 32128617 DOI: 10.1007/s00122-020-03570-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 02/18/2020] [Indexed: 06/10/2023]
Abstract
The demand for cereal grains as a main source of energy continues to increase due to the rapid increase in world population. The leaf rust diseases of cereals cause significant yield losses, posing challenges for global food security. The deployment of resistance genes has long been considered as the most effective and sustainable way to control cereal leaf rust diseases. While genetic resistance has reduced the impact of these diseases in agriculture, losses still occur due to the ability of the respective rust pathogens to change and render resistance genes ineffective plus the slow pace at which resistance genes are discovered and characterized. This article highlights novel recently developed strategies based on advances in genome sequencing that have accelerated gene isolation by overcoming the complexity of cereal genomes. The leaf rust resistance genes cloned so far from wheat and barley belong to various protein families, including nucleotide binding site/leucine-rich repeat receptors and transporters. We review recent studies that are beginning to reveal the defense mechanisms conferred by the leaf rust resistance genes identified to date in cereals and their roles in either pattern-triggered immunity or effector-triggered immunity.
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Affiliation(s)
- Hoan X Dinh
- Plant Breeding Institute, Faculty of Science, The University of Sydney, Cobbitty, NSW, 2570, Australia
| | - Davinder Singh
- Plant Breeding Institute, Faculty of Science, The University of Sydney, Cobbitty, NSW, 2570, Australia
| | - Sambasivam Periyannan
- CSIRO Agriculture and Food, Box 1700, Clunies Ross Street, Canberra, 2601, Australia
| | - Robert F Park
- Plant Breeding Institute, Faculty of Science, The University of Sydney, Cobbitty, NSW, 2570, Australia.
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48
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Cheng Y, Lin Y, Cao H, Li Z. Citrus Postharvest Green Mold: Recent Advances in Fungal Pathogenicity and Fruit Resistance. Microorganisms 2020; 8:E449. [PMID: 32209982 PMCID: PMC7143998 DOI: 10.3390/microorganisms8030449] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Revised: 03/10/2020] [Accepted: 03/21/2020] [Indexed: 01/04/2023] Open
Abstract
As the major postharvest disease of citrus fruit, postharvest green mold is caused by the necrotrophic fungus Penicillium digitatum (Pd), which leads to huge economic losses worldwide. Fungicides are still the main method currently used to control postharvest green mold in citrus fruit storage. Investigating molecular mechanisms of plant-pathogen interactions, including pathogenicity and plant resistance, is crucial for developing novel and safer strategies for effectively controlling plant diseases. Despite fruit-pathogen interactions remaining relatively unexplored compared with well-studied leaf-pathogen interactions, progress has occurred in the citrus fruit-Pd interaction in recent years, mainly due to their genome sequencing and establishment or optimization of their genetic transformation systems. Recent advances in Pd pathogenicity on citrus fruit and fruit resistance against Pd infection are summarized in this review.
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Affiliation(s)
- Yulin Cheng
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing 401331, China (H.C.)
- Center of Plant Functional Genomics, Institute of Advanced Interdisciplinary Studies, Chongqing University, Chongqing 401331, China
| | - Yunlong Lin
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing 401331, China (H.C.)
- Center of Plant Functional Genomics, Institute of Advanced Interdisciplinary Studies, Chongqing University, Chongqing 401331, China
| | - Haohao Cao
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing 401331, China (H.C.)
- Center of Plant Functional Genomics, Institute of Advanced Interdisciplinary Studies, Chongqing University, Chongqing 401331, China
| | - Zhengguo Li
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing 401331, China (H.C.)
- Center of Plant Functional Genomics, Institute of Advanced Interdisciplinary Studies, Chongqing University, Chongqing 401331, China
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Zhao Y, Yang X, Zhou G, Zhang T. Engineering plant virus resistance: from RNA silencing to genome editing strategies. PLANT BIOTECHNOLOGY JOURNAL 2020; 18:328-336. [PMID: 31618513 PMCID: PMC6953188 DOI: 10.1111/pbi.13278] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 10/06/2019] [Accepted: 10/14/2019] [Indexed: 05/09/2023]
Abstract
Viral diseases severely affect crop yield and quality, thereby threatening global food security. Genetic improvement of plant virus resistance is essential for sustainable agriculture. In the last decades, several modern technologies were applied in plant antiviral engineering. Here we summarized breakthroughs of the two major antiviral strategies, RNA silencing and genome editing. RNA silencing strategy has been used in antiviral breeding for more than thirty years, and many crops engineered to stably express small RNAs targeting various viruses have been approved for commercial release. Genome editing technology has emerged in the past decade, especially CRISPR/Cas, which provides new methods for genetic improvement of plant virus resistance and accelerates resistance breeding. Finally, we discuss the potential of these technologies for breeding crops, and the challenges and solutions they may face in the future.
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Affiliation(s)
- Yaling Zhao
- Guangdong Province Key Laboratory of Microbial Signals and Disease ControlCollege of AgricultureSouth China Agricultural UniversityGuangzhouChina
| | - Xin Yang
- Guangdong Province Key Laboratory of Microbial Signals and Disease ControlCollege of AgricultureSouth China Agricultural UniversityGuangzhouChina
| | - Guohui Zhou
- Guangdong Province Key Laboratory of Microbial Signals and Disease ControlCollege of AgricultureSouth China Agricultural UniversityGuangzhouChina
| | - Tong Zhang
- Guangdong Province Key Laboratory of Microbial Signals and Disease ControlCollege of AgricultureSouth China Agricultural UniversityGuangzhouChina
- Integrative Microbiology Research CentreSouth China Agricultural UniversityGuangzhouChina
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50
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Vincent D, Rafiqi M, Job D. The Multiple Facets of Plant-Fungal Interactions Revealed Through Plant and Fungal Secretomics. FRONTIERS IN PLANT SCIENCE 2020; 10:1626. [PMID: 31969889 PMCID: PMC6960344 DOI: 10.3389/fpls.2019.01626] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 11/19/2019] [Indexed: 05/14/2023]
Abstract
The plant secretome is usually considered in the frame of proteomics, aiming at characterizing extracellular proteins, their biological roles and the mechanisms accounting for their secretion in the extracellular space. In this review, we aim to highlight recent results pertaining to secretion through the conventional and unconventional protein secretion pathways notably those involving plant exosomes or extracellular vesicles. Furthermore, plants are well known to actively secrete a large array of different molecules from polymers (e.g. extracellular RNA and DNA) to small compounds (e.g. ATP, phytochemicals, secondary metabolites, phytohormones). All of these play pivotal roles in plant-fungi (or oomycetes) interactions, both for beneficial (mycorrhizal fungi) and deleterious outcomes (pathogens) for the plant. For instance, recent work reveals that such secretion of small molecules by roots is of paramount importance to sculpt the rhizospheric microbiota. Our aim in this review is to extend the definition of the plant and fungal secretomes to a broader sense to better understand the functioning of the plant/microorganisms holobiont. Fundamental perspectives will be brought to light along with the novel tools that should support establishing an environment-friendly and sustainable agriculture.
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Affiliation(s)
- Delphine Vincent
- Agriculture Victoria Research, AgriBio, Centre for AgriBioscience, Bundoora, VIC, Australia
| | - Maryam Rafiqi
- AgroBioSciences Program, Mohammed VI Polytechnic University (UM6P), Ben Guerir, Morocco
| | - Dominique Job
- CNRS/Université Claude Bernard Lyon 1/Institut National des Sciences Appliquées/Bayer CropScience Joint Laboratory (UMR 5240), Bayer CropScience, Lyon, France
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