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Li T. A Chinese model for legal regulation of Gene-Edited endangered animals and plants. Gene 2024; 911:148350. [PMID: 38467316 DOI: 10.1016/j.gene.2024.148350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 02/22/2024] [Accepted: 03/06/2024] [Indexed: 03/13/2024]
Abstract
BACKGROUND The application of gene editing technology in the field of endangered plant and animal conservation has innovative and prospective value in saving endangered plant and animal populations, but it also poses challenges to the ecological environment and bioethical norms. Gene editing has impacted China's animal and plant protection legal system, and this study aims to provide solutions for China to regulate gene editing of endangered plants and animals. The study concludes that China should enact specific legislation on gene editing of endangered plants and animals, abide by the concept of biosafety, and aim to maintain biodiversity and ecological balance; under the supervision of the ecological and environmental departments, the regulation of gene editing of endangered plants and animals should adopt a hybrid model of "combining the product and the process", and establish a system of registration, labeling, and responsibility. The ownership of gene-edited endangered animals and plants should adhere to the compound ownership model, recognizing that the State, collectives and individuals can all be owners within the scope of legal authorization.
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Affiliation(s)
- Tao Li
- School of Law, ZhongNan University of Economics and Law, Wuhan, China.
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2
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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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3
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Slaman E, Kottenhagen L, de Martines W, Angenent GC, de Maagd RA. Comparison of Cas12a and Cas9-mediated mutagenesis in tomato cells. Sci Rep 2024; 14:4508. [PMID: 38402312 PMCID: PMC10894265 DOI: 10.1038/s41598-024-55088-4] [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: 10/18/2023] [Accepted: 02/20/2024] [Indexed: 02/26/2024] Open
Abstract
Cas12a is a promising addition to the CRISPR toolbox, offering versatility due to its TTTV-protospacer adjacent motif (PAM) and the fact that it induces double-stranded breaks (DSBs) with single-stranded overhangs. We characterized Cas12a-mediated genome editing in tomato using high-throughput amplicon sequencing on protoplasts. Of the three tested variants, Lachnospiraceae (Lb) Cas12a was the most efficient. Additionally, we developed an easy and effective Golden-Gate-based system for crRNA cloning. We compared LbCas12a to SpCas9 by investigating on-target efficacy and specificity at 35 overlapping target sites and 57 (LbCas12a) or 100 (SpCas9) predicted off-target sites. We found LbCas12a an efficient, robust addition to SpCas9, with similar overall though target-dependent efficiencies. LbCas12a induced more and larger deletions than SpCas9, which can be advantageous for specific genome editing applications. Off-target activity for LbCas12a was found at 10 out of 57 investigated sites. One or two mismatches were present distal from the PAM in all cases. We conclude that Cas12a-mediated genome editing is generally precise as long as such off-target sites can be avoided. In conclusion, we have determined the mutation pattern and efficacy of Cas12a-mediated CRISPR mutagenesis in tomato and developed a cloning system for the routine application of Cas12a for tomato genome editing.
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Affiliation(s)
- Ellen Slaman
- Laboratory of Molecular Biology, Wageningen University & Research, Wageningen, The Netherlands
- Bioscience, Wageningen University & Research, Wageningen, The Netherlands
| | - Lisanne Kottenhagen
- Laboratory of Molecular Biology, Wageningen University & Research, Wageningen, The Netherlands
| | - William de Martines
- Laboratory of Molecular Biology, Wageningen University & Research, Wageningen, The Netherlands
| | - Gerco C Angenent
- Laboratory of Molecular Biology, Wageningen University & Research, Wageningen, The Netherlands
- Bioscience, Wageningen University & Research, Wageningen, The Netherlands
| | - Ruud A de Maagd
- Bioscience, Wageningen University & Research, Wageningen, The Netherlands.
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4
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Nguyen CC, Van Vu T, Shelake RM, Nguyen NT, Khanh TD, Kim WY, Kim JY. Generation of parthenocarpic tomato plants in multiple elite cultivars using the CRISPR/Cas9 system. MOLECULAR BREEDING : NEW STRATEGIES IN PLANT IMPROVEMENT 2024; 44:13. [PMID: 38317771 PMCID: PMC10838257 DOI: 10.1007/s11032-024-01452-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 10/02/2023] [Indexed: 02/07/2024]
Abstract
Tomato (Solanum lycopersicum L.) is one of the most important crops in the world for its fruit production. Advances in cutting-edge techniques have enabled the development of numerous critical traits related to the quality and quantity of tomatoes. Genetic engineering techniques, such as gene transformation and gene editing, have emerged as powerful tools for generating new plant varieties with superior traits. In this study, we induced parthenocarpic traits in a population of elite tomato (ET) lines. At first, the adaptability of ET lines to genetic transformation was evaluated to identify the best-performing lines by transforming the SlANT1 gene overexpression cassette and then later used to produce the SlIAA9 knockout lines using the CRISPR/Cas9 system. ET5 and ET8 emerged as excellent materials for these techniques and showed higher efficiency. Typical phenotypes of knockout sliaa9 were clearly visible in G0 and G1 plants, in which simple leaves and parthenocarpic fruits were observed. The high efficiency of the CRISPR/Cas9 system in developing new tomato varieties with desired traits in a short period was demonstrated by generating T-DNA-free homozygous sliaa9 knockout plants in the G1 generation. Additionally, a simple artificial fertilization method was successfully applied to recover seed production from parthenocarpic plants, securing the use of these varieties as breeding materials. Supplementary Information The online version contains supplementary material available at 10.1007/s11032-024-01452-1.
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Affiliation(s)
- Cam Chau Nguyen
- Division of Applied Life Science (BK21 Four Program), Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, Korea
- Faculty of Biotechnology, Vietnam National University of Agriculture, Hanoi, Vietnam
| | - Tien Van Vu
- Division of Applied Life Science (BK21 Four Program), Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, Korea
| | - Rahul Mahadev Shelake
- Division of Applied Life Science (BK21 Four Program), Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, Korea
| | - Nhan Thi Nguyen
- Institute of Environmental Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | | | - Woe-Yeon Kim
- Division of Applied Life Science (BK21+) and Research Institute of Life Science, Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, Korea
| | - Jae-Yean Kim
- Division of Applied Life Science (BK21 Four Program), Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, Korea
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5
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Chauhan PK, Upadhyay SK, Rajput VD, Dwivedi P, Minkina T, Wong MH. Fostering plant growth performance under drought stress using rhizospheric microbes, their gene editing, and biochar. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2024; 46:41. [PMID: 38227068 DOI: 10.1007/s10653-023-01823-1] [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: 04/04/2023] [Accepted: 11/27/2023] [Indexed: 01/17/2024]
Abstract
Stress due to drought lowers crop yield and frequently leads to a rise in food scarcity. Plants' intricate metabolic systems enable them to tolerate drought stress, but they are unable to handle it well. Adding some external, environmentally friendly supplements can boost plant growth and productivity when it comes to drought-stressed plants. In order to prevent the detrimental effects of drought in agricultural regions, environmentally friendly practices must be upheld. Plant growth-promoting rhizobacteria (PGPR) can exhibit beneficial phytostimulation, mineralization, and biocontrol activities under drought stress. The significant impact of the PGPR previously reported has not been accepted as an effective treatment to lessen drought stress. Recent studies have successfully shown that manipulating microbes can be a better option to reduce the severity of drought in plants. In this review, we demonstrate how modifying agents such as biochar, PGPR consortia, PGPR, and mycorrhizal fungi can help overcome drought stress responses in crop plants. This article also discusses CRISPR/Cas9-modifiable genes, increase plant's effectiveness in drought conditions, and increase plant resistance to drought stress. With an eco-friendly approach in mind, there is a need for practical management techniques having potential prospects based on an integrated strategy mediated by CRISPR-Cas9 editing, PGPR, which may alleviate the effects of drought stress in crops and aid in achieving the United Nation Sustainable Development Goals (UN-SDGs-2030).
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Affiliation(s)
- Prabhat K Chauhan
- Department of Environmental Science, V.B.S. Purvanchal University, Jaunpur, 222003, India
| | - Sudhir K Upadhyay
- Department of Environmental Science, V.B.S. Purvanchal University, Jaunpur, 222003, India.
| | - Vishnu D Rajput
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, Russia, 344090
| | - Padmanabh Dwivedi
- Department of Plant Physiology, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, 221005, India
| | - Tatiana Minkina
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, Russia, 344090
| | - Ming Hung Wong
- Consortium On Health, Environment, Education, and Research (CHEER), and Department of Science and Environmental Studies, The Education University of Hong Kong, Tai Po, Hong Kong, 999077, China
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6
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Bi M, Wang Z, Cheng K, Cui Y, He Y, Ma J, Qi M. Construction of transcription factor mutagenesis population in tomato using a pooled CRISPR/Cas9 plasmid library. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 205:108094. [PMID: 37995578 DOI: 10.1016/j.plaphy.2023.108094] [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: 05/18/2023] [Revised: 09/25/2023] [Accepted: 10/12/2023] [Indexed: 11/25/2023]
Abstract
Adequate mutant materials are the prerequisite for conducting gene function research or screening novel functional genes in plants. The strategy of constructing a large-scale mutant population using the pooled CRISPR/Cas9-sgRNA library has been implemented in several crops. However, the effective application of this CRISPR/Cas9 large-scale screening strategy to tomato remains to be attempted. Here, we identified 990 transcription factors in the tomato genome, designed and synthesized a CRISPR/Cas9 plasmid library containing 4379 sgRNAs. Using this pooled library, 487 T0 positive plants were obtained, among which 92 plants harbored a single sgRNA sequence, targeting 65 different transcription factors, with a mutation rate of 23%. In the T0 mutant population, the occurrence of homozygous and biallelic mutations was observed at higher frequencies. Additionally, the utilization of a small-scale CRISPR/Cas9 library targeting 30 transcription factors could enhance the efficacy of single sgRNA recognition in positive plants, increasing it from 19% to 42%. Phenotypic characterization of several mutants identified from the mutant population demonstrated the utility of our CRISPR/Cas9 mutant library. Taken together, our study offers insights into the implementation and optimization of CRISPR/Cas9-mediated large-scale knockout library in tomato.
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Affiliation(s)
- Mengxi Bi
- College of Horticulture, Shenyang Agricultural University, Shenyang, China; National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning), Shenyang, China; Key Laboratory of Protected Horticulture (Shenyang Agricultural University), Ministry of Education, Shenyang, China; Key Laboratory of Horticultural Equipment, Ministry of Agriculture and Rural Affairs, Shenyang, China
| | - Zhijun Wang
- College of Horticulture, Shenyang Agricultural University, Shenyang, China; National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning), Shenyang, China; Key Laboratory of Protected Horticulture (Shenyang Agricultural University), Ministry of Education, Shenyang, China; Key Laboratory of Horticultural Equipment, Ministry of Agriculture and Rural Affairs, Shenyang, China
| | - Keyan Cheng
- College of Horticulture, Shenyang Agricultural University, Shenyang, China; National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning), Shenyang, China; Key Laboratory of Protected Horticulture (Shenyang Agricultural University), Ministry of Education, Shenyang, China; Key Laboratory of Horticultural Equipment, Ministry of Agriculture and Rural Affairs, Shenyang, China
| | - Yiqing Cui
- National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning), Shenyang, China; Key Laboratory of Protected Horticulture (Shenyang Agricultural University), Ministry of Education, Shenyang, China
| | - Yi He
- National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning), Shenyang, China; Key Laboratory of Protected Horticulture (Shenyang Agricultural University), Ministry of Education, Shenyang, China
| | - Jian Ma
- College of Horticulture, Shenyang Agricultural University, Shenyang, China; National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning), Shenyang, China; Key Laboratory of Protected Horticulture (Shenyang Agricultural University), Ministry of Education, Shenyang, China; Key Laboratory of Horticultural Equipment, Ministry of Agriculture and Rural Affairs, Shenyang, China
| | - Mingfang Qi
- College of Horticulture, Shenyang Agricultural University, Shenyang, China; National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning), Shenyang, China; Key Laboratory of Protected Horticulture (Shenyang Agricultural University), Ministry of Education, Shenyang, China; Key Laboratory of Horticultural Equipment, Ministry of Agriculture and Rural Affairs, Shenyang, China.
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7
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Zhou M, Deng L, Yuan G, Zhao W, Ma M, Sun C, Du M, Li C, Li C. Rapid generation of a tomato male sterility system and its feasible application in hybrid seed production. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2023; 136:197. [PMID: 37608233 DOI: 10.1007/s00122-023-04428-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Accepted: 07/24/2023] [Indexed: 08/24/2023]
Abstract
KEY MESSAGE A practical approach for the rapid generation and feasible application of green hypocotyl male-sterile (GHMS) tm6 dfr lines in tomato hybrid breeding was established. Male sterility enables reduced cost and high seed purity during hybrid seed production. However, progress toward its commercial application has been slow in tomato due to the disadvantages of most natural male-sterile mutants. Here, we developed a practical method for efficient tomato hybrid seed production using a male-sterile system with visible marker, which was rapidly generated by CRISPR/Cas9-mediated gene editing. Two closely linked genes, TM6 and DFR, which were reported to be candidates of ms15 (male sterile-15) and aw (anthocyanin without) locus, respectively, were knocked out simultaneously in two elite tomato inbred lines. Mutagenesis of both genes generated green hypocotyl male-sterile (GHMS) lines. The GHMS lines exhibited male sterility across different genetic backgrounds and environmental conditions. They also showed green hypocotyl due to defective anthocyanin accumulation, which serves as a reliable visible marker for selecting male-sterile plants at the seedling stage. We further proposed a strategy for multiplying the GHMS system and verified its high efficiency in stable male sterility propagation. Moreover, elite hybrid seeds were produced using GHMS system for potential side effects evaluation, and no adverse influences were found on seed yield, seed quality as well as important agronomic traits. This study provides a practical approach for the rapid generation and feasible application of male sterility in tomato hybrid breeding.
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Affiliation(s)
- Ming Zhou
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China), Ministry of Agriculture, Beijing Institute of Vegetable Science, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China
| | - Lei Deng
- State Key Laboratory of Plant Genomics, National Centre for Plant Gene Research (Beijing), Institute of Genetics and Developmental Biology, Innovative Academy for Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
| | - Guoliang Yuan
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China), Ministry of Agriculture, Beijing Institute of Vegetable Science, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China
| | - Wei Zhao
- State Key Laboratory of Plant Genomics, National Centre for Plant Gene Research (Beijing), Institute of Genetics and Developmental Biology, Innovative Academy for Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
| | - Mingyang Ma
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China), Ministry of Agriculture, Beijing Institute of Vegetable Science, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China
| | - Chuanlong Sun
- State Key Laboratory of Plant Genomics, National Centre for Plant Gene Research (Beijing), Institute of Genetics and Developmental Biology, Innovative Academy for Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
| | - Minmin Du
- Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, College of Horticulture, China Agricultural University, Beijing, 100193, China.
| | - Chuanyou Li
- State Key Laboratory of Plant Genomics, National Centre for Plant Gene Research (Beijing), Institute of Genetics and Developmental Biology, Innovative Academy for Seed Design, Chinese Academy of Sciences, Beijing, 100101, China.
| | - Changbao Li
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China), Ministry of Agriculture, Beijing Institute of Vegetable Science, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China.
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Ahmad I, Zhu G, Zhou G, Younas MU, Suliman MSE, Liu J, Zhu YM, Salih EGI. Integrated approaches for increasing plant yield under salt stress. FRONTIERS IN PLANT SCIENCE 2023; 14:1215343. [PMID: 37534293 PMCID: PMC10393426 DOI: 10.3389/fpls.2023.1215343] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 06/28/2023] [Indexed: 08/04/2023]
Abstract
Salt stress affects large cultivated areas worldwide, thus causing remarkable reductions in plant growth and yield. To reduce the negative effects of salt stress on plant growth and yield, plant hormones, nutrient absorption, and utilization, as well as developing salt-tolerant varieties and enhancing their morpho-physiological activities, are some integrative approaches to coping with the increasing incidence of salt stress. Numerous studies have been conducted to investigate the critical impacts of these integrative approaches on plant growth and yield. However, a comprehensive review of these integrative approaches, that regulate plant growth and yield under salt stress, is still in its early stages. The review focused on the major issues of nutrient absorption and utilization by plants, as well as the development of salt tolerance varieties under salt stress. In addition, we explained the effects of these integrative approaches on the crop's growth and yield, illustrated the roles that phytohormones play in improving morpho-physiological activities, and identified some relevant genes involve in these integrative approaches when the plant is subjected to salt stress. The current review demonstrated that HA with K enhance plant morpho-physiological activities and soil properties. In addition, NRT and NPF genes family enhance nutrients uptake, NHX1, SOS1, TaNHX, AtNHX1, KDML, RD6, and SKC1, maintain ion homeostasis and membrane integrity to cope with the adverse effects of salt stress, and sd1/Rht1, AtNHX1, BnaMAX1s, ipal-1D, and sft improve the plant growth and yield in different plants. The primary purpose of this investigation is to provide a comprehensive review of the performance of various strategies under salt stress, which might assist in further interpreting the mechanisms that plants use to regulate plant growth and yield under salt stress.
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Affiliation(s)
- Irshad Ahmad
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Guanglong Zhu
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Guisheng Zhou
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Yangzhou University, Yangzhou, China
- Key Lab of Crop Genetics & Physiology of Jiangsu Province, Yangzhou University, Yangzhou, China
| | - Muhammad Usama Younas
- Department of Crop Genetics and Breeding, College of Agriculture, Yangzhou University, Yangzhou, China
| | - Mohamed Suliman Eltyeb Suliman
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Yangzhou University, Yangzhou, China
- Faculty of Forestry, University of Khartoum, Khartoum North, Sudan
| | - Jiao Liu
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Yi ming Zhu
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Ebtehal Gabralla Ibrahim Salih
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Yangzhou University, Yangzhou, China
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9
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Guo Y, Zhao G, Gao X, Zhang L, Zhang Y, Cai X, Yuan X, Guo X. CRISPR/Cas9 gene editing technology: a precise and efficient tool for crop quality improvement. PLANTA 2023; 258:36. [PMID: 37395789 DOI: 10.1007/s00425-023-04187-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 06/18/2023] [Indexed: 07/04/2023]
Abstract
MAIN CONCLUSION This review provides a direction for crop quality improvement and ideas for further research on the application of CRISPR/Cas9 gene editing technology for crop improvement. Various important crops, such as wheat, rice, soybean and tomato, are among the main sources of food and energy for humans. Breeders have long attempted to improve crop yield and quality through traditional breeding methods such as crossbreeding. However, crop breeding progress has been slow due to the limitations of traditional breeding methods. In recent years, clustered regularly spaced short palindromic repeat (CRISPR)/Cas9 gene editing technology has been continuously developed. And with the refinement of crop genome data, CRISPR/Cas9 technology has enabled significant breakthroughs in editing specific genes of crops due to its accuracy and efficiency. Precise editing of certain key genes in crops by means of CRISPR/Cas9 technology has improved crop quality and yield and has become a popular strategy for many breeders to focus on and adopt. In this paper, the present status and achievements of CRISPR/Cas9 gene technology as applied to the improvement of quality in several crops are reviewed. In addition, the shortcomings, challenges and development prospects of CRISPR/Cas9 gene editing technology are discussed.
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Affiliation(s)
- Yingxin Guo
- College of Biological and Chemical Engineering, Qilu Institute of Technology, Jinan, 250200, Shandong, People's Republic of China
| | - Guangdong Zhao
- College of Life Sciences, Linyi University, Linyi, 276000, Shandong, People's Republic of China
| | - Xing Gao
- College of Biological and Chemical Engineering, Qilu Institute of Technology, Jinan, 250200, Shandong, People's Republic of China
| | - Lin Zhang
- College of Biological and Chemical Engineering, Qilu Institute of Technology, Jinan, 250200, Shandong, People's Republic of China
| | - Yanan Zhang
- College of Biological and Chemical Engineering, Qilu Institute of Technology, Jinan, 250200, Shandong, People's Republic of China
| | - Xiaoming Cai
- College of Biological and Chemical Engineering, Qilu Institute of Technology, Jinan, 250200, Shandong, People's Republic of China
| | - Xuejiao Yuan
- College of Biological and Chemical Engineering, Qilu Institute of Technology, Jinan, 250200, Shandong, People's Republic of China.
| | - Xingqi Guo
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, 271018, Shandong, People's Republic of China.
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10
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Kaur G, Abugu M, Tieman D. The dissection of tomato flavor: biochemistry, genetics, and omics. FRONTIERS IN PLANT SCIENCE 2023; 14:1144113. [PMID: 37346138 PMCID: PMC10281629 DOI: 10.3389/fpls.2023.1144113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 05/02/2023] [Indexed: 06/23/2023]
Abstract
Flavor and quality are the major drivers of fruit consumption in the US. However, the poor flavor of modern commercial tomato varieties is a major cause of consumer dissatisfaction. Studies in flavor research have informed the role of volatile organic compounds in improving overall liking and sweetness of tomatoes. These studies have utilized and applied the tools of molecular biology, genetics, biochemistry, omics, machine learning, and gene editing to elucidate the compounds and biochemical pathways essential for good tasting fruit. Here, we discuss the progress in identifying the biosynthetic pathways and chemical modifications of important tomato volatile compounds. We also summarize the advances in developing highly flavorful tomato varieties and future steps toward developing a "perfect tomato".
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Affiliation(s)
- Gurleen Kaur
- Horticultural Sciences Department, University of Florida, Gainesville, FL, United States
| | - Modesta Abugu
- Department of Horticulture Science, North Carolina State University, Raleigh, NC, United States
| | - Denise Tieman
- Horticultural Sciences Department, University of Florida, Gainesville, FL, United States
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11
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Chaudhry A, Hassan AU, Khan SH, Abbasi A, Hina A, Khan MT, Abdelsalam NR. The changing landscape of agriculture: role of precision breeding in developing smart crops. Funct Integr Genomics 2023; 23:167. [PMID: 37204621 DOI: 10.1007/s10142-023-01093-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 05/08/2023] [Accepted: 05/09/2023] [Indexed: 05/20/2023]
Abstract
Food plants play a crucial role in human survival, providing them essential nutrients. However, traditional breeding methods have not been able to keep up with the demands of the growing population. The improvement of food plants aims to increase yield, quality, and resistance to biotic and abiotic stresses. With CRISPR/Cas9, researchers can identify and edit key genes conferring desirable qualities in agricultural plants, including increased yield, enhanced product quality attributes, and increased tolerance to biotic and abiotic challenges. These modifications have enabled the creation of "smart crops" that exhibit rapid climatic adaptation, resistance to extreme weather conditions and high yield and quality. The use of CRISPR/Cas9 combined with viral vectors or growth regulators has made it possible to produce more efficient modified plants with certain conventional breeding methods. However, ethical and regulatory aspects of this technology must be carefully considered. Proper regulation and application of genome editing technology can bring immense benefits to agriculture and food security. This article provides an overview of genetically modified genes and conventional as well as emerging tools, including CRISPR/Cas9, that have been utilized to enhance the quality of plants/fruits and their products. The review also discusses the challenges and prospects associated with these techniques.
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Affiliation(s)
- Amna Chaudhry
- Centre of Agricultural Biochemistry and Biotechnology (CABB), University of Agriculture, Faisalabad, 38040, Pakistan
- Center for Advanced Studies in Agriculture and Food Security (CASAFS), University of Agriculture, Faisalabad, 38040, Pakistan
| | - Ahtsham Ul Hassan
- Centre of Agricultural Biochemistry and Biotechnology (CABB), University of Agriculture, Faisalabad, 38040, Pakistan
| | - Sultan Habibullah Khan
- Centre of Agricultural Biochemistry and Biotechnology (CABB), University of Agriculture, Faisalabad, 38040, Pakistan
- Center for Advanced Studies in Agriculture and Food Security (CASAFS), University of Agriculture, Faisalabad, 38040, Pakistan
| | - Asim Abbasi
- Department of Environmental Sciences, Kohsar University, Murree, 47150, Pakistan.
| | - Aiman Hina
- Soybean Research Institute, Ministry of Agriculture (MOA) Key Laboratory of Biology and Genetic Improvement of Soybean (General), MOA National Centre for Soybean Improvement, State Key Laboratory for Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095, China.
| | - Muhammad Tajammal Khan
- Institute of Botany, University of the Punjab, Lahore, 54590, Pakistan
- Division of Science and Technology, Department of Botany, University of Education, Lahore, Pakistan
| | - Nader R Abdelsalam
- Agricultural Botany Department, Faculty of Agriculture (Saba Basha), Alexandria University, Alexandria, 21531, Egypt
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Ravikiran KT, Thribhuvan R, Sheoran S, Kumar S, Kushwaha AK, Vineeth TV, Saini M. Tailoring crops with superior product quality through genome editing: an update. PLANTA 2023; 257:86. [PMID: 36949234 DOI: 10.1007/s00425-023-04112-4] [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: 09/06/2022] [Accepted: 02/28/2023] [Indexed: 06/18/2023]
Abstract
In this review, using genome editing, the quality trait alterations in important crops have been discussed, along with the challenges encountered to maintain the crop products' quality. The delivery of economic produce with superior quality is as important as high yield since it dictates consumer's acceptance and end use. Improving product quality of various agricultural and horticultural crops is one of the important targets of plant breeders across the globe. Significant achievements have been made in various crops using conventional plant breeding approaches, albeit, at a slower rate. To keep pace with ever-changing consumer tastes and preferences and industry demands, such efforts must be supplemented with biotechnological tools. Fortunately, many of the quality attributes are resultant of well-understood biochemical pathways with characterized genes encoding enzymes at each step. Targeted mutagenesis and transgene transfer have been instrumental in bringing out desired qualitative changes in crops but have suffered from various pitfalls. Genome editing, a technique for methodical and site-specific modification of genes, has revolutionized trait manipulation. With the evolution of versatile and cost effective CRISPR/Cas9 system, genome editing has gained significant traction and is being applied in several crops. The availability of whole genome sequences with the advent of next generation sequencing (NGS) technologies further enhanced the precision of these techniques. CRISPR/Cas9 system has also been utilized for desirable modifications in quality attributes of various crops such as rice, wheat, maize, barley, potato, tomato, etc. The present review summarizes salient findings and achievements of application of genome editing for improving product quality in various crops coupled with pointers for future research endeavors.
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Affiliation(s)
- K T Ravikiran
- ICAR-Central Soil Salinity Research Institute, Regional Research Station, Lucknow, Uttar Pradesh, India
| | - R Thribhuvan
- ICAR-Central Research Institute for Jute and Allied Fibres, Barrackpore, West Bengal, India
| | - Seema Sheoran
- ICAR-Indian Agricultural Research Institute, Regional Station, Karnal, Haryana, India.
| | - Sandeep Kumar
- ICAR-Indian Institute of Natural Resins and Gums, Ranchi, Jharkhand, India
| | - Amar Kant Kushwaha
- ICAR-Central Institute for Subtropical Horticulture, Lucknow, Uttar Pradesh, India
| | - T V Vineeth
- ICAR-Central Soil Salinity Research Institute, Regional Research Station, Bharuch, Gujarat, India
- Department of Plant Physiology, College of Agriculture, Kerala Agricultural University, Vellanikkara, Thrissur, Kerala, India
| | - Manisha Saini
- Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, India
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Tiwari JK, Singh AK, Behera TK. CRISPR/Cas genome editing in tomato improvement: Advances and applications. FRONTIERS IN PLANT SCIENCE 2023; 14:1121209. [PMID: 36909403 PMCID: PMC9995852 DOI: 10.3389/fpls.2023.1121209] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Accepted: 02/02/2023] [Indexed: 06/12/2023]
Abstract
The narrow genetic base of tomato poses serious challenges in breeding. Hence, with the advent of clustered regularly interspaced short palindromic repeat (CRISPR)-associated protein9 (CRISPR/Cas9) genome editing, fast and efficient breeding has become possible in tomato breeding. Many traits have been edited and functionally characterized using CRISPR/Cas9 in tomato such as plant architecture and flower characters (e.g. leaf, stem, flower, male sterility, fruit, parthenocarpy), fruit ripening, quality and nutrition (e.g., lycopene, carotenoid, GABA, TSS, anthocyanin, shelf-life), disease resistance (e.g. TYLCV, powdery mildew, late blight), abiotic stress tolerance (e.g. heat, drought, salinity), C-N metabolism, and herbicide resistance. CRISPR/Cas9 has been proven in introgression of de novo domestication of elite traits from wild relatives to the cultivated tomato and vice versa. Innovations in CRISPR/Cas allow the use of online tools for single guide RNA design and multiplexing, cloning (e.g. Golden Gate cloning, GoldenBraid, and BioBrick technology), robust CRISPR/Cas constructs, efficient transformation protocols such as Agrobacterium, and DNA-free protoplast method for Cas9-gRNAs ribonucleoproteins (RNPs) complex, Cas9 variants like PAM-free Cas12a, and Cas9-NG/XNG-Cas9, homologous recombination (HR)-based gene knock-in (HKI) by geminivirus replicon, and base/prime editing (Target-AID technology). This mini-review highlights the current research advances in CRISPR/Cas for fast and efficient breeding of tomato.
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Affiliation(s)
- Jagesh Kumar Tiwari
- Division of Vegetable Improvement, Indian Council of Agricultural Research-Indian Institute of Vegetable Research, Varanasi, Uttar Pradesh, India
| | - Anand Kumar Singh
- Division of Horticulture, Indian Council of Agricultural Research, Krishi Anusandhan Bhawan - II, Pusa, New Delhi, India
| | - Tusar Kanti Behera
- Division of Vegetable Improvement, Indian Council of Agricultural Research-Indian Institute of Vegetable Research, Varanasi, Uttar Pradesh, India
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Bhandari P, Kim J, Lee TG. Genetic architecture of fresh-market tomato yield. BMC PLANT BIOLOGY 2023; 23:18. [PMID: 36624387 PMCID: PMC9827693 DOI: 10.1186/s12870-022-04018-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 12/22/2022] [Indexed: 06/17/2023]
Abstract
BACKGROUND The fresh-market tomato (Solanum lycopersicum) is bred for direct consumption and is selected for a high yield of large fruits. To understand the genetic variations (distinct types of DNA sequence polymorphism) that influence the yield, we collected the phenotypic variations in the yields of total fruit, extra-large-sized fruit, small-sized fruit, or red-colored fruit from 68 core inbred contemporary U.S. fresh-market tomatoes for three consecutive years and the genomic information in 8,289,741 single nucleotide polymorphism (SNP) positions from the whole-genome resequencing of these tomatoes. RESULTS Genome-wide association (GWA) mapping using the SNP data with or without SNP filtering steps using the regularization methods, validated with quantitative trait loci (QTL) linkage mapping, identified 18 significant association signals for traits evaluated. Among them, 10 of which were not located within genomic regions previously identified as being associated with fruit size/shape. When mapping-driven association signals [558 SNPs associated with 28 yield (component) traits] were used to calculate genomic estimated breeding values (GEBVs) of evaluated traits, the prediction accuracies of the extra-large-sized fruit and small-sized fruit yields were higher than those of the total and red-colored fruit yields, as we tested the generated breeding values in inbred tomatoes and F2 populations. Improved accuracy in GEBV calculation of evaluated traits was achieved by using 364 SNPs identified using the regularization methods. CONCLUSIONS Together, these results provide an understanding of the genetic variations underlying the heritable phenotypic variability in yield in contemporary tomato breeding and the information necessary for improving such economically important and complex quantitative trait through breeding.
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Affiliation(s)
- Prashant Bhandari
- Horticultural Sciences Department, University of Florida, Gainesville, FL, 32611, USA
| | - Juhee Kim
- Gulf Coast Research and Education Center, University of Florida, Wimauma, FL, 33598, USA
| | - Tong Geon Lee
- Horticultural Sciences Department, University of Florida, Gainesville, FL, 32611, USA.
- Gulf Coast Research and Education Center, University of Florida, Wimauma, FL, 33598, USA.
- Plant Breeders Working Group, University of Florida, Gainesville, FL, 32611, USA.
- Plant Molecular and Cellular Biology Graduate Program, University of Florida, Gainesville, FL, 32611, USA.
- Bayer, Chesterfield, MO, 63017, USA.
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Schenstnyi K, Strauß A, Dressel A, Morbitzer R, Wunderlich M, Andrade AG, Phan TTT, Aguilera PDLA, Brancato C, Berendzen KW, Lahaye T. The tomato resistance gene Bs4 suppresses leaf watersoaking phenotypes induced by AvrHah1, a transcription activator-like effector from tomato-pathogenic xanthomonads. THE NEW PHYTOLOGIST 2022; 236:1856-1870. [PMID: 36056465 DOI: 10.1111/nph.18456] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 08/19/2022] [Indexed: 06/15/2023]
Abstract
The Xanthomonas transcription activator-like effector (TALE) protein AvrBs3 transcriptionally activates the executor-type resistance (R) gene Bs3 from pepper (Capsicum annuum), thereby triggering a hypersensitive cell death reaction (HR). AvrBs3 also triggers an HR in tomato (Solanum lycopersicum) upon recognition by the nucleotide-binding leucine-rich repeat (NLR) R protein Bs4. Whether the executor-type R protein Bs3 and the NLR-type R protein Bs4 use common or distinct signalling components to trigger an HR remains unclear. CRISPR/Cas9-mutagenesis revealed, that the immune signalling node EDS1 is required for Bs4- but not for Bs3-dependent HR, suggesting that NLR- and executor-type R proteins trigger an HR via distinct signalling pathways. CRISPR/Cas9-mutagenesis also revealed that tomato Bs4 suppresses the virulence function of both TALEs, the HR-inducing AvrBs3 protein and of AvrHah1, a TALE that does not trigger an HR in tomato. Analysis of AvrBs3- and AvrHah1-induced host transcripts and disease phenotypes in CRISPR/Cas9-induced bs4 mutant plants indicates that both TALEs target orthologous transcription factor genes to promote disease in tomato and pepper host plants. Our studies display that tomato mutants lacking the TALE-sensing Bs4 protein provide a novel platform to either uncover TALE-induced disease phenotypes or genetically dissect components of executor-triggered HR.
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Affiliation(s)
- Kyrylo Schenstnyi
- University of Tübingen, ZMBP - General Genetics, Auf der Morgenstelle 32, 72076, Tuebingen, Germany
| | - Annett Strauß
- University of Tübingen, ZMBP - General Genetics, Auf der Morgenstelle 32, 72076, Tuebingen, Germany
| | - Angela Dressel
- University of Tübingen, ZMBP - General Genetics, Auf der Morgenstelle 32, 72076, Tuebingen, Germany
| | - Robert Morbitzer
- University of Tübingen, ZMBP - General Genetics, Auf der Morgenstelle 32, 72076, Tuebingen, Germany
| | - Markus Wunderlich
- University of Tübingen, ZMBP - General Genetics, Auf der Morgenstelle 32, 72076, Tuebingen, Germany
| | - Ana Gabriela Andrade
- University of Tübingen, ZMBP - General Genetics, Auf der Morgenstelle 32, 72076, Tuebingen, Germany
| | - Trang-Thi-Thu Phan
- University of Tübingen, ZMBP - General Genetics, Auf der Morgenstelle 32, 72076, Tuebingen, Germany
| | | | - Caterina Brancato
- University of Tübingen, ZMBP - Central Facilities, Auf der Morgenstelle 32, 72076, Tuebingen, Germany
| | - Kenneth Wayne Berendzen
- University of Tübingen, ZMBP - Central Facilities, Auf der Morgenstelle 32, 72076, Tuebingen, Germany
| | - Thomas Lahaye
- University of Tübingen, ZMBP - General Genetics, Auf der Morgenstelle 32, 72076, Tuebingen, Germany
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Li R, Maioli A, Yan Z, Bai Y, Valentino D, Milani AM, Pompili V, Comino C, Lanteri S, Moglia A, Acquadro A. CRISPR/Cas9-Based Knock-Out of the PMR4 Gene Reduces Susceptibility to Late Blight in Two Tomato Cultivars. Int J Mol Sci 2022; 23:ijms232314542. [PMID: 36498869 PMCID: PMC9735651 DOI: 10.3390/ijms232314542] [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: 10/14/2022] [Revised: 11/09/2022] [Accepted: 11/16/2022] [Indexed: 11/24/2022] Open
Abstract
Phytophthora infestans, the causal agent of late blight (LB) in tomato (Solanum lycopersicum L.), is a devastating disease and a serious concern for plant productivity. The presence of susceptibility (S) genes in plants facilitates pathogen proliferation; thus, disabling these genes may help provide a broad-spectrum and durable type of tolerance/resistance. Previous studies on Arabidopsis and tomato have highlighted that knock-out mutants of the PMR4 susceptibility gene are tolerant to powdery mildew. Moreover, PMR4 knock-down in potato has been shown to confer tolerance to LB. To verify the same effect in tomato in the present study, a CRISPR-Cas9 vector containing four single guide RNAs (sgRNAs: sgRNA1, sgRNA6, sgRNA7, and sgRNA8), targeting as many SlPMR4 regions, was introduced via Agrobacterium-tumefaciens-mediated transformation into two widely grown Italian tomato cultivars: 'San Marzano' (SM) and 'Oxheart' (OX). Thirty-five plants (twenty-six SM and nine OX) were selected and screened to identify the CRISPR/Cas9-induced mutations. The different sgRNAs caused mutation frequencies ranging from 22.1 to 100% and alternatively precise insertions (sgRNA6) or deletions (sgRNA7, sgRNA1, and sgRNA8). Notably, sgRNA7 induced in seven SM genotypes a -7 bp deletion in the homozygous status, whereas sgRNA8 led to the production of fifteen SM genotypes with a biallelic mutation (-7 bp and -2 bp). Selected edited lines were inoculated with P. infestans, and four of them, fully knocked out at the PMR4 locus, showed reduced disease symptoms (reduction in susceptibility from 55 to 80%) compared to control plants. The four SM lines were sequenced using Illumina whole-genome sequencing for deeper characterization without exhibiting any evidence of mutations in the candidate off-target regions. Our results showed, for the first time, a reduced susceptibility to Phytophtora infestans in pmr4 tomato mutants confirming the role of KO PMR4 in providing broad-spectrum protection against pathogens.
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Affiliation(s)
- Ruiling Li
- Plant Genetics and Breeding, Department of Agricultural, Forest and Food Science (DISAFA), University of Torino, 10095 Grugliasco, Italy
| | - Alex Maioli
- Plant Genetics and Breeding, Department of Agricultural, Forest and Food Science (DISAFA), University of Torino, 10095 Grugliasco, Italy
| | - Zhe Yan
- Plant Breeding, Wageningen University & Research, 6708 PB Wageningen, The Netherlands
| | - Yuling Bai
- Plant Breeding, Wageningen University & Research, 6708 PB Wageningen, The Netherlands
| | - Danila Valentino
- Plant Genetics and Breeding, Department of Agricultural, Forest and Food Science (DISAFA), University of Torino, 10095 Grugliasco, Italy
| | - Anna Maria Milani
- Plant Genetics and Breeding, Department of Agricultural, Forest and Food Science (DISAFA), University of Torino, 10095 Grugliasco, Italy
| | - Valerio Pompili
- Plant Genetics and Breeding, Department of Agricultural, Forest and Food Science (DISAFA), University of Torino, 10095 Grugliasco, Italy
| | - Cinzia Comino
- Plant Genetics and Breeding, Department of Agricultural, Forest and Food Science (DISAFA), University of Torino, 10095 Grugliasco, Italy
| | - Sergio Lanteri
- Plant Genetics and Breeding, Department of Agricultural, Forest and Food Science (DISAFA), University of Torino, 10095 Grugliasco, Italy
| | - Andrea Moglia
- Plant Genetics and Breeding, Department of Agricultural, Forest and Food Science (DISAFA), University of Torino, 10095 Grugliasco, Italy
| | - Alberto Acquadro
- Plant Genetics and Breeding, Department of Agricultural, Forest and Food Science (DISAFA), University of Torino, 10095 Grugliasco, Italy
- Correspondence:
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CRISPR/Cas9 Technique for Temperature, Drought, and Salinity Stress Responses. Curr Issues Mol Biol 2022; 44:2664-2682. [PMID: 35735623 PMCID: PMC9221872 DOI: 10.3390/cimb44060182] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 06/02/2022] [Accepted: 06/06/2022] [Indexed: 02/07/2023] Open
Abstract
Global warming and climate change have severely affected plant growth and food production. Therefore, minimizing these effects is required for sustainable crop yields. Understanding the molecular mechanisms in response to abiotic stresses and improving agricultural traits to make crops tolerant to abiotic stresses have been going on unceasingly. To generate desirable varieties of crops, traditional and molecular breeding techniques have been tried, but both approaches are time-consuming. Clustered regularly interspaced short palindromic repeat/Cas9 (CRISPR/Cas9) and transcription activator-like effector nucleases (TALENs) are genome-editing technologies that have recently attracted the attention of plant breeders for genetic modification. These technologies are powerful tools in the basic and applied sciences for understanding gene function, as well as in the field of crop breeding. In this review, we focus on the application of genome-editing systems in plants to understand gene function in response to abiotic stresses and to improve tolerance to abiotic stresses, such as temperature, drought, and salinity stresses.
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Defense Strategies: The Role of Transcription Factors in Tomato-Pathogen Interaction. BIOLOGY 2022; 11:biology11020235. [PMID: 35205101 PMCID: PMC8869667 DOI: 10.3390/biology11020235] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 01/25/2022] [Accepted: 01/28/2022] [Indexed: 01/21/2023]
Abstract
Simple Summary Tomato is one of the most cultivated and economically important vegetable crops throughout the world. It is affected by a panoply of different pathogens that cause infectious diseases that reduce tomato yield and affect product quality, with the most common symptoms being wilts, leaf spots/blights, fruit spots, and rots. To survive, tomato, as other plants, have developed elaborate defense mechanisms against plant pathogens. Among several genes already identified in tomato response to pathogens, we highlight those encoding the transcription factors (TFs). TFs are regulators of gene expression and are involved in large-scale biological phenomena. Here, we present an overview of recent studies of tomato TFs regarding defense responses to pathogen attack, selected for their abundance, importance, and availability of functionally well-characterized members. Tomato TFs’ roles and the possibilities related to their use for genetic engineering in view of crop breeding are presented. Abstract Tomato, one of the most cultivated and economically important vegetable crops throughout the world, is affected by a panoply of different pathogens that reduce yield and affect product quality. The study of tomato–pathogen system arises as an ideal system for better understanding the molecular mechanisms underlying disease resistance, offering an opportunity of improving yield and quality of the products. Among several genes already identified in tomato response to pathogens, we highlight those encoding the transcription factors (TFs). TFs act as transcriptional activators or repressors of gene expression and are involved in large-scale biological phenomena. They are key regulators of central components of plant innate immune system and basal defense in diverse biological processes, including defense responses to pathogens. Here, we present an overview of recent studies of tomato TFs regarding defense responses to biotic stresses. Hence, we focus on different families of TFs, selected for their abundance, importance, and availability of functionally well-characterized members in response to pathogen attack. Tomato TFs’ roles and possibilities related to their use for engineering pathogen resistance in tomato are presented. With this review, we intend to provide new insights into the regulation of tomato defense mechanisms against invading pathogens in view of plant breeding.
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Hoshikawa K, Pham D, Ezura H, Schafleitner R, Nakashima K. Genetic and Molecular Mechanisms Conferring Heat Stress Tolerance in Tomato Plants. FRONTIERS IN PLANT SCIENCE 2021; 12:786688. [PMID: 35003175 PMCID: PMC8739973 DOI: 10.3389/fpls.2021.786688] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 11/29/2021] [Indexed: 05/17/2023]
Abstract
Climate change is a major threat to global food security. Changes in climate can directly impact food systems by reducing the production and genetic diversity of crops and their wild relatives, thereby restricting future options for breeding improved varieties and reducing the ability to adapt crops to future challenges. The global surface temperature is predicted to rise by an average of 0.3°C during the next decade, and the Paris Agreement (Paris Climate Accords) aims to limit global warming to below an average of 2°C, preferably to 1.5°C compared to pre-industrial levels. Even if the goal of the Paris Agreement can be met, the predicted rise in temperatures will increase the likelihood of extreme weather events, including heatwaves, making heat stress (HS) a major global abiotic stress factor for many crops. HS can have adverse effects on plant morphology, physiology, and biochemistry during all stages of vegetative and reproductive development. In fruiting vegetables, even moderate HS reduces fruit set and yields, and high temperatures may result in poor fruit quality. In this review, we emphasize the effects of abiotic stress, especially at high temperatures, on crop plants, such as tomatoes, touching upon key processes determining plant growth and yield. Specifically, we investigated the molecular mechanisms involved in HS tolerance and the challenges of developing heat-tolerant tomato varieties. Finally, we discuss a strategy for effectively improving the heat tolerance of vegetable crops.
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Affiliation(s)
- Ken Hoshikawa
- Japan International Research Center for Agricultural Sciences, Tsukuba, Japan
- Tsukuba Plant Innovation Research Center, University of Tsukuba, Tsukuba, Japan
- Vegetable Diversity and Improvement, World Vegetable Center, Tainan, Taiwan
| | - Dung Pham
- Faculty of Biotechnology, Vietnam National University of Agriculture, Hanoi, Vietnam
| | - Hiroshi Ezura
- Tsukuba Plant Innovation Research Center, University of Tsukuba, Tsukuba, Japan
| | | | - Kazuo Nakashima
- Japan International Research Center for Agricultural Sciences, Tsukuba, Japan
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Chandrasekaran M, Boopathi T, Paramasivan M. A status-quo review on CRISPR-Cas9 gene editing applications in tomato. Int J Biol Macromol 2021; 190:120-129. [PMID: 34474054 DOI: 10.1016/j.ijbiomac.2021.08.169] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Revised: 08/09/2021] [Accepted: 08/22/2021] [Indexed: 10/20/2022]
Abstract
Epigenetic changes are emancipated in horticultural crops including tomato due to a variety of environmental factors. These modifications rely on plant phenotypes mediated by genetic architecture consequently resulting in hereditary epigenetic memory. Genome editing strategies like CRISPR (Clustered Regularly Interspaced Short Palindromic Repeat)/CRISPR-associated protein 9 (Cas9) technologies have revolutionized plants biology foreseeing stable inheritance of epigenetic modifications. CRISPR/Cas9 strategy poses as explicit advancement in providing precise genome editing with minimal off-target mutations, ease of experimental design, higher efficiency, versatility, and cost-effectiveness. Dicot crops, especially tomato remain an ideal candidate for CRISPR/Cas9 based gene modulations thereby augmenting productivity and yields. In the present review, key questions on CRISPR/Cas9 applications aid in enhanced growth based on optimal gene discovery, de novo modification, trait improvement, and biotic/abiotic stress management are discussed. In addition, comparative scenario in tomato and similar horticultural crops are adequately summarized for the pros and cons. Further, limitations hampering potential benefits and success phenomena of the lab to field transition of gene editing alterations are discussed collaterally in addressing futuristic optimization for CRISPR/Cas9 research in tomato.
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Affiliation(s)
- Murugesan Chandrasekaran
- Department of Food Science and Biotechnology, Sejong University, 209, Neungdong-ro, Gwangjin-gu, Seoul 05006, Republic of Korea.
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