1
|
Elsisi M, Elshiekh M, Sabry N, Aziz M, Attia K, Islam F, Chen J, Abdelrahman M. The genetic orchestra of salicylic acid in plant resilience to climate change induced abiotic stress: critical review. STRESS BIOLOGY 2024; 4:31. [PMID: 38880851 PMCID: PMC11180647 DOI: 10.1007/s44154-024-00160-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 03/12/2024] [Indexed: 06/18/2024]
Abstract
Climate change, driven by human activities and natural processes, has led to critical alterations in varying patterns during cropping seasons and is a vital threat to global food security. The climate change impose several abiotic stresses on crop production systems. These abiotic stresses include extreme temperatures, drought, and salinity, which expose agricultural fields to more vulnerable conditions and lead to substantial crop yield and quality losses. Plant hormones, especially salicylic acid (SA), has crucial roles for plant resiliency under unfavorable environments. This review explores the genetics and molecular mechanisms underlying SA's role in mitigating abiotic stress-induced damage in plants. It also explores the SA biosynthesis pathways, and highlights the regulation of their products under several abiotic stresses. Various roles and possible modes of action of SA in mitigating abiotic stresses are discussed, along with unraveling the genetic mechanisms and genes involved in responses under stress conditions. Additionally, this review investigates molecular pathways and mechanisms through which SA exerts its protective effects, such as redox signaling, cross-talks with other plant hormones, and mitogen-activated protein kinase pathways. Moreover, the review discusses potentials of using genetic engineering approaches, such as CRISPR technology, for deciphering the roles of SA in enhancing plant resilience to climate change related abiotic stresses. This comprehensive analysis bridges the gap between genetics of SA role in response to climate change related stressors. Overall goal is to highlight SA's significance in safeguarding plants and by offering insights of SA hormone for sustainable agriculture under challenging environmental conditions.
Collapse
Affiliation(s)
- Mohamed Elsisi
- School of Biotechnology, Nile University, Giza, 12588, Egypt
| | - Moaz Elshiekh
- School of Biotechnology, Nile University, Giza, 12588, Egypt
| | - Nourine Sabry
- School of Biotechnology, Nile University, Giza, 12588, Egypt
| | - Mark Aziz
- School of Biotechnology, Nile University, Giza, 12588, Egypt
| | - Kotb Attia
- College of Science, King Saud University, P.O. Box 2455, 11451, Riyadh, Saudi Arabia
| | - Faisal Islam
- International Genome Center, Jiangsu University, Zhenjiang, 212013, China.
| | - Jian Chen
- International Genome Center, Jiangsu University, Zhenjiang, 212013, China.
| | | |
Collapse
|
2
|
Wang C, Wang Z, Cai Y, Zhu Z, Yu D, Hong L, Wang Y, Lv W, Zhao Q, Si L, Liu K, Han B. A higher-yield hybrid rice is achieved by assimilating a dominant heterotic gene in inbred parental lines. PLANT BIOTECHNOLOGY JOURNAL 2024; 22:1669-1680. [PMID: 38450899 PMCID: PMC11123404 DOI: 10.1111/pbi.14295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Revised: 12/22/2023] [Accepted: 01/09/2024] [Indexed: 03/08/2024]
Abstract
The exploitation of heterosis to integrate parental advantages is one of the fastest and most efficient ways of rice breeding. The genomic architecture of heterosis suggests that the grain yield is strongly correlated with the accumulation of numerous rare superior alleles with positive dominance. However, the improvements in yield of hybrid rice have shown a slowdown or even plateaued due to the limited availability of complementary superior alleles. In this study, we achieved a considerable increase in grain yield of restorer lines by inducing an alternative splicing event in a heterosis gene OsMADS1 through CRISPR-Cas9, which accounted for approximately 34.1%-47.5% of yield advantage over their corresponding inbred rice cultivars. To achieve a higher yield in hybrid rice, we crossed the gene-edited restorer parents harbouring OsMADS1GW3p6 with the sterile lines to develop new rice hybrids. In two-line hybrid rice Guang-liang-you 676 (GLY676), the yield of modified hybrids carrying the homozygous heterosis gene OsMADS1GW3p6 significantly exceeded that of the original hybrids with heterozygous OsMADS1. Similarly, the gene-modified F1 hybrids with heterozygous OsMADS1GW3p6 increased grain yield by over 3.4% compared to the three-line hybrid rice Quan-you-si-miao (QYSM) with the homozygous genotype of OsMADS1. Our study highlighted the great potential in increasing the grain yield of hybrid rice by pyramiding a single heterosis gene via CRISPR-Cas9. Furthermore, these results demonstrated that the incomplete dominance of heterosis genes played a major role in yield-related heterosis and provided a promising strategy for breeding higher-yielding rice varieties above what is currently achievable.
Collapse
Affiliation(s)
- Changsheng Wang
- National Center for Gene Research, State Key Laboratory of Plant Molecular Genetics, Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and EcologyChinese Academy of SciencesShanghaiChina
| | - Ziqun Wang
- National Center for Gene Research, State Key Laboratory of Plant Molecular Genetics, Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and EcologyChinese Academy of SciencesShanghaiChina
| | - Yunxiao Cai
- National Center for Gene Research, State Key Laboratory of Plant Molecular Genetics, Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and EcologyChinese Academy of SciencesShanghaiChina
- School of Life Science and TechnologyShanghaiTech UniversityShanghaiChina
| | - Zhou Zhu
- National Center for Gene Research, State Key Laboratory of Plant Molecular Genetics, Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and EcologyChinese Academy of SciencesShanghaiChina
| | - Danheng Yu
- Department of Life Sciences, Imperial College LondonSouth KensingtonLondonUK
| | - Lei Hong
- National Center for Gene Research, State Key Laboratory of Plant Molecular Genetics, Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and EcologyChinese Academy of SciencesShanghaiChina
| | - Yongchun Wang
- National Center for Gene Research, State Key Laboratory of Plant Molecular Genetics, Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and EcologyChinese Academy of SciencesShanghaiChina
| | - Wei Lv
- National Center for Gene Research, State Key Laboratory of Plant Molecular Genetics, Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and EcologyChinese Academy of SciencesShanghaiChina
| | - Qiang Zhao
- National Center for Gene Research, State Key Laboratory of Plant Molecular Genetics, Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and EcologyChinese Academy of SciencesShanghaiChina
| | - Lizhen Si
- National Center for Gene Research, State Key Laboratory of Plant Molecular Genetics, Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and EcologyChinese Academy of SciencesShanghaiChina
| | - Kun Liu
- National Center for Gene Research, State Key Laboratory of Plant Molecular Genetics, Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and EcologyChinese Academy of SciencesShanghaiChina
| | - Bin Han
- National Center for Gene Research, State Key Laboratory of Plant Molecular Genetics, Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and EcologyChinese Academy of SciencesShanghaiChina
| |
Collapse
|
3
|
Zhang H, Liang M, Chen J, Wang H, Ma L. Rapid generation of fragrant thermo-sensitive genic male sterile rice with enhanced disease resistance via CRISPR/Cas9. PLANTA 2024; 259:112. [PMID: 38581602 DOI: 10.1007/s00425-024-04392-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 03/17/2024] [Indexed: 04/08/2024]
Abstract
MAIN CONCLUSION The three, by mutagenesis produced genes OsPi21, OsXa5, and OsBADH2, generated novel lines exhibiting desired fragrance and improved resistance. Elite sterile lines are the basis for hybrid rice breeding, and rice quality and disease resistance become the focus of new sterile lines breeding. Since there are few sterile lines with fragrance and high resistance to blast and bacterial blight at the same time in hybrid rice production, we here integrated the simultaneous mutagenesis of three genes, OsPi21, OsXa5, and OsBADH2, into Zhi 5012S, an elite thermo-sensitive genic male sterile (TGMS) variety, using the CRISPR/Cas9 system, thus eventually generated novel sterile lines would exhibit desired popcorn-like fragrance and improved resistance to blast and bacterial blight but without a loss in major agricultural traits such as yield. Collectively, this study develops valuable germplasm resources for the development of two-line hybrid rice with disease resistance, which provides a way to rapid generation of novel TGMS lines with elite traits.
Collapse
Affiliation(s)
- Huali Zhang
- State Key Laboratory of Rice Biology and Breeding and Chinese National Center for Rice Improvement, China National Rice Research Institute, Hangzhou, 311400, People's Republic of China
| | - Minmin Liang
- State Key Laboratory of Rice Biology and Breeding and Chinese National Center for Rice Improvement, China National Rice Research Institute, Hangzhou, 311400, People's Republic of China
| | - Junyu Chen
- State Key Laboratory of Rice Biology and Breeding and Chinese National Center for Rice Improvement, China National Rice Research Institute, Hangzhou, 311400, People's Republic of China
| | - Huimei Wang
- State Key Laboratory of Rice Biology and Breeding and Chinese National Center for Rice Improvement, China National Rice Research Institute, Hangzhou, 311400, People's Republic of China
| | - Liangyong Ma
- State Key Laboratory of Rice Biology and Breeding and Chinese National Center for Rice Improvement, China National Rice Research Institute, Hangzhou, 311400, People's Republic of China.
| |
Collapse
|
4
|
Bao G, Ashraf U, Li L, Qiao J, Wang C, Zheng Y. Transcription Factor OsbZIP60-like Regulating OsP5CS1 Gene and 2-Acetyl-1-pyrroline (2-AP) Biosynthesis in Aromatic Rice. PLANTS (BASEL, SWITZERLAND) 2023; 13:49. [PMID: 38202357 PMCID: PMC10780308 DOI: 10.3390/plants13010049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 12/17/2023] [Accepted: 12/20/2023] [Indexed: 01/12/2024]
Abstract
The most important volatile in determining the aroma of fragrant rice is 2-Acetyl-1-pyrroline (2-AP); however, the transcriptional regulation mechanism of 2-AP biosynthesis in fragrant rice is still unclear. In this study, Osp5cs1 knockout mutant lines and OsP5CS1 over-expression lines were constructed by the genetic transformation of the Indica rice cultivar, i.e., 'Zhonghua11', which knocks out OsBADH2 to produce fragrance in aromatic rice. The OsP5CS1 gene was also identified as a key gene in the 2-AP biosynthesis pathway of aromatic rice. The OsP5CS1 promoter was used as bait, and the OsbZIP60-like transcription factor was screened by yeast one-hybrid assays. The OsbZIP60-like transcription factor specifically bound to the OsP5CS1 gene. The dual luciferase reporting system found that the OsbZIP60-like transcription factor promoted the transcriptional activation of OsP5CS1. Compared with the wild type, OsP5CS1 gene expression was significantly down-regulated in the Osbzip60-like mutant and resulted in a substantial reduction in 2-AP biosynthesis. Moreover, the OsP5CS1 gene expression was significantly up-regulated in OsbZIP60-like over-expressed plants, and the 2-AP concentrations were also increased, whereas the Osbzip60-like mutants were found to be sensitive to Zn deficiency. Overall, the OsbZIP60-like transcription factor promoted the 2-AP accumulation. This study provides a theoretical basis for the transcriptional regulation mechanism of 2-AP biosynthesis and explores the function of the OsbZIP transcription factor in fragrant rice.
Collapse
Affiliation(s)
- Gegen Bao
- Guangzhou Key Laboratory for Research and Development of Crop Germplasm Resources, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (L.L.); (J.Q.)
- College of Agriculture and Biology, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China;
| | - Umair Ashraf
- Department of Botany, Division of Science and Technology, University of Education, Lahore 54770, Pakistan;
| | - Lin Li
- Guangzhou Key Laboratory for Research and Development of Crop Germplasm Resources, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (L.L.); (J.Q.)
- College of Agriculture and Biology, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China;
| | - Jingxuan Qiao
- Guangzhou Key Laboratory for Research and Development of Crop Germplasm Resources, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (L.L.); (J.Q.)
- College of Agriculture and Biology, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China;
| | - Chunling Wang
- College of Life Science, Huizhou University, Huizhou 516007, China;
| | - Yixiong Zheng
- College of Agriculture and Biology, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China;
| |
Collapse
|
5
|
Tan J, Shen M, Chai N, Liu Q, Liu YG, Zhu Q. Genome editing for plant synthetic metabolic engineering and developmental regulation. JOURNAL OF PLANT PHYSIOLOGY 2023; 291:154141. [PMID: 38016350 DOI: 10.1016/j.jplph.2023.154141] [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: 08/29/2023] [Revised: 10/31/2023] [Accepted: 11/17/2023] [Indexed: 11/30/2023]
Abstract
Plant metabolism and development are a reflection of the orderly expression of genetic information intertwined with the environment interactions. Genome editing is the cornerstone for scientists to modify endogenous genes or introduce exogenous functional genes and metabolic pathways, holding immense potential applications in molecular breeding and biosynthesis. Over the course of nearly a decade of development, genome editing has advanced significantly beyond the simple cutting of double-stranded DNA, now enabling precise base and fragment replacements, regulation of gene expression and translation, as well as epigenetic modifications. However, the utilization of genome editing in plant synthetic metabolic engineering and developmental regulation remains exploratory. Here, we provide an introduction and a comprehensive overview of the editing attributes associated with various CRISPR/Cas tools, along with diverse strategies for the meticulous control of plant metabolic pathways and developments. Furthermore, we discuss the limitations of current approaches and future prospects for genome editing-driven plant breeding.
Collapse
Affiliation(s)
- Jiantao Tan
- Rice Research Institute, Guangdong Academy of Agricultural Sciences, Key Laboratory of Genetics and Breeding of High-Quality Rice in Southern China (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of New Technology in Rice Breeding, Guangdong Rice Engineering Laboratory, Guangzhou, 510640, China.
| | - Mengyuan Shen
- Rice Research Institute, Guangdong Academy of Agricultural Sciences, Key Laboratory of Genetics and Breeding of High-Quality Rice in Southern China (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of New Technology in Rice Breeding, Guangdong Rice Engineering Laboratory, Guangzhou, 510640, China
| | - Nan Chai
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Laboratory for Lingnan Modern Agriculture, College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Qi Liu
- Rice Research Institute, Guangdong Academy of Agricultural Sciences, Key Laboratory of Genetics and Breeding of High-Quality Rice in Southern China (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of New Technology in Rice Breeding, Guangdong Rice Engineering Laboratory, Guangzhou, 510640, China
| | - Yao-Guang Liu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Laboratory for Lingnan Modern Agriculture, College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Qinlong Zhu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Laboratory for Lingnan Modern Agriculture, College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China.
| |
Collapse
|
6
|
Chen YH, Lu J, Yang X, Huang LC, Zhang CQ, Liu QQ, Li QF. Gene editing of non-coding regulatory DNA and its application in crop improvement. JOURNAL OF EXPERIMENTAL BOTANY 2023; 74:6158-6175. [PMID: 37549968 DOI: 10.1093/jxb/erad313] [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: 02/23/2023] [Accepted: 08/04/2023] [Indexed: 08/09/2023]
Abstract
The development of the clustered regularly interspaced short palindromic repeats/CRISPR-associated protein (CRISPR/Cas) system has provided precise and efficient strategies to edit target genes and generate transgene-free crops. Significant progress has been made in the editing of protein-coding genes; however, studies on the editing of non-coding DNA with regulatory roles lags far behind. Non-coding regulatory DNAs, including those which can be transcribed into long non-coding RNAs (lncRNAs), and miRNAs, together with cis-regulatory elements (CREs), play crucial roles in regulating plant growth and development. Therefore, the combination of CRISPR/Cas technology and non-coding regulatory DNA has great potential to generate novel alleles that affect various agronomic traits of crops, thus providing valuable genetic resources for crop breeding. Herein, we review recent advances in the roles of non-coding regulatory DNA, attempts to edit non-coding regulatory DNA for crop improvement, and potential application of novel editing tools in modulating non-coding regulatory DNA. Finally, the existing problems, possible solutions, and future applications of gene editing of non-coding regulatory DNA in modern crop breeding practice are also discussed.
Collapse
Affiliation(s)
- Yu-Hao Chen
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou 225009, Jiangsu, China
| | - Jun Lu
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou 225009, Jiangsu, China
| | - Xia Yang
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou 225009, Jiangsu, China
| | - Li-Chun Huang
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou 225009, Jiangsu, China
| | - Chang-Quan Zhang
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou 225009, Jiangsu, China
| | - Qiao-Quan Liu
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou 225009, Jiangsu, China
- Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province, Yangzhou University, Yangzhou 225009, Jiangsu, China
| | - Qian-Feng Li
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou 225009, Jiangsu, China
- Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province, Yangzhou University, Yangzhou 225009, Jiangsu, China
| |
Collapse
|
7
|
Shelake RM, Jadhav AM, Bhosale PB, Kim JY. Unlocking secrets of nature's chemists: Potential of CRISPR/Cas-based tools in plant metabolic engineering for customized nutraceutical and medicinal profiles. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 203:108070. [PMID: 37816270 DOI: 10.1016/j.plaphy.2023.108070] [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: 07/18/2023] [Revised: 09/26/2023] [Accepted: 09/28/2023] [Indexed: 10/12/2023]
Abstract
Plant species have evolved diverse metabolic pathways to effectively respond to internal and external signals throughout their life cycle, allowing adaptation to their sessile and phototropic nature. These pathways selectively activate specific metabolic processes, producing plant secondary metabolites (PSMs) governed by genetic and environmental factors. Humans have utilized PSM-enriched plant sources for millennia in medicine and nutraceuticals. Recent technological advances have significantly contributed to discovering metabolic pathways and related genes involved in the biosynthesis of specific PSM in different food crops and medicinal plants. Consequently, there is a growing demand for plant materials rich in nutrients and bioactive compounds, marketed as "superfoods". To meet the industrial demand for superfoods and therapeutic PSMs, modern methods such as system biology, omics, synthetic biology, and genome editing (GE) play a crucial role in identifying the molecular players, limiting steps, and regulatory circuitry involved in PSM production. Among these methods, clustered regularly interspaced short palindromic repeats-CRISPR associated protein (CRISPR/Cas) is the most widely used system for plant GE due to its simple design, flexibility, precision, and multiplexing capabilities. Utilizing the CRISPR-based toolbox for metabolic engineering (ME) offers an ideal solution for developing plants with tailored preventive (nutraceuticals) and curative (therapeutic) metabolic profiles in an ecofriendly way. This review discusses recent advances in understanding the multifactorial regulation of metabolic pathways, the application of CRISPR-based tools for plant ME, and the potential research areas for enhancing plant metabolic profiles.
Collapse
Affiliation(s)
- Rahul Mahadev Shelake
- Division of Applied Life Science (BK21 Four Program), Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, 52828, Republic of Korea.
| | - Amol Maruti Jadhav
- Research Institute of Green Energy Convergence Technology (RIGET), Gyeongsang National University, 501 Jinju-daero, Jinju, 52828, Republic of Korea
| | - Pritam Bhagwan Bhosale
- Department of Veterinary Medicine, Research Institute of Life Science, Gyeongsang National University, 501 Jinju-daero, Jinju, 52828, Republic of Korea
| | - Jae-Yean Kim
- Division of Applied Life Science (BK21 Four Program), Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, 52828, Republic of Korea; Division of Life Science, Gyeongsang National University, 501 Jinju-daero, Jinju, 52828, Republic of Korea; Nulla Bio Inc, 501 Jinju-daero, Jinju, 52828, Republic of Korea.
| |
Collapse
|
8
|
Mipeshwaree Devi A, Khedashwori Devi K, Premi Devi P, Lakshmipriyari Devi M, Das S. Metabolic engineering of plant secondary metabolites: prospects and its technological challenges. FRONTIERS IN PLANT SCIENCE 2023; 14:1171154. [PMID: 37251773 PMCID: PMC10214965 DOI: 10.3389/fpls.2023.1171154] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 04/17/2023] [Indexed: 05/31/2023]
Abstract
Plants produce a wide range of secondary metabolites that play vital roles for their primary functions such as growth, defence, adaptations or reproduction. Some of the plant secondary metabolites are beneficial to mankind as nutraceuticals and pharmaceuticals. Metabolic pathways and their regulatory mechanism are crucial for targeting metabolite engineering. The clustered regularly interspaced short palindromic repeats (CRISPR)/Cas9-mediated system has been widely applied in genome editing with high accuracy, efficiency, and multiplex targeting ability. Besides its vast application in genetic improvement, the technique also facilitates a comprehensive profiling approach to functional genomics related to gene discovery involved in various plant secondary metabolic pathways. Despite these wide applications, several challenges limit CRISPR/Cas system applicability in genome editing in plants. This review highlights updated applications of CRISPR/Cas system-mediated metabolic engineering of plants and its challenges.
Collapse
Affiliation(s)
| | | | | | | | - Sudripta Das
- Plant Bioresources Division, Institute of Bioresources and Sustainable Development, Imphal, Manipur, India
| |
Collapse
|
9
|
Kuroiwa K, Danilo B, Perrot L, Thenault C, Veillet F, Delacote F, Duchateau P, Nogué F, Mazier M, Gallois J. An iterative gene-editing strategy broadens eIF4E1 genetic diversity in Solanum lycopersicum and generates resistance to multiple potyvirus isolates. PLANT BIOTECHNOLOGY JOURNAL 2023; 21:918-930. [PMID: 36715107 PMCID: PMC10106848 DOI: 10.1111/pbi.14003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 12/09/2022] [Accepted: 12/17/2022] [Indexed: 05/04/2023]
Abstract
Resistance to potyviruses in plants has been largely provided by the selection of natural variant alleles of eukaryotic translation initiation factors (eIF) 4E in many crops. However, the sources of such variability for breeding can be limited for certain crop species, while new virus isolates continue to emerge. Different methods of mutagenesis have been applied to inactivate the eIF4E genes to generate virus resistance, but with limited success due to the physiological importance of translation factors and their redundancy. Here, we employed genome editing approaches at the base level to induce non-synonymous mutations in the eIF4E1 gene and create genetic diversity in cherry tomato (Solanum lycopersicum var. cerasiforme). We sequentially edited the genomic sequences coding for two regions of eIF4E1 protein, located around the cap-binding pocket and known to be important for susceptibility to potyviruses. We show that the editing of only one of the two regions, by gene knock-in and base editing, respectively, is not sufficient to provide resistance. However, combining amino acid mutations in both regions resulted in resistance to multiple potyviruses without affecting the functionality in translation initiation. Meanwhile, we report that extensive base editing in exonic region can alter RNA splicing pattern, resulting in gene knockout. Altogether our work demonstrates that precision editing allows to design plant factors based on the knowledge on evolutionarily selected alleles and enlarge the gene pool to potentially provide advantageous phenotypes such as pathogen resistance.
Collapse
Affiliation(s)
| | | | - Laura Perrot
- Toulouse Biotechnology Institute, Université de ToulouseToulouseFrance
| | | | - Florian Veillet
- INRAE, Agrocampus OuestUniversité de Rennes, IGEPPPloudanielFrance
| | | | | | - Fabien Nogué
- Université Paris‐Saclay, INRAE, AgroParisTech, Institut Jean‐Pierre Bourgin (IJPB)VersaillesFrance
| | | | | |
Collapse
|
10
|
Abbas F, Zhou Y, O'Neill Rothenberg D, Alam I, Ke Y, Wang HC. Aroma Components in Horticultural Crops: Chemical Diversity and Usage of Metabolic Engineering for Industrial Applications. PLANTS (BASEL, SWITZERLAND) 2023; 12:plants12091748. [PMID: 37176806 PMCID: PMC10180852 DOI: 10.3390/plants12091748] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 04/21/2023] [Accepted: 04/23/2023] [Indexed: 05/15/2023]
Abstract
Plants produce an incredible variety of volatile organic compounds (VOCs) that assist the interactions with their environment, such as attracting pollinating insects and seed dispersers and defense against herbivores, pathogens, and parasites. Furthermore, VOCs have a significant economic impact on crop quality, as well as the beverage, food, perfume, cosmetics and pharmaceuticals industries. These VOCs are mainly classified as terpenoids, benzenoids/phenylpropanes, and fatty acid derivates. Fruits and vegetables are rich in minerals, vitamins, antioxidants, and dietary fiber, while aroma compounds play a major role in flavor and quality management of these horticultural commodities. Subtle shifts in aroma compounds can dramatically alter the flavor and texture of fruits and vegetables, altering their consumer appeal. Rapid innovations in -omics techniques have led to the isolation of genes encoding enzymes involved in the biosynthesis of several volatiles, which has aided to our comprehension of the regulatory molecular pathways involved in VOC production. The present review focuses on the significance of aroma volatiles to the flavor and aroma profile of horticultural crops and addresses the industrial applications of plant-derived volatile terpenoids, particularly in food and beverages, pharmaceuticals, cosmetics, and biofuel industries. Additionally, the methodological constraints and complexities that limit the transition from gene selection to host organisms and from laboratories to practical implementation are discussed, along with metabolic engineering's potential for enhancing terpenoids volatile production at the industrial level.
Collapse
Affiliation(s)
- Farhat Abbas
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops-South China/Guangdong Litchi Engineering Research Center, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
| | - Yiwei Zhou
- Guangdong Key Laboratory of Ornamental Plant Germplasm Innovation and Utilization, Environmental Horticulture Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510642, China
| | - Dylan O'Neill Rothenberg
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops-South China/Guangdong Litchi Engineering Research Center, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
| | - Intikhab Alam
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops-South China/Guangdong Litchi Engineering Research Center, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
| | - Yanguo Ke
- College of Economics and Management, College of Agriculture and Life Sciences, Yunnan Urban Agricultural Engineering & Technological Research Center, Kunming University, Kunming 650214, China
| | - Hui-Cong Wang
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops-South China/Guangdong Litchi Engineering Research Center, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
| |
Collapse
|
11
|
Shi T, Gao Y, Xu A, Wang R, Lyu M, Sun Y, Chen L, Liu Y, Luo R, Wang H, Liu J. A fast breeding strategy creates fragrance- and anthocyanin-enriched rice lines by marker-free gene-editing and hybridization. MOLECULAR BREEDING : NEW STRATEGIES IN PLANT IMPROVEMENT 2023; 43:23. [PMID: 37313528 PMCID: PMC10248702 DOI: 10.1007/s11032-023-01369-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 03/06/2023] [Indexed: 06/15/2023]
Abstract
As rice is a staple food for nearly half of the world's population, rice varieties with excellent agronomic traits as well as high flavor and nutritional quality such as fragrant rice and purple rice are naturally favored by the market. In the current study, we adopt a fast breeding strategy to improve the aroma and anthocyanin content in the excellent rice inbred line, F25. The strategy skillfully used the advantages of obtaining editing pure lines in T0 generation of CRISPR/Cas9 editing system and easy observation of purple character and grain shape, integrated the subsequent screening of non-transgenic lines, and the elimination of undesirable edited variants from gene-editing and cross-breeding at the same time as the separation of the progeny from the purple cross, thus expediting the breeding process. Compared with conventional breeding strategies, this strategy saves about 6-8 generations and reduces breeding costs. Firstly, we edited the OsBADH2 gene associated with rice flavor using an Agrobacterium-mediated CRISPR/Cas9 system to improve the aroma of F25. In the T0 generation, a homozygous OsBADH2-edited F25 line (F25B) containing more of the scented substance 2-AP was obtained. Then, we crossed F25B (♀) with a purple rice inbred line, P351 (♂), with high anthocyanin enrichment to improve the anthocyanin content of F25. After nearly 2.5 years of screening and identification over five generations, the undesirable variation characteristics caused by gene-editing and hybridization and the transgenic components were screened out. Finally, the improved F25 line with highly stable aroma component, 2-AP, increased anthocyanin content and no exogenous transgenic components were obtained. This study not only provides high-quality aromatic anthocyanin rice lines that meet the market demand, but also offers a reference for the comprehensive use of CRISPR/Cas9 editing technology, hybridization, and marker-assisted selection to accelerate multi-trait improvement and breeding process. Supplementary Information The online version contains supplementary material available at 10.1007/s11032-023-01369-1.
Collapse
Affiliation(s)
- Tiantian Shi
- National Key Facility for Crop Gene Resources and Genetic Improvement (NFCRI), Institute of Crop Sciences, Chinese Academy of Agriculture Sciences (CAAS), Beijing, 100081 China
| | - Ying Gao
- National Key Facility for Crop Gene Resources and Genetic Improvement (NFCRI), Institute of Crop Sciences, Chinese Academy of Agriculture Sciences (CAAS), Beijing, 100081 China
| | - Andi Xu
- National Key Facility for Crop Gene Resources and Genetic Improvement (NFCRI), Institute of Crop Sciences, Chinese Academy of Agriculture Sciences (CAAS), Beijing, 100081 China
| | - Rui Wang
- National Key Facility for Crop Gene Resources and Genetic Improvement (NFCRI), Institute of Crop Sciences, Chinese Academy of Agriculture Sciences (CAAS), Beijing, 100081 China
| | - Mingjie Lyu
- Institute of Germplasm Resources and Biotechnology, Tianjin Academy of Agricultural Sciences, Tianjin, 300112 China
| | - Yinglu Sun
- National Key Facility for Crop Gene Resources and Genetic Improvement (NFCRI), Institute of Crop Sciences, Chinese Academy of Agriculture Sciences (CAAS), Beijing, 100081 China
| | - Luoying Chen
- National Key Facility for Crop Gene Resources and Genetic Improvement (NFCRI), Institute of Crop Sciences, Chinese Academy of Agriculture Sciences (CAAS), Beijing, 100081 China
- Tianjin Agricultural University, Tianjin, 300392 China
| | - Yuanhang Liu
- National Key Facility for Crop Gene Resources and Genetic Improvement (NFCRI), Institute of Crop Sciences, Chinese Academy of Agriculture Sciences (CAAS), Beijing, 100081 China
| | - Rong Luo
- National Key Facility for Crop Gene Resources and Genetic Improvement (NFCRI), Institute of Crop Sciences, Chinese Academy of Agriculture Sciences (CAAS), Beijing, 100081 China
| | - Huan Wang
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Beijing, 100081 China
- Chengdu National Agricultural Science and Technology Center, Chengdu, 610213 Sichuan China
| | - Jun Liu
- National Key Facility for Crop Gene Resources and Genetic Improvement (NFCRI), Institute of Crop Sciences, Chinese Academy of Agriculture Sciences (CAAS), Beijing, 100081 China
| |
Collapse
|
12
|
Zhang C, Yun P, Xia J, Zhou K, Wang L, Zhang J, Zhao B, Yin D, Fu Z, Wang Y, Ma T, Li Z, Wu D. CRISPR/Cas9-mediated editing of Wx and BADH2 genes created glutinous and aromatic two-line hybrid rice. MOLECULAR BREEDING : NEW STRATEGIES IN PLANT IMPROVEMENT 2023; 43:24. [PMID: 37313522 PMCID: PMC10248662 DOI: 10.1007/s11032-023-01368-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 03/02/2023] [Indexed: 06/15/2023]
Abstract
Amylose content (AC) is one of the physicochemical indexes of rice quality, which is largely determined by the Waxy (Wx) gene. Fragrance in rice is favored because it adds good flavor and a faint scent. Loss of function of the BADH2 (FGR) gene promotes the biosynthesis of 2-acetyl-1-pyrroline (2AP), which is the main compound responsible for aroma in rice. Here, we used a CRISPR/Cas9 system to simultaneously knock out Wx and FGR genes in 1892S and M858, which are the parents of an indica two-line hybrid rice, Huiliangyou 858 (HLY858). Four T-DNA-free homozygous mutants (1892Swxfgr-1, 1892Swxfgr-2, M858wxfgr-1, and M858wxfgr-2) were obtained. The 1892Swxfgr and M858wxfgr were crossed to generate double mutant hybrid lines HLY858wxfgr-1 and HLY858wxfgr-2. Size-exclusion chromatography (SEC) data indicated that true AC of the wx mutant starches ranged from 0.22 to 1.63%, much lower than those of the wild types (12.93 to 13.76%). However, the gelatinization temperature (GT) of the wx mutants in backgrounds of 1892S, M858, and HLY858 were still high, and showed no significant differences with the wild type controls. The aroma compounds 2AP content in grains of HLY858wxfgr-1 and HLY858wxfgr-2 were 153.0 μg/kg and 151.0 μg/kg, respectively. In contrast, 2AP was not detected in grains of HLY858. There were no significant differences in major agronomic traits between the mutants and HLY858. This study provides guidelines for cultivation of ideal glutinous and aromatic hybrid rice by gene editing.
Collapse
Affiliation(s)
- Caijuan Zhang
- College of Agronomy, Anhui Agricultural University, Hefei, 230036 China
- Rice Research Institute/Key Laboratory of Rice Genetics and Breeding of Anhui Province, Anhui Academy of Agricultural Sciences, Hefei, 230031 China
| | - Peng Yun
- Rice Research Institute/Key Laboratory of Rice Genetics and Breeding of Anhui Province, Anhui Academy of Agricultural Sciences, Hefei, 230031 China
| | - Jiafa Xia
- Rice Research Institute/Key Laboratory of Rice Genetics and Breeding of Anhui Province, Anhui Academy of Agricultural Sciences, Hefei, 230031 China
| | - Kunneng Zhou
- Rice Research Institute/Key Laboratory of Rice Genetics and Breeding of Anhui Province, Anhui Academy of Agricultural Sciences, Hefei, 230031 China
| | - Lili Wang
- College of Agronomy, Anhui Agricultural University, Hefei, 230036 China
| | - Jingwen Zhang
- College of Agronomy, Anhui Agricultural University, Hefei, 230036 China
| | - Bo Zhao
- College of Agronomy, Anhui Agricultural University, Hefei, 230036 China
| | - Daokun Yin
- College of Agronomy, Anhui Agricultural University, Hefei, 230036 China
| | - Zhe Fu
- College of Agronomy, Anhui Agricultural University, Hefei, 230036 China
| | - Yuanlei Wang
- Rice Research Institute/Key Laboratory of Rice Genetics and Breeding of Anhui Province, Anhui Academy of Agricultural Sciences, Hefei, 230031 China
| | - Tingchen Ma
- Rice Research Institute/Key Laboratory of Rice Genetics and Breeding of Anhui Province, Anhui Academy of Agricultural Sciences, Hefei, 230031 China
| | - Zefu Li
- Rice Research Institute/Key Laboratory of Rice Genetics and Breeding of Anhui Province, Anhui Academy of Agricultural Sciences, Hefei, 230031 China
| | - Dexiang Wu
- College of Agronomy, Anhui Agricultural University, Hefei, 230036 China
| |
Collapse
|
13
|
Imran M, Shafiq S, Ashraf U, Qi J, Mo Z, Tang X. Biosynthesis of 2-Acetyl-1-pyrroline in Fragrant Rice: Recent Insights into Agro-management, Environmental Factors, and Functional Genomics. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:4201-4215. [PMID: 36880506 DOI: 10.1021/acs.jafc.2c07934] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Rice is a staple food for more than half of the world's population, and rice fragrance is a key quality attribute which is highly desired by consumers and attracts premium prices in the international market. There are around 200 volatile compounds involved in rice fragrance, but 2-acetyl-1-pyrroline (2-AP) has been considered a master regulator of aroma in fragrant rice. Consequently, efforts were made to increase the 2-AP contents in the grain by managing agronomical practices or by using modern functional genomic tools, which successfully converted nonfragrant cultivars to fragrant rice. Furthermore, environmental factors were also reported to influence the 2-AP contents. However, a comprehensive analysis of 2-AP biosynthesis in response to agro-management practices, environmental factors, and the application of functional genomic tools for fragrant rice production was missing. In this Review, we summarize how micro/macronutrients, cultivation practices, amino acid precursors, growth regulators, and environmental factors, such as drought, salinity, light, and temperature, influence the 2-AP biosynthesis to modulate the aroma of fragrant rice. Furthermore, we also summarized the successful conversion of nonfragrant rice cultivars to fragrant rice using modern gene editing tools, such as RNAi, TALENS, and CRISPR-Cas9. Finally, we discussed and highlighted the future perspective and challenges related to the aroma of fragrant rice.
Collapse
Affiliation(s)
- Muhammad Imran
- Department of Crop Science and Technology, College of Agriculture, South China Agricultural University, Guangzhou 510642, P. R. China
- Scientific Observing and Experimental Station of Crop Cultivation in South China, Ministry of Agriculture, Guangzhou 510642, P. R. China
- Yingdong College of Biology and Agriculture, Shaoguan University, Shaoguan 512005, P. R. China
| | - Sarfraz Shafiq
- Department of Anatomy and Cell Biology, University of Western Ontario, 1151 Richmond St., London, ON N6A5B8, Canada
| | - Umair Ashraf
- Department of Botany, Division of Science and Technology, University of Education, Lahore 54770, Pakistan
| | - Jianying Qi
- Department of Crop Science and Technology, College of Agriculture, South China Agricultural University, Guangzhou 510642, P. R. China
- Scientific Observing and Experimental Station of Crop Cultivation in South China, Ministry of Agriculture, Guangzhou 510642, P. R. China
| | - Zhaowen Mo
- Department of Crop Science and Technology, College of Agriculture, South China Agricultural University, Guangzhou 510642, P. R. China
- Scientific Observing and Experimental Station of Crop Cultivation in South China, Ministry of Agriculture, Guangzhou 510642, P. R. China
| | - Xiangru Tang
- Department of Crop Science and Technology, College of Agriculture, South China Agricultural University, Guangzhou 510642, P. R. China
- Scientific Observing and Experimental Station of Crop Cultivation in South China, Ministry of Agriculture, Guangzhou 510642, P. R. China
| |
Collapse
|
14
|
Hou X, Guo X, Zhang Y, Zhang Q. CRISPR/Cas genome editing system and its application in potato. Front Genet 2023; 14:1017388. [PMID: 36861125 PMCID: PMC9968925 DOI: 10.3389/fgene.2023.1017388] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 01/23/2023] [Indexed: 02/17/2023] Open
Abstract
Potato is the largest non-cereal food crop worldwide and a vital substitute for cereal crops, considering its high yield and great nutritive value. It plays an important role in food security. The CRISPR/Cas (clustered regularly interspaced short palindromic repeats/CRISPR-associated) system has the advantages of easy operation, high efficiency, and low cost, which shows a potential in potato breeding. In this paper, the action mechanism and derivative types of the CRISPR/Cas system and the application of the CRISPR/Cas system in improving the quality and resistance of potatoes, as well as overcoming the self-incompatibility of potatoes, are reviewed in detail. At the same time, the application of the CRISPR/Cas system in the future development of the potato industry was analyzed and prospected.
Collapse
Affiliation(s)
- Xin Hou
- College of Plant Protection, Shandong Agricultural University, Tai’an, China
| | - Xiaomeng Guo
- College of Plant Protection, Shandong Agricultural University, Tai’an, China
| | - Yan Zhang
- *Correspondence: Yan Zhang, ; Qiang Zhang,
| | | |
Collapse
|
15
|
Imran M, Shafiq S, Tang X. CRISPR-Cas9-mediated editing of BADH2 gene triggered fragrance revolution in rice. PHYSIOLOGIA PLANTARUM 2023; 175:e13871. [PMID: 36748269 DOI: 10.1111/ppl.13871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 12/26/2022] [Accepted: 02/01/2023] [Indexed: 06/18/2023]
Abstract
Fragrance is one of the most important quality traits for breeding in rice. The natural aroma substance 2-acetyl-1-pyrroline (2-AP) is a key fragrance compound among over 200 volatiles identified in fragrant rice. In addition to rice, there are other plant species that contain a germplasm that naturally produces a fragrant aroma. These other plant species all have lower activity levels of the enzyme BETAINE ALDEHYDE DEHYDROGENASE 2 (BADH2). Therefore, improving fragrance efficiency has been a focus of intensive research. Recent studies have engineered BADH2 gene, which is responsible for fragrance trait in non-fragrant cultivars of rice, using CRISPR-Cas9. Although engineering rice BADH2 can be useful for upregulating 2-AP, there are still a lot of restrictions on how it can be applied in practice. In this review article, we discuss the recent developments in BADH2 editing and propose potential future strategies to effectively target BADH2 for transcriptional regulation, with the goal of producing a better fragrance.
Collapse
Affiliation(s)
- Muhammad Imran
- Department of Crop Science and Technology, College of Agriculture, South China Agricultural University, Guangzhou, China
- Scientific Observing and Experimental Station of Crop Cultivation in South China, Ministry of Agriculture, Guangzhou, China
- Yingdong College of Biology and Agriculture, Shaoguan University, Shaoguan, China
| | - Sarfraz Shafiq
- Department of Anatomy and Cell Biology, University of Western Ontario, London, Ontario, Canada
| | - Xiangru Tang
- Department of Crop Science and Technology, College of Agriculture, South China Agricultural University, Guangzhou, China
- Scientific Observing and Experimental Station of Crop Cultivation in South China, Ministry of Agriculture, Guangzhou, China
| |
Collapse
|
16
|
CRISPR/Cas Genome Editing Technologies for Plant Improvement against Biotic and Abiotic Stresses: Advances, Limitations, and Future Perspectives. Cells 2022; 11:cells11233928. [PMID: 36497186 PMCID: PMC9736268 DOI: 10.3390/cells11233928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [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.
Collapse
|
17
|
Combined Metabolomic and Quantitative RT-PCR Analyses Revealed the Synthetic Differences of 2-Acetyl-1-pyrroline in Aromatic and Non-Aromatic Vegetable Soybeans. Int J Mol Sci 2022; 23:ijms232314529. [PMID: 36498856 PMCID: PMC9738111 DOI: 10.3390/ijms232314529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 10/31/2022] [Accepted: 11/02/2022] [Indexed: 11/23/2022] Open
Abstract
Aroma is an important economic trait of vegetable soybeans, which greatly influences their market value. The 2-acetyl-1-pyrroline (2AP) is considered as an important substance affecting the aroma of plants. Although the 2AP synthesis pathway has been resolved, the differences of the 2AP synthesis in the aromatic and non-aromatic vegetable soybeans are unknown. In this study, a broad targeted metabolome analysis including measurement of metabolites levels and gene expression levels was performed to reveal pathways of aroma formation in the two developmental stages of vegetable soybean grains [35 (S5) and 40 (S6) days after anthesis] of the 'Zhexian No. 8' (ZX8, non-aromatic) and ZK1754 (aromatic). The results showed that the differentially accumulated metabolites (DAMs) of the two varieties can be classified into nine main categories including flavonoids, lipids, amino acids and derivatives, saccharides and alcohols, organic acids, nucleotides and derivatives, phenolic acids, alkaloids and vitamin, which mainly contributed to their phenotypic differences. Furthermore, in combination with the 2AP synthesis pathway, the differences of amino acids and derivatives were mainly involved in the 2AP synthesis. Furthermore, 2AP precursors' analysis revealed that the accumulation of 2AP mainly occurred from 1-pyrroline-5-carboxylate (P5C), not 4-aminobutyraldehyde (GABald). The quantitative RT-PCR showed that the associated synthetic genes were 1-pyrroline-5-carboxylate dehydrogenase (P5CDH), ∆1-pyrroline-5-carboxylate synthetase (P5CS), proline dehydrogenase (PRODH) and pyrroline-5-carboxylate reductase (P5CR), which further verified the synthetic pathway of 2AP. Furthermore, the betaine aldehyde dehydrogenase 2 (GmBADH2) mutant was not only vital for the occurrence of 2AP, but also for the synthesis of 4-aminobutyric acid (GABA) in vegetable soybean. Therefore, the differences of 2AP accumulation in aromatic and non-aromatic vegetable soybeans have been revealed, and it also provides an important theoretical basis for aromatic vegetable soybean breeding.
Collapse
|
18
|
Li Y, Wu X, Zhang Y, Zhang Q. CRISPR/Cas genome editing improves abiotic and biotic stress tolerance of crops. Front Genome Ed 2022; 4:987817. [PMID: 36188128 PMCID: PMC9524261 DOI: 10.3389/fgeed.2022.987817] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 08/16/2022] [Indexed: 11/29/2022] Open
Abstract
Abiotic stress such as cold, drought, saline-alkali stress and biotic stress including disease and insect pest are the main factors that affect plant growth and limit agricultural productivity. In recent years, with the rapid development of molecular biology, genome editing techniques have been widely used in botany and agronomy due to their characteristics of high efficiency, controllable and directional editing. Genome editing techniques have great application potential in breeding resistant varieties. These techniques have achieved remarkable results in resistance breeding of important cereal crops (such as maize, rice, wheat, etc.), vegetable and fruit crops. Among them, CRISPR/Cas (clustered regularly interspaced short palindromic repeats/CRISPR-associated) provides a guarantee for the stability of crop yield worldwide. In this paper, the development of CRISRR/Cas and its application in different resistance breeding of important crops are reviewed, the advantages and importance of CRISRR/Cas technology in breeding are emphasized, and the possible problems are pointed out.
Collapse
Affiliation(s)
- Yangyang Li
- Hunan Tobacco Research Institute, Changsha, China
| | - Xiuzhe Wu
- College of Plant Protection, Shandong Agricultural University, Tai’an, China
| | - Yan Zhang
- College of Plant Protection, Shandong Agricultural University, Tai’an, China
- *Correspondence: Qiang Zhang, ; Yan Zhang,
| | - Qiang Zhang
- College of Plant Protection, Shandong Agricultural University, Tai’an, China
- *Correspondence: Qiang Zhang, ; Yan Zhang,
| |
Collapse
|
19
|
Sreenivasulu N, Zhang C, Tiozon RN, Liu Q. Post-genomics revolution in the design of premium quality rice in a high-yielding background to meet consumer demands in the 21st century. PLANT COMMUNICATIONS 2022; 3:100271. [PMID: 35576153 PMCID: PMC9251384 DOI: 10.1016/j.xplc.2021.100271] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 12/23/2021] [Accepted: 12/24/2021] [Indexed: 05/14/2023]
Abstract
The eating and cooking quality (ECQ) of rice is critical for determining its economic value in the marketplace and promoting consumer acceptance. It has therefore been of paramount importance in rice breeding programs. Here, we highlight advances in genetic studies of ECQ and discuss prospects for further enhancement of ECQ in rice. Innovations in gene- and genome-editing techniques have enabled improvements in rice ECQ. Significant genes and quantitative trait loci (QTLs) have been shown to regulate starch composition, thereby affecting amylose content and thermal and pasting properties. A limited number of genes/QTLs have been identified for other ECQ properties such as protein content and aroma. Marker-assisted breeding has identified rare alleles in diverse genetic resources that are associated with superior ECQ properties. The post-genomics-driven information summarized in this review is relevant for augmenting current breeding strategies to meet consumer preferences and growing population demands.
Collapse
Affiliation(s)
- Nese Sreenivasulu
- Consumer Driven Grain Quality and Nutrition Unit, Rice Breeding and Innovation Platform, International Rice Research Institute, Los Baños 4030, Philippines.
| | - Changquan Zhang
- Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, College of Agriculture, Yangzhou University, Yangzhou 225009, China; Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Jiangsu Key Laboratory of Crop Genetics and Physiology, Yangzhou University, Yangzhou 225009, China
| | - Rhowell N Tiozon
- Consumer Driven Grain Quality and Nutrition Unit, Rice Breeding and Innovation Platform, International Rice Research Institute, Los Baños 4030, Philippines; Max Planck Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476 Potsdam-Golm, Germany
| | - Qiaoquan Liu
- Key Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, College of Agriculture, Yangzhou University, Yangzhou 225009, China; Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Jiangsu Key Laboratory of Crop Genetics and Physiology, Yangzhou University, Yangzhou 225009, China.
| |
Collapse
|
20
|
Zhang D, Tang S, Xie P, Yang D, Wu Y, Cheng S, Du K, Xin P, Chu J, Yu F, Xie Q. Creation of fragrant sorghum by CRISPR/Cas9. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2022; 64:961-964. [PMID: 35142064 DOI: 10.1111/jipb.13232] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 02/02/2022] [Indexed: 06/14/2023]
Abstract
Sorghum, the fifth largest cereal crop, has high value as a staple food and raw material for liquor and vinegar brewing. Due to its high biomass and quality, it is also used as the second most planted silage resource. No fragrant sorghums are currently on the market. Through CRISPR/Cas9-mediated knockout of SbBADH2, we obtained sorghum lines with extraordinary aromatic smell in both seeds and leaves. Animal feeding experiments showed that fragrant sorghum leaves were attractable. We believe this advantage will produce great value in the sorghum market for both grain and whole biomass forage.
Collapse
Affiliation(s)
- Dan Zhang
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Sanyuan Tang
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
| | - Peng Xie
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
| | - Dekai Yang
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yaorong Wu
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
| | - Shujing Cheng
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
| | - Kai Du
- Animal Facility Institute of Genetics and Developmental Biology, The Chinese Academy of Sciences, Beijing, 100101, China
| | - Peiyong Xin
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
| | - Jinfang Chu
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
| | - Feifei Yu
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
- College of Grassland Science and Technology, China Agricultural University, Beijing, 100083, China
| | - Qi Xie
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| |
Collapse
|
21
|
Qian L, Jin H, Yang Q, Zhu L, Yu X, Fu X, Zhao M, Yuan F. A Sequence Variation in GmBADH2 Enhances Soybean Aroma and Is a Functional Marker for Improving Soybean Flavor. Int J Mol Sci 2022; 23:4116. [PMID: 35456933 PMCID: PMC9030070 DOI: 10.3390/ijms23084116] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 03/25/2022] [Accepted: 04/03/2022] [Indexed: 12/10/2022] Open
Abstract
The vegetable soybean (Glycine max L. Merr.) plant is commonly consumed in Southeast Asian countries because of its nutritional value and desirable taste. A "pandan-like" aroma is an important value-added quality trait that is rarely found in commercial vegetable soybean varieties. In this study, three novel aromatic soybean cultivars with a fragrant volatile compound were isolated. We confirmed that the aroma of these cultivars is due to the potent volatile compound 2-acetyl-1-pyrroline (2AP) that was previously identified in soybean. A sequence comparison of GmBADH1/2 (encoding an aminoaldehyde dehydrogenase) between aromatic and non-aromatic soybean varieties revealed a mutation with 10 SNPs and an 11-nucleotide deletion in exon 1 of GmBADH2 in Quxian No. 1 and Xiangdou. Additionally, a 2-bp deletion was detected in exon 10 of GmBADH2 in ZK1754. The mutations resulted in a frame shift and the introduction of premature stop codons. Moreover, genetic analyses indicated that the aromatic trait in these three varieties was inherited according to a single recessive gene model. These results suggested that a mutated GmBADH2 may be responsible for the aroma of these three aromatic soybean cultivars. The expression and function of GmBADH2 in aromatic soybean seeds were confirmed by qRT-PCR and CRISPR/Cas9. A functional marker developed on the basis of the mutated GmBADH2 sequence in Quxian No. 1 and Xiangdou was validated in an F2 population. A perfect association between the marker genotypes and aroma phenotypes implied that GmBADH2 is a major aroma-conferring gene. The results of this study are potentially useful for an in-depth analysis of the molecular basis of 2-AP formation in soybean and the marker-assisted breeding of aromatic vegetable soybean cultivars.
Collapse
Affiliation(s)
- Linlin Qian
- Hangzhou Sub-Center of National Soybean Improvement, Institute of Crop and Nuclear Technology Utilization, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; (L.Q.); (H.J.); (Q.Y.); (L.Z.); (X.Y.); (X.F.)
- Key Laboratory of Information Traceability for Agricultural Products, Ministry of Agriculture and Rural Affairs of China, Hangzhou 310021, China
- The National and Local Joint Engineering Research Center for Bio-Manufacturing of Chiral Chemicals, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, China;
| | - Hangxia Jin
- Hangzhou Sub-Center of National Soybean Improvement, Institute of Crop and Nuclear Technology Utilization, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; (L.Q.); (H.J.); (Q.Y.); (L.Z.); (X.Y.); (X.F.)
- Zhejiang Key Laboratory of Digital Dry Land Crops, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Qinghua Yang
- Hangzhou Sub-Center of National Soybean Improvement, Institute of Crop and Nuclear Technology Utilization, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; (L.Q.); (H.J.); (Q.Y.); (L.Z.); (X.Y.); (X.F.)
- Key Laboratory of Information Traceability for Agricultural Products, Ministry of Agriculture and Rural Affairs of China, Hangzhou 310021, China
- Zhejiang Key Laboratory of Digital Dry Land Crops, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Longming Zhu
- Hangzhou Sub-Center of National Soybean Improvement, Institute of Crop and Nuclear Technology Utilization, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; (L.Q.); (H.J.); (Q.Y.); (L.Z.); (X.Y.); (X.F.)
- Zhejiang Key Laboratory of Digital Dry Land Crops, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Xiaomin Yu
- Hangzhou Sub-Center of National Soybean Improvement, Institute of Crop and Nuclear Technology Utilization, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; (L.Q.); (H.J.); (Q.Y.); (L.Z.); (X.Y.); (X.F.)
- Zhejiang Key Laboratory of Digital Dry Land Crops, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Xujun Fu
- Hangzhou Sub-Center of National Soybean Improvement, Institute of Crop and Nuclear Technology Utilization, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; (L.Q.); (H.J.); (Q.Y.); (L.Z.); (X.Y.); (X.F.)
- Zhejiang Key Laboratory of Digital Dry Land Crops, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Man Zhao
- The National and Local Joint Engineering Research Center for Bio-Manufacturing of Chiral Chemicals, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, China;
| | - Fengjie Yuan
- Hangzhou Sub-Center of National Soybean Improvement, Institute of Crop and Nuclear Technology Utilization, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; (L.Q.); (H.J.); (Q.Y.); (L.Z.); (X.Y.); (X.F.)
- Zhejiang Key Laboratory of Digital Dry Land Crops, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| |
Collapse
|
22
|
Sukegawa S, Toki S, Saika H. Genome Editing Technology and Its Application to Metabolic Engineering in Rice. RICE (NEW YORK, N.Y.) 2022; 15:21. [PMID: 35366102 PMCID: PMC8976860 DOI: 10.1186/s12284-022-00566-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 03/18/2022] [Indexed: 05/18/2023]
Abstract
Genome editing technology can be used for gene engineering in many organisms. A target metabolite can be fortified by the knockout and modification of target genes encoding enzymes involved in catabolic and biosynthesis pathways, respectively, via genome editing technology. Genome editing is also applied to genes encoding proteins other than enzymes, such as chaperones and transporters. There are many reports of such metabolic engineering using genome editing technology in rice. Genome editing is used not only for site-directed mutagenesis such as the substitution of a single base in a target gene but also for random mutagenesis at a targeted region. The latter enables the creation of novel genetic alleles in a target gene. Recently, genome editing technology has been applied to random mutagenesis in a targeted gene and its promoter region in rice, enabling the screening of plants with a desirable trait from these mutants. Moreover, the expression level of a target gene can be artificially regulated by a combination of genome editing tools such as catalytically inactivated Cas protein with transcription activator or repressor. This approach could be useful for metabolic engineering, although expression cassettes for inactivated Cas fused to a transcriptional activator or repressor should be stably transformed into the rice genome. Thus, the rapid development of genome editing technology has been expanding the scope of molecular breeding including metabolic engineering. In this paper, we review the current status of genome editing technology and its application to metabolic engineering in rice.
Collapse
Affiliation(s)
- Satoru Sukegawa
- Institute of Agrobiological Sciences, National Agriculture and Food Research Organization, 3-1-3 Kannondai, Tsukuba, Ibaraki 305-8604 Japan
| | - Seiichi Toki
- Institute of Agrobiological Sciences, National Agriculture and Food Research Organization, 3-1-3 Kannondai, Tsukuba, Ibaraki 305-8604 Japan
- Graduate School of Nanobioscience, Yokohama City University, Yokohama, Kanagawa Japan
- Kihara Institute for Biological Research, Yokohama City University, Yokohama, Kanagawa Japan
- Department of Plant Life Science, Faculty of Agriculture, Ryukoku University, Otsu, Shiga Japan
| | - Hiroaki Saika
- Institute of Agrobiological Sciences, National Agriculture and Food Research Organization, 3-1-3 Kannondai, Tsukuba, Ibaraki 305-8604 Japan
| |
Collapse
|
23
|
Lai Z, Huang Z, Sun J, Jing X, Xiang L, Zhao H, Mo C, Hou X. CRISPR/Cas基因组编辑技术及其在农作物品种改良中的应用. CHINESE SCIENCE BULLETIN-CHINESE 2022. [DOI: 10.1360/tb-2022-0197] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
24
|
Yang Y, Xu C, Shen Z, Yan C. Crop Quality Improvement Through Genome Editing Strategy. Front Genome Ed 2022; 3:819687. [PMID: 35174353 PMCID: PMC8841430 DOI: 10.3389/fgeed.2021.819687] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 12/30/2021] [Indexed: 11/13/2022] Open
Abstract
Good quality of crops has always been the most concerning aspect for breeders and consumers. However, crop quality is a complex trait affected by both the genetic systems and environmental factors, thus, it is difficult to improve through traditional breeding strategies. Recently, the CRISPR/Cas9 genome editing system, enabling efficiently targeted modification, has revolutionized the field of quality improvement in most crops. In this review, we briefly review the various genome editing ability of the CRISPR/Cas9 system, such as gene knockout, knock-in or replacement, base editing, prime editing, and gene expression regulation. In addition, we highlight the advances in crop quality improvement applying the CRISPR/Cas9 system in four main aspects: macronutrients, micronutrients, anti-nutritional factors and others. Finally, the potential challenges and future perspectives of genome editing in crop quality improvement is also discussed.
Collapse
Affiliation(s)
- Yihao Yang
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Yangzhou, China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou, China
- Department of Crop Genetics and Breeding, Agricultural College of Yangzhou University, Yangzhou, China
| | - Chenda Xu
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Yangzhou, China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou, China
| | - Ziyan Shen
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Yangzhou, China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou, China
| | - Changjie Yan
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Yangzhou, China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou, China
- Department of Crop Genetics and Breeding, Agricultural College of Yangzhou University, Yangzhou, China
- *Correspondence: Changjie Yan,
| |
Collapse
|
25
|
Hui S, Li H, Mawia AM, Zhou L, Cai J, Ahmad S, Lai C, Wang J, Jiao G, Xie L, Shao G, Sheng Z, Tang S, Wang J, Wei X, Hu S, Hu P. Production of aromatic three-line hybrid rice using novel alleles of BADH2. PLANT BIOTECHNOLOGY JOURNAL 2022; 20:59-74. [PMID: 34465003 PMCID: PMC8710899 DOI: 10.1111/pbi.13695] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 07/20/2021] [Accepted: 08/19/2021] [Indexed: 05/15/2023]
Abstract
Aroma is a key grain quality trait that directly influences the market price of rice globally. Loss of function of betaine aldehyde dehydrogenase 2 (OsBADH2) affects the biosynthesis of 2-acetyl-1-pyrroline (2-AP), which is responsible for aroma in fragrant rice. The current study was aimed at creating new alleles of BADH2 using CRISPR/Cas9 gene editing technology under the genetic background of the japonica Ningjing 1 (NJ1) and indica Huang Huazhan (HHZ) varieties. Sensory evaluation and analysis using headspace solid-phase microextraction gas chromatography-mass spectrometry (HS-SPME-GC-MS) showed that the grains of the four homozygous T1 lines with new alleles of BADH2 (nj1-cr BADH2 -1, nj1-cr BADH2 -2, hhz-cr BADH2 -1 and hhz-cr BADH2 -2) produced moderate fragrance and had significantly increased 2-AP content compared with wild-types. Moreover, there were no significant differences in the amylose content and gelatinization temperature among the four lines with new alleles of BADH2 to the wild-types. Thereafter, we crossed the HHZ background new alleles of BADH2 with CMS line Taonong 1A (TN1A) to produce a three-line hybrid variety B-Tao-You-Xiangzhan (BTYXZ) with increased grain aroma. The 2-AP content in grains of the improved BTYXZ-1 and BTYXZ-2 reached at 26.16 and 18.74 μg/kg, and the gel consistency of BTYXZ-1 and BTYXZ-2 increased significantly by 9.1% and 6.5%, respectively, compared with the wild-type Tao-You-Xiangzhan (TYXZ). However, the γ-aminobutyric acid (GABA) content in the improved three-line hybrid rice BTYXZ-1 (5.6 mg/100 g) and BTYXZ-2 (10.7 mg/100 g) was significantly lower than that of the TYXZ. These results demonstrated that CRISPR/Cas9 gene editing technology could be successfully utilized in improving aroma in non-fragrant japonica and indica varieties. In addition, the newly developed BADH2 alleles provided important genetic resources for grain aroma improvement in three-line hybrid rice.
Collapse
Affiliation(s)
- Suozhen Hui
- State Key Laboratory of Rice BiologyChina National Center for Rice ImprovementChina National Rice Research InstituteHangzhouChina
| | - Huijuan Li
- State Key Laboratory of Rice BiologyChina National Center for Rice ImprovementChina National Rice Research InstituteHangzhouChina
| | - Amos Musyoki Mawia
- State Key Laboratory of Rice BiologyChina National Center for Rice ImprovementChina National Rice Research InstituteHangzhouChina
| | - Liang Zhou
- State Key Laboratory of Rice BiologyChina National Center for Rice ImprovementChina National Rice Research InstituteHangzhouChina
| | - Jinyang Cai
- Jiaxing Academy of Agricultural SciencesJiaxingChina
| | - Shakeel Ahmad
- State Key Laboratory of Rice BiologyChina National Center for Rice ImprovementChina National Rice Research InstituteHangzhouChina
| | - Changkai Lai
- State Key Laboratory of Rice BiologyChina National Center for Rice ImprovementChina National Rice Research InstituteHangzhouChina
| | - Jingxin Wang
- State Key Laboratory of Rice BiologyChina National Center for Rice ImprovementChina National Rice Research InstituteHangzhouChina
| | - Guiai Jiao
- State Key Laboratory of Rice BiologyChina National Center for Rice ImprovementChina National Rice Research InstituteHangzhouChina
| | - Lihong Xie
- State Key Laboratory of Rice BiologyChina National Center for Rice ImprovementChina National Rice Research InstituteHangzhouChina
| | - Gaoneng Shao
- State Key Laboratory of Rice BiologyChina National Center for Rice ImprovementChina National Rice Research InstituteHangzhouChina
| | - Zhonghua Sheng
- State Key Laboratory of Rice BiologyChina National Center for Rice ImprovementChina National Rice Research InstituteHangzhouChina
| | - Shaoqing Tang
- State Key Laboratory of Rice BiologyChina National Center for Rice ImprovementChina National Rice Research InstituteHangzhouChina
| | | | - Xiangjin Wei
- State Key Laboratory of Rice BiologyChina National Center for Rice ImprovementChina National Rice Research InstituteHangzhouChina
| | - Shikai Hu
- State Key Laboratory of Rice BiologyChina National Center for Rice ImprovementChina National Rice Research InstituteHangzhouChina
| | - Peisong Hu
- State Key Laboratory of Rice BiologyChina National Center for Rice ImprovementChina National Rice Research InstituteHangzhouChina
| |
Collapse
|