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Zhao Y, Cheng P, Liu Y, Liu C, Hu Z, Xin D, Wu X, Yang M, Chen Q. A highly efficient soybean transformation system using GRF3-GIF1 chimeric protein. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2024. [PMID: 39240004 DOI: 10.1111/jipb.13767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Accepted: 07/31/2024] [Indexed: 09/07/2024]
Abstract
Expression of GRF3-GIF1 chimera significantly enhanced regeneration and transformation efficiency in soybean, increasing the number of transformable cultivars. Moreover, GmGRF3-GIF1 can be combined with CRISPR/Cas9 for highly effective gene editing.
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Affiliation(s)
- Ying Zhao
- National Key Laboratory of Smart Farm Technologies and Systems, College of Agriculture, Northeast Agricultural University, Harbin, China
| | - Peng Cheng
- National Key Laboratory of Smart Farm Technologies and Systems, College of Agriculture, Northeast Agricultural University, Harbin, China
| | - Ying Liu
- National Key Laboratory of Smart Farm Technologies and Systems, College of Agriculture, Northeast Agricultural University, Harbin, China
| | - Chunyan Liu
- National Key Laboratory of Smart Farm Technologies and Systems, College of Agriculture, Northeast Agricultural University, Harbin, China
| | - Zhenbang Hu
- National Key Laboratory of Smart Farm Technologies and Systems, College of Agriculture, Northeast Agricultural University, Harbin, China
| | - Dawei Xin
- National Key Laboratory of Smart Farm Technologies and Systems, College of Agriculture, Northeast Agricultural University, Harbin, China
| | - Xiaoxia Wu
- National Key Laboratory of Smart Farm Technologies and Systems, College of Agriculture, Northeast Agricultural University, Harbin, China
| | - Mingliang Yang
- National Key Laboratory of Smart Farm Technologies and Systems, College of Agriculture, Northeast Agricultural University, Harbin, China
| | - Qingshan Chen
- National Key Laboratory of Smart Farm Technologies and Systems, College of Agriculture, Northeast Agricultural University, Harbin, China
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2
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Yang W, Zhai H, Wu F, Deng L, Chao Y, Meng X, Chen Q, Liu C, Bie X, Sun C, Yu Y, Zhang X, Zhang X, Chang Z, Xue M, Zhao Y, Meng X, Li B, Zhang X, Zhang D, Zhao X, Gao C, Li J, Li C. Peptide REF1 is a local wound signal promoting plant regeneration. Cell 2024; 187:3024-3038.e14. [PMID: 38781969 DOI: 10.1016/j.cell.2024.04.040] [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: 01/09/2024] [Revised: 03/10/2024] [Accepted: 04/26/2024] [Indexed: 05/25/2024]
Abstract
Plants frequently encounter wounding and have evolved an extraordinary regenerative capacity to heal the wounds. However, the wound signal that triggers regenerative responses has not been identified. Here, through characterization of a tomato mutant defective in both wound-induced defense and regeneration, we demonstrate that in tomato, a plant elicitor peptide (Pep), REGENERATION FACTOR1 (REF1), acts as a systemin-independent local wound signal that primarily regulates local defense responses and regenerative responses in response to wounding. We further identified PEPR1/2 ORTHOLOG RECEPTOR-LIKE KINASE1 (PORK1) as the receptor perceiving REF1 signal for plant regeneration. REF1-PORK1-mediated signaling promotes regeneration via activating WOUND-INDUCED DEDIFFERENTIATION 1 (WIND1), a master regulator of wound-induced cellular reprogramming in plants. Thus, REF1-PORK1 signaling represents a conserved phytocytokine pathway to initiate, amplify, and stabilize a signaling cascade that orchestrates wound-triggered organ regeneration. Application of REF1 provides a simple method to boost the regeneration and transformation efficiency of recalcitrant crops.
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Affiliation(s)
- Wentao Yang
- Key Laboratory of Seed Innovation, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China; Taishan Academy of Tomato Innovation, Shandong Agricultural University, Tai'an 271018, Shandong, China; College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing 100049, China; College of Life Sciences, Shandong Agricultural University, Tai'an 271018, Shandong, China
| | - Huawei Zhai
- Taishan Academy of Tomato Innovation, Shandong Agricultural University, Tai'an 271018, Shandong, China; College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an 271018, Shandong, China
| | - Fangming Wu
- Key Laboratory of Seed Innovation, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China; Taishan Academy of Tomato Innovation, Shandong Agricultural University, Tai'an 271018, Shandong, China; College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lei Deng
- Taishan Academy of Tomato Innovation, Shandong Agricultural University, Tai'an 271018, Shandong, China; College of Life Sciences, Shandong Agricultural University, Tai'an 271018, Shandong, China.
| | - Yu Chao
- Key Laboratory of Seed Innovation, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China; Taishan Academy of Tomato Innovation, Shandong Agricultural University, Tai'an 271018, Shandong, China; College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xianwen Meng
- Taishan Academy of Tomato Innovation, Shandong Agricultural University, Tai'an 271018, Shandong, China; College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an 271018, Shandong, China
| | - Qian Chen
- Taishan Academy of Tomato Innovation, Shandong Agricultural University, Tai'an 271018, Shandong, China; College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an 271018, Shandong, China
| | - Chenhuan Liu
- Key Laboratory of Seed Innovation, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China; College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaomin Bie
- College of Life Sciences, Shandong Agricultural University, Tai'an 271018, Shandong, China
| | - Chuanlong Sun
- Taishan Academy of Tomato Innovation, Shandong Agricultural University, Tai'an 271018, Shandong, China; College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an 271018, Shandong, China
| | - Yang Yu
- Taishan Academy of Tomato Innovation, Shandong Agricultural University, Tai'an 271018, Shandong, China; College of Life Sciences, Shandong Agricultural University, Tai'an 271018, Shandong, China
| | - Xiaofei Zhang
- Key Laboratory of Seed Innovation, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China; College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaoyue Zhang
- Key Laboratory of Seed Innovation, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China; Taishan Academy of Tomato Innovation, Shandong Agricultural University, Tai'an 271018, Shandong, China; College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zeqian Chang
- Key Laboratory of Seed Innovation, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China; Taishan Academy of Tomato Innovation, Shandong Agricultural University, Tai'an 271018, Shandong, China; College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Min Xue
- College of Agronomy, Shandong Agricultural University, Tai'an 271018, Shandong, China
| | - Yajie Zhao
- College of Life Sciences, Shandong Agricultural University, Tai'an 271018, Shandong, China
| | - Xiangbing Meng
- Key Laboratory of Seed Innovation, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Boshu Li
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing 100049, China; New Cornerstone Science Laboratory, Center for Genome Editing, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Xiansheng Zhang
- College of Life Sciences, Shandong Agricultural University, Tai'an 271018, Shandong, China
| | - Dajian Zhang
- College of Agronomy, Shandong Agricultural University, Tai'an 271018, Shandong, China
| | - Xiangyu Zhao
- College of Life Sciences, Shandong Agricultural University, Tai'an 271018, Shandong, China
| | - Caixia Gao
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing 100049, China; New Cornerstone Science Laboratory, Center for Genome Editing, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Jiayang Li
- Key Laboratory of Seed Innovation, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Chuanyou Li
- Key Laboratory of Seed Innovation, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China; Taishan Academy of Tomato Innovation, Shandong Agricultural University, Tai'an 271018, Shandong, China; College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing 100049, China; College of Life Sciences, Shandong Agricultural University, Tai'an 271018, Shandong, China; College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an 271018, Shandong, China.
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3
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Yu Y, Yu H, Peng J, Yao WJ, Wang YP, Zhang FL, Wang SR, Zhao Y, Zhao XY, Zhang XS, Su YH. Enhancing wheat regeneration and genetic transformation through overexpression of TaLAX1. PLANT COMMUNICATIONS 2024; 5:100738. [PMID: 37897039 PMCID: PMC11121199 DOI: 10.1016/j.xplc.2023.100738] [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: 07/16/2023] [Revised: 10/12/2023] [Accepted: 10/21/2023] [Indexed: 10/29/2023]
Abstract
In the realm of genetically transformed crops, the process of plant regeneration holds utmost significance. However, the low regeneration efficiency of several wheat varieties currently restricts the use of genetic transformation for gene functional analysis and improved crop production. This research explores overexpression of TaLAX PANICLE1 (TaLAX1), which markedly enhances regeneration efficiency, thereby boosting genetic transformation and genome editing in wheat. Particularly noteworthy is the substantial increase in regeneration efficiency of common wheat varieties previously regarded as recalcitrant to genetic transformation. Our study shows that increased expression of TaGROWTH-REGULATING FACTOR (TaGRF) genes, alongside that of their co-factor, TaGRF-INTERACTING FACTOR 1 (TaGIF1), enhances cytokinin accumulation and auxin response, which may play pivotal roles in the improved regeneration and transformation of TaLAX1-overexpressing wheat plants. Overexpression of TaLAX1 homologs also significantly increases the regeneration efficiency of maize and soybean, suggesting that both monocot and dicot crops can benefit from this enhancement. Our findings shed light on a gene that enhances wheat genetic transformation and elucidate molecular mechanisms that potentially underlie wheat regeneration.
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Affiliation(s)
- Yang Yu
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Haixia Yu
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Jing Peng
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Wang Jinsong Yao
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Yi Peng Wang
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Feng Li Zhang
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Shi Rong Wang
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Yajie Zhao
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Xiang Yu Zhao
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Xian Sheng Zhang
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, Shandong 271018, China.
| | - Ying Hua Su
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, Shandong 271018, China.
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4
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Nivya VM, Shah JM. Recalcitrance to transformation, a hindrance for genome editing of legumes. Front Genome Ed 2023; 5:1247815. [PMID: 37810593 PMCID: PMC10551638 DOI: 10.3389/fgeed.2023.1247815] [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: 06/26/2023] [Accepted: 09/06/2023] [Indexed: 10/10/2023] Open
Abstract
Plant genome editing, a recently discovered method for targeted mutagenesis, has emerged as a promising tool for crop improvement and gene function research. Many genome-edited plants, such as rice, wheat, and tomato, have emerged over the last decade. As the preliminary steps in the procedure for genome editing involve genetic transformation, amenability to genome editing depends on the efficiency of genetic engineering. Hence, there are numerous reports on the aforementioned crops because they are transformed with relative ease. Legume crops are rich in protein and, thus, are a favored source of plant proteins for the human diet in most countries. However, legume cultivation often succumbs to various biotic/abiotic threats, thereby leading to high yield loss. Furthermore, certain legumes like peanuts possess allergens, and these need to be eliminated as these deprive many people from gaining the benefits of such crops. Further genetic variations are limited in certain legumes. Genome editing has the potential to offer solutions to not only combat biotic/abiotic stress but also generate desirable knock-outs and genetic variants. However, excluding soybean, alfalfa, and Lotus japonicus, reports obtained on genome editing of other legume crops are less. This is because, excluding the aforementioned three legume crops, the transformation efficiency of most legumes is found to be very low. Obtaining a higher number of genome-edited events is desirable as it offers the option to genotypically/phenotypically select the best candidate, without the baggage of off-target mutations. Eliminating the barriers to genetic engineering would directly help in increasing genome-editing rates. Thus, this review aims to compare various legumes for their transformation, editing, and regeneration efficiencies and discusses various solutions available for increasing transformation and genome-editing rates in legumes.
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Affiliation(s)
| | - Jasmine M. Shah
- Department of Plant Science, Central University of Kerala, Kasaragod, Kerala, India
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5
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Waqar Khan M, Yang W, Yu K, Zhang X. Aztreonam is a novel chemical inducer that promotes Agrobacteium transformation and lateral root development in soybean. Front Microbiol 2023; 14:1257270. [PMID: 37692409 PMCID: PMC10483135 DOI: 10.3389/fmicb.2023.1257270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 07/31/2023] [Indexed: 09/12/2023] Open
Abstract
Agrobacterium-mediated soybean transformation is the simplest method of gene transfer. However, the low transformation due to the intractable nature of soybean genotypes hinders this process. The use of biochemicals (acetosyringone, cinnamic acid, flavonoids, etc.) plays an important role in increasing soybean transformation. These biochemicals induce chemotaxis and virulence gene activation during the infection process. Here we identified a biochemical, aztreonam (a monobactam), for high agrobacterium-mediated transformation in soybean. The soybean explants from three genotypes were inoculated with A. tumefaciens (GV3101) harboring the pMDC32 vector containing hpt or the GmUbi-35S-GUS vector containing the GUS gene during two separate events. High transient GUS expression was obtained during cotyledon explant culture on MS media supplemented with 2.5 mg/L aztreonam. The aztreonam-treated explants showed high efficiency in transient and stable transformation as compared to the untreated control. The transformation of aztreonam-treated explants during seed imbibition resulted in an average of 21.1% as compared to 13.2% in control by using the pMDC32 vector and 28.5 and 20.7% while using the GUS gene cassette, respectively. Based on these findings, the metabolic analysis of the explant after aztreonam treatment was assessed. The high accumulation of flavonoids was identified during an untargeted metabolic analysis. The quantification results showed a significantly high accumulation of the four compounds, i.e., genistein, apigenin, naringenin, and genistin, in cotyledon explants after 18 hours of aztreonam treatment. Alongside this, aztreonam also had some surprising effects on root elongation and lateral root formation when compared to indole-3-butyric acid (IBA). Our findings were limited to soybeans. However, the discovery of aztreonam and its effect on triggering flavonoids could lead to the potential role of aztreonam in the agrobacterium-mediated transformation of different crops.
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Affiliation(s)
- M. Waqar Khan
- State Key Laboratory of Crop Stress Adaptation and Improvement, Henan Joint International Laboratory for Crop Multi-Omics Research, School of Life Sciences, Henan University, Kaifeng, China
| | | | | | - Xuebin Zhang
- State Key Laboratory of Crop Stress Adaptation and Improvement, Henan Joint International Laboratory for Crop Multi-Omics Research, School of Life Sciences, Henan University, Kaifeng, China
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6
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Shomodder A, Imaizumi T, Nagata M, Kasai E, Shiina T, Tsuta M, Thammawong M, Nakano K. Existence of circadian rhythm and its response behavior under different storage conditions of soybean sprouts. JOURNAL OF PLANT PHYSIOLOGY 2023; 281:153906. [PMID: 36621022 DOI: 10.1016/j.jplph.2022.153906] [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: 06/09/2022] [Revised: 12/05/2022] [Accepted: 12/21/2022] [Indexed: 06/17/2023]
Abstract
The circadian system plays an essential role in plant cells, and numerous physiological events are generally modulated by circadian clock genes. To further improve postharvest handling of fresh produce, it is vital to understanding the behavior of clock gene expression and its underlying interactions with changes in quality. In this study, the effect of temperature and controlled atmosphere storage on the expression of clock genes (GmLCL1, GmPRR7, GmGI, GmTOC1, and GmLUX), postharvest quality characteristics and their related genes in soybean sprouts were investigated. By fitting the obtained gene expression level using the qPCR method with the cosine curve equation, it was successfully found that the circadian rhythm existed under constant dark storage conditions of soybean sprouts. A significant rhythm in clock gene expression was observed in control soybean sprouts. In contrast, low temperature storage diminished the cyclic expression of GmLCL1, GmPRR7, and GmTOC1, which also affected GmGI and GmLUX expression. Additionally, high CO2 concentrations during storage disturbed the circadian clock by affecting the phase and amplitude of each gene; for low O2 concentrations, it was only affected by amplitude. Interestingly, low temperature, low O2, and high CO2 maintained postharvest quality, including reduced respiration, weight loss and browning incidence. The expression behaviors of postharvest quality attribute-related genes (GmFUM1, GmCS, Gm2-OGDH, GmPPO1, GmPAL) were also influenced by the storage treatments. Overall, the findings first suggest a possible link between clock disruption and postharvest quality maintenance of soybean sprouts.
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Affiliation(s)
- Anupama Shomodder
- The United Graduate School of Agricultural Science, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Teppei Imaizumi
- The United Graduate School of Agricultural Science, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Masayasu Nagata
- The United Graduate School of Agricultural Science, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Eri Kasai
- Faculty of Home Economics, Gifu Women's University, 80 Taroumaru, Gifu City, Gifu, 501-2592, Japan
| | - Takeo Shiina
- Graduate School of Horticulture, Chiba University, 648, Matsudo, Matsudo-shi, Chiba, 271-8510, Japan
| | - Mizuki Tsuta
- Institute of Food Research, National Agriculture and Food Research Organization, 2-1-2 Kannondai, Tsukuba, Ibaraki, 305-8642, Japan
| | - Manasikan Thammawong
- The United Graduate School of Agricultural Science, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan.
| | - Kohei Nakano
- The United Graduate School of Agricultural Science, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan.
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Xu H, Guo Y, Qiu L, Ran Y. Progress in Soybean Genetic Transformation Over the Last Decade. FRONTIERS IN PLANT SCIENCE 2022; 13:900318. [PMID: 35755694 PMCID: PMC9231586 DOI: 10.3389/fpls.2022.900318] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Accepted: 05/11/2022] [Indexed: 05/13/2023]
Abstract
Soybean is one of the important food, feed, and biofuel crops in the world. Soybean genome modification by genetic transformation has been carried out for trait improvement for more than 4 decades. However, compared to other major crops such as rice, soybean is still recalcitrant to genetic transformation, and transgenic soybean production has been hampered by limitations such as low transformation efficiency and genotype specificity, and prolonged and tedious protocols. The primary goal in soybean transformation over the last decade is to achieve high efficiency and genotype flexibility. Soybean transformation has been improved by modifying tissue culture conditions such as selection of explant types, adjustment of culture medium components and choice of selection reagents, as well as better understanding the transformation mechanisms of specific approaches such as Agrobacterium infection. Transgenesis-based breeding of soybean varieties with new traits is now possible by development of improved protocols. In this review, we summarize the developments in soybean genetic transformation to date, especially focusing on the progress made using Agrobacterium-mediated methods and biolistic methods over the past decade. We also discuss current challenges and future directions.
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Affiliation(s)
- Hu Xu
- Tianjin Genovo Biotechnology Co., Ltd., Tianjin, China
| | - Yong Guo
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Lijuan Qiu
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
- *Correspondence: Lijuan Qiu,
| | - Yidong Ran
- Tianjin Genovo Biotechnology Co., Ltd., Tianjin, China
- Yidong Ran,
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8
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Li Y, Guo G, Xu H, He T, Zong Y, Zhang S, Faheem M, Lu R, Zhou L, Liu C. Comparative transcriptome analysis reveals compatible and recalcitrant genotypic response of barley microspore-derived embryogenic callus toward Agrobacterium infection. BMC PLANT BIOLOGY 2021; 21:579. [PMID: 34876002 PMCID: PMC8650547 DOI: 10.1186/s12870-021-03346-2] [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: 09/16/2021] [Accepted: 11/15/2021] [Indexed: 05/16/2023]
Abstract
BACKGROUND The Agrobacterium mediated transformation has been routinely used in lots of plant species as a powerful tool to deliver genes of interest into a host plant. However, the transformation of elite and commercially valuable cultivar is still limited by the genotype-dependency, and the efficiency of Agrobacterium infection efficiency is crucial for the success of transformation. RESULTS In this study, the microspore-derived embryogenic calli (MDEC) of barley elite cultivars and breeding lines were employed as unique subjects to characterize the genotypic response during Agrobacterium infection process. Our results identified compatible barley genotypes (GanPi 6 and L07, assigned as GP6-L07 group) and one recalcitrant genotype (Hong 99, assigned as H99) for the Agrobacterium strain LBA4404 infection using GUS assay. The accumulation trend of reactive oxygen species (ROS) was similar among genotypes across the time course. The results of RNA-seq depicted that the average expressional intensity of whole genomic genes was similar among barley genotypes during Agrobacterium infection. However, the numbers of differentially expressed genes (DEGs) exhibited significant expressional variation between GP6-L07 and H99 groups from 6 to 12 h post-inoculation (hpi). Gene ontology (GO) enrichment analysis revealed different regulation patterns for the predicted biological processes between the early (up-regulated DEGs overrepresented at 2 hpi) and late stages (down-regulated DEGs overrepresented from 6 to 24 hpi) of infection. KEGG analysis predicted 12 pathways during Agrobacterium infection. Among which one pathway related to pyruvate metabolism was enriched in GP6 and L07 at 6 hpi. Two pathways related to plant hormone signal transduction and DNA replication showed expressional variation between GP6-L07 and H99 at 24 hpi. It was further validated by qRT-PCR assay for seven candidate genes (Aldehyde dehydrogenase, SAUR, SAUR50, ARG7, Replication protein A, DNA helicase and DNA replication licensing factor) involved in the three pathways, which are all up-regulated in compatible while down-regulated in recalcitrant genotypes, suggesting the potential compatibility achieved at later stage for the growth of Agrobacterium infected cells. CONCLUSIONS Our findings demonstrated the similarity and difference between compatible and recalcitrant genotypes of barley MDEC upon Agrobacterium infection. Seven candidate genes involved in pyruvate metabolism, hormonal signal transduction and DNA replication were identified, which advocates the genotypic dependency during Agrobacterium infection process.
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Affiliation(s)
- Yingbo Li
- Biotech Research Institute, Shanghai Academy of Agricultural Sciences/Key Laboratory of Agricultural Genetics and Breeding, Shanghai, China
| | - Guimei Guo
- Biotech Research Institute, Shanghai Academy of Agricultural Sciences/Key Laboratory of Agricultural Genetics and Breeding, Shanghai, China
| | - Hongwei Xu
- Biotech Research Institute, Shanghai Academy of Agricultural Sciences/Key Laboratory of Agricultural Genetics and Breeding, Shanghai, China
| | - Ting He
- Biotech Research Institute, Shanghai Academy of Agricultural Sciences/Key Laboratory of Agricultural Genetics and Breeding, Shanghai, China
| | - Yingjie Zong
- Biotech Research Institute, Shanghai Academy of Agricultural Sciences/Key Laboratory of Agricultural Genetics and Breeding, Shanghai, China
| | - Shuwei Zhang
- Biotech Research Institute, Shanghai Academy of Agricultural Sciences/Key Laboratory of Agricultural Genetics and Breeding, Shanghai, China
| | | | - Ruiju Lu
- Biotech Research Institute, Shanghai Academy of Agricultural Sciences/Key Laboratory of Agricultural Genetics and Breeding, Shanghai, China
| | - Longhua Zhou
- Biotech Research Institute, Shanghai Academy of Agricultural Sciences/Key Laboratory of Agricultural Genetics and Breeding, Shanghai, China.
| | - Chenghong Liu
- Biotech Research Institute, Shanghai Academy of Agricultural Sciences/Key Laboratory of Agricultural Genetics and Breeding, Shanghai, China.
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9
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Che P, Chang S, Simon MK, Zhang Z, Shaharyar A, Ourada J, O'Neill D, Torres-Mendoza M, Guo Y, Marasigan KM, Vielle-Calzada JP, Ozias-Akins P, Albertsen MC, Jones TJ. Developing a rapid and highly efficient cowpea regeneration, transformation and genome editing system using embryonic axis explants. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2021; 106:817-830. [PMID: 33595147 DOI: 10.1101/738971] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 02/11/2021] [Indexed: 05/21/2023]
Abstract
Cowpea (Vigna unguiculata (L.) Walp.) is one of the most important legume crops planted worldwide, but despite decades of effort, cowpea transformation is still challenging due to inefficient Agrobacterium-mediated transfer DNA delivery, transgenic selection and in vitro shoot regeneration. Here, we report a highly efficient transformation system using embryonic axis explants isolated from imbibed mature seeds. We found that removal of the shoot apical meristem from the explants stimulated direct multiple shoot organogenesis from the cotyledonary node tissue. The application of a previously reported ternary transformation vector system provided efficient Agrobacterium-mediated gene delivery, while the utilization of spcN as selectable marker enabled more robust transgenic selection, plant recovery and transgenic plant generation without escapes and chimera formation. Transgenic cowpea plantlets developed exclusively from the cotyledonary nodes at frequencies of 4% to 37% across a wide range of cowpea genotypes. CRISPR/Cas-mediated gene editing was successfully demonstrated. The transformation principles established here could also be applied to other legumes to increase transformation efficiencies.
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Affiliation(s)
- Ping Che
- Corteva Agriscience, Johnston, Iowa, 50131, USA
| | | | | | - Zhifen Zhang
- Department of Horticulture and Institute of Plant Breeding, Genetics & Genomics, University of Georgia Tifton Campus, Tifton, GA, 31973, USA
| | | | | | | | - Mijael Torres-Mendoza
- Group of Reproductive Development and Apomixis, UGA Laboratorio Nacional de Genómica para la Biodiversidad, CINVESTAV Irapuato, Guanajuato, 36821, México
| | - Yinping Guo
- Department of Horticulture and Institute of Plant Breeding, Genetics & Genomics, University of Georgia Tifton Campus, Tifton, GA, 31973, USA
| | - Kathleen M Marasigan
- Department of Horticulture and Institute of Plant Breeding, Genetics & Genomics, University of Georgia Tifton Campus, Tifton, GA, 31973, USA
| | - Jean-Philippe Vielle-Calzada
- Group of Reproductive Development and Apomixis, UGA Laboratorio Nacional de Genómica para la Biodiversidad, CINVESTAV Irapuato, Guanajuato, 36821, México
| | - Peggy Ozias-Akins
- Department of Horticulture and Institute of Plant Breeding, Genetics & Genomics, University of Georgia Tifton Campus, Tifton, GA, 31973, USA
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10
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Che P, Chang S, Simon MK, Zhang Z, Shaharyar A, Ourada J, O’Neill D, Torres‐Mendoza M, Guo Y, Marasigan KM, Vielle‐Calzada J, Ozias‐Akins P, Albertsen MC, Jones TJ. Developing a rapid and highly efficient cowpea regeneration, transformation and genome editing system using embryonic axis explants. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2021; 106:817-830. [PMID: 33595147 PMCID: PMC8252785 DOI: 10.1111/tpj.15202] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 02/11/2021] [Indexed: 05/21/2023]
Abstract
Cowpea (Vigna unguiculata (L.) Walp.) is one of the most important legume crops planted worldwide, but despite decades of effort, cowpea transformation is still challenging due to inefficient Agrobacterium-mediated transfer DNA delivery, transgenic selection and in vitro shoot regeneration. Here, we report a highly efficient transformation system using embryonic axis explants isolated from imbibed mature seeds. We found that removal of the shoot apical meristem from the explants stimulated direct multiple shoot organogenesis from the cotyledonary node tissue. The application of a previously reported ternary transformation vector system provided efficient Agrobacterium-mediated gene delivery, while the utilization of spcN as selectable marker enabled more robust transgenic selection, plant recovery and transgenic plant generation without escapes and chimera formation. Transgenic cowpea plantlets developed exclusively from the cotyledonary nodes at frequencies of 4% to 37% across a wide range of cowpea genotypes. CRISPR/Cas-mediated gene editing was successfully demonstrated. The transformation principles established here could also be applied to other legumes to increase transformation efficiencies.
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Affiliation(s)
- Ping Che
- Corteva AgriscienceJohnstonIowa50131USA
| | - Shujun Chang
- Corteva AgriscienceJohnstonIowa50131USA
- Present address:
Benson Hill Biosystems1100 Corporate Square Dr. Suite 150St. LouisMO63132USA
| | | | - Zhifen Zhang
- Department of Horticulture and Institute of Plant Breeding, Genetics & GenomicsUniversity of Georgia Tifton CampusTiftonGA31973USA
| | - Ahmed Shaharyar
- Corteva AgriscienceJohnstonIowa50131USA
- Present address:
Benson Hill Biosystems1100 Corporate Square Dr. Suite 150St. LouisMO63132USA
| | - Jesse Ourada
- Corteva AgriscienceJohnstonIowa50131USA
- Present address:
Benson Hill Biosystems1100 Corporate Square Dr. Suite 150St. LouisMO63132USA
| | | | - Mijael Torres‐Mendoza
- Group of Reproductive Development and Apomixis, UGA Laboratorio Nacional de Genómica para la BiodiversidadCINVESTAV IrapuatoGuanajuato36821México
| | - Yinping Guo
- Department of Horticulture and Institute of Plant Breeding, Genetics & GenomicsUniversity of Georgia Tifton CampusTiftonGA31973USA
| | - Kathleen M. Marasigan
- Department of Horticulture and Institute of Plant Breeding, Genetics & GenomicsUniversity of Georgia Tifton CampusTiftonGA31973USA
| | - Jean‐Philippe Vielle‐Calzada
- Group of Reproductive Development and Apomixis, UGA Laboratorio Nacional de Genómica para la BiodiversidadCINVESTAV IrapuatoGuanajuato36821México
| | - Peggy Ozias‐Akins
- Department of Horticulture and Institute of Plant Breeding, Genetics & GenomicsUniversity of Georgia Tifton CampusTiftonGA31973USA
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11
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Martinez-Ballesta MC, Chelbi N, Lopez-Zaplana A, Carvajal M. Discerning the mechanism of the multiwalled carbon nanotubes effect on root cell water and nutrient transport. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2020; 146:23-30. [PMID: 31722266 DOI: 10.1016/j.plaphy.2019.11.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 11/05/2019] [Accepted: 11/05/2019] [Indexed: 06/10/2023]
Abstract
Multiwalled carbon nanotubes (MWCNTs) are tubular carbon structures that are able to enter cells through holes in the plasma membrane and produce changes in gene expression. In this work, we compared the functionality of carbon nanotubes with the electroporation that perforates membranes, in Brassica oleracea var. Italica (broccoli) root protoplasts. For this, we combined those treatments with control conditions and abiotic stress (salinity) in order to elucidate if the response is related to conditions optimal for the plant. The measurement of the osmotic water permeability (Pf), mineral concentrations and expression levels of aquaporins (PIP1s and PIP2s) revealed that the physiological action of the nanotubes was similar to that achieved with electroporation for both Pf and the concentrations of nutrients in the protoplasts. On the other hand, PIP1s and PIP2s expression was increased in the protoplasts receiving the control plus MWCNTs treatment but not in those treated with electroporation. This opens new and interesting lines, as it shows that nanotubes are able to modulate the expression of aquaporins.
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Affiliation(s)
- M Carmen Martinez-Ballesta
- Aquaporins Group. Plant Nutrition Department, Centro de Edafología y Biología Aplicada del Segura (CEBAS-CSIC), Campus Universitario de Espinardo, Edificio 25, 30100, Murcia, Spain
| | - Najla Chelbi
- Laboratory of Extremophile Plants, Center of Biotechnology of Borj-Cedria (LEP-CBBC), P. O. Box 901, 2050, Hammam-Lif, Tunisia
| | - Alvaro Lopez-Zaplana
- Aquaporins Group. Plant Nutrition Department, Centro de Edafología y Biología Aplicada del Segura (CEBAS-CSIC), Campus Universitario de Espinardo, Edificio 25, 30100, Murcia, Spain
| | - Micaela Carvajal
- Aquaporins Group. Plant Nutrition Department, Centro de Edafología y Biología Aplicada del Segura (CEBAS-CSIC), Campus Universitario de Espinardo, Edificio 25, 30100, Murcia, Spain.
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12
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Zhou H, Yao X, Zhao Q, Zhang W, Zhang B, Xie F. Rapid Effect of Nitrogen Supply for Soybean at the Beginning Flowering Stage on Biomass and Sucrose Metabolism. Sci Rep 2019; 9:15530. [PMID: 31664126 PMCID: PMC6820794 DOI: 10.1038/s41598-019-52043-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Accepted: 09/24/2019] [Indexed: 11/24/2022] Open
Abstract
Nitrogen application at the beginning flowering stage (R1 stage) increased the soybean grain yield, however, the rapid effect of enriched nitrogen at R1 growth stage on soybean dry matter accumulation and sugar metabolism is still unclear. Continuous high nitrogen (CHN), Continuous low nitrogen (CLN), Enriched nitrogen supply at R1 stage (ENS) treatments were applied on two soybean cultivars (Liaodou11, Liaodou14), to investigate the effect of enriched nitrogen on plant biomass accumulation and sucrose metabolism. After 12 h of ENS treatment, the root/shoot rate of both cultivars were lower than that of CLN, but at 24 h it was no significant difference between ENS and CLN. Enriched N at R1 stage, soybean kept a balance of sucrose synthesis and decomposition in leaf by affecting sucrose synthetase (SS) and sucrose phosphate synthase (SPS) activities. Under N limitation condition the plant dry matter accumulation supported root growth priority. Enriched N at R1 stage resulted in the rapid shoot biomass accumulation. In high yield cultivar, the shoot growth was priority to root growth, the common yield cultivar was on the contrary. Our result suggest that enrich N at R1 stage resulted in the accumulation of biomass in shoot rapidly.
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Affiliation(s)
- Hongli Zhou
- Soybean Research Institute, Shenyang Agricultural University, Shenyang, China
| | - Xingdong Yao
- Soybean Research Institute, Shenyang Agricultural University, Shenyang, China
| | - Qiang Zhao
- Soybean Research Institute, Shenyang Agricultural University, Shenyang, China
| | - Wei Zhang
- Soybean Research Institute, Jilin Academy of Agricultural Sciences, Changchun, China
| | - Bo Zhang
- Virginia Tech Department of Crop, Soil and Environmental Sciences, Blacksburg, VA, USA
| | - Futi Xie
- Soybean Research Institute, Shenyang Agricultural University, Shenyang, China.
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13
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Janani C, Sundararajan B, Kumari BR. Construction and transformation of peroxisome proliferator activated receptor gamma (RnPPARγ) gene using Agrobacterium tumefaciens into Glycine max L. Merr. GENE REPORTS 2019. [DOI: 10.1016/j.genrep.2019.100427] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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14
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Zhao Q, Du Y, Wang H, Rogers HJ, Yu C, Liu W, Zhao M, Xie F. 5-Azacytidine promotes shoot regeneration during Agrobacterium-mediated soybean transformation. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2019; 141:40-50. [PMID: 31128562 DOI: 10.1016/j.plaphy.2019.05.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 04/07/2019] [Accepted: 05/14/2019] [Indexed: 05/27/2023]
Abstract
Agrobacterium-mediated soybean transformation has been greatly improved in recent years, however the transformation efficiency is still low and highly genotype-dependent when compared to other species. Here, we characterized seventeen soybean genotypes based on their genetic transformation efficiencies, i.e., high and low, during Agrobacterium-mediated transformation. To reveal the molecular basis of this transformation difference, we constructed a highly efficient transient transgene expression system using soybean cotyledon protoplasts and then assess the methylation levels of promoter and coding regions of an EYFP (enhanced yellow fluorescent protein) gene introduced into the protoplast cultures of various soybean genotypes using BSP (bisulfite sequencing PCR). Increased methylation was found to be associated with the considerably decreased transfection efficiency (as percentage of EYFP fluorescent protoplasts) in low-efficacy genotypes as compared with those in high-efficacy on three DAT (day after transfection). 5-Azacytidine (5-Azac), a demethylating reagent commonly applied in epigenetic researches, significantly improved the transient transfection efficiency and transgene expression level in low-efficiency genotypes. Furthermore, the shoot regeneration efficiency in low-efficiency genotypes was substantially increased by 5-Azac treatment in an Agrobacterium-mediated soybean transformation system. Taken together, we concluded that lower methylation level in transgene contributed to enhanced shoot regeneration in Agrobacterium-mediated soybean transformation.
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Affiliation(s)
- Qiang Zhao
- Agricultural College, Shenyang Agricultural University, Shenyang, 10866, PR China.
| | - Yanli Du
- Agricultural College, Shenyang Agricultural University, Shenyang, 10866, PR China.
| | - Hetong Wang
- College of Life Science and Bioengineering, Shenyang University, Shenyang, 110044, PR China.
| | - Hilary J Rogers
- Cardiff University, School of Biosciences, Cardiff, CF10 3TL, UK.
| | - Cuimei Yu
- Agricultural College, Shenyang Agricultural University, Shenyang, 10866, PR China.
| | - Wan Liu
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, PR China.
| | - Mingzhe Zhao
- Agricultural College, Shenyang Agricultural University, Shenyang, 10866, PR China.
| | - Futi Xie
- Agricultural College, Shenyang Agricultural University, Shenyang, 10866, PR China.
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15
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Yang S, Hu Y, Cheng Z, Rice JH, Miao L, Ma J, Hewezi T, Li Y, Gai J. An efficient Agrobacterium-mediated soybean transformation method using green fluorescent protein as a selectable marker. PLANT SIGNALING & BEHAVIOR 2019; 14:1612682. [PMID: 31056001 PMCID: PMC6619996 DOI: 10.1080/15592324.2019.1612682] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Accepted: 04/22/2019] [Indexed: 05/13/2023]
Abstract
Genetic transformation plays a vital role in gene functional study and molecular breeding of soybean. Conventional soybean transformation methods using chemical selectable markers, such as antibiotic or herbicide resistance genes, rely on the identification of positive transgenic lines at advanced developmental stages, making selection procedure labor intensive and time consuming. Utilization of a visual maker to track the transgene would avoid the uncertainty and blindness in the transformation process. In this research, we used green fluorescent protein (GFP) as the selectable marker to detect transgenics at early stages of soybean development. Positive transformants were detected recurrently during each stage of the process based on visualization of the green fluorescence signal, which help us to discard the non-transgenic ones in each stage to reduce the unnecessary experimental cost and lab space. In addition, the positive transgenic seeds can be identified before planting for early detection of transgene and obtain homozygous lines in advance. The method established in this study is also a useful reference for other plant species.
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Affiliation(s)
- Songnan Yang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory for Biology and Genetic Improvement of Soybean (General, Ministry of Agriculture), National Center for Soybean Improvement, Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing, China
- Department of Plant Sciences, University of Tennessee, Knoxville, USA
| | - Yanfeng Hu
- Department of Plant Sciences, University of Tennessee, Knoxville, USA
| | - Zongming Cheng
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory for Biology and Genetic Improvement of Soybean (General, Ministry of Agriculture), National Center for Soybean Improvement, Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing, China
- Department of Plant Sciences, University of Tennessee, Knoxville, USA
| | - John Hollis Rice
- Department of Plant Sciences, University of Tennessee, Knoxville, USA
| | - Long Miao
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory for Biology and Genetic Improvement of Soybean (General, Ministry of Agriculture), National Center for Soybean Improvement, Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing, China
| | - Jing Ma
- Department of Plant Sciences, University of Tennessee, Knoxville, USA
| | - Tarek Hewezi
- Department of Plant Sciences, University of Tennessee, Knoxville, USA
| | - Yan Li
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory for Biology and Genetic Improvement of Soybean (General, Ministry of Agriculture), National Center for Soybean Improvement, Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing, China
| | - Junyi Gai
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Key Laboratory for Biology and Genetic Improvement of Soybean (General, Ministry of Agriculture), National Center for Soybean Improvement, Jiangsu Collaborative Innovation Center for Modern Crop Production, Nanjing Agricultural University, Nanjing, China
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