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Hong Y, Wei R, Li C, Cai H, Chen E, Pan X, Zhang W. Establishment of virus-induced gene-silencing system in Juglans sigillata Dode and functional analysis of JsFLS2 and JsFLS4. Gene 2024; 913:148385. [PMID: 38493973 DOI: 10.1016/j.gene.2024.148385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 03/11/2024] [Accepted: 03/14/2024] [Indexed: 03/19/2024]
Abstract
Juglans sigillata Dode is one of the important tree species in southwest China, and it has significant economic and ecological value. However, there is still a lack of effective methods to identify the functional genes of J. sigillata. By verifying the model plant tobacco, the pTRV2::JsPDS vector was able to cause photobleaching. This study showed that photobleaching occurred 24 and 30 d after the silencing vector was infected with aseptic seedlings and fruits of J. sigillata, respectively. When the OD600 was 0.6, and the injection dose was 500 μL, the gene silencing efficiency of aseptic seedlings was the highest at 16.7 %, significantly better than other treatments. Moreover, when the OD600 was 0.8, and the injection dose was 500 μL, the gene silencing efficiency in the walnut fruit was the highest (20 %). In addition, the VIGS system was successfully used to silence JsFLS2 and JsFLS4 genes in J. sigillata. This study also showed that the flavonol content and gene expression in the treatment group were decreased compared to the control group. In addition, the proteins transcribed and translated from the JsFLS4 gene may have higher catalytic activity for dihydroquercetin. The above results indicate that the TRV-mediated VIGS system can be an ideal tool for studying J. sigillata gene function.
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Affiliation(s)
- Yanyang Hong
- College of Agriculture, Guizhou University, Jiaxiu South Road, Guiyang, Guizhou 550025, China; Guizhou Engineering Research Center for Fruit Crops, Guizhou University, Jiaxiu South Road, Guiyang, Guizhou 550025, China
| | - Rong Wei
- College of Agriculture, Guizhou University, Jiaxiu South Road, Guiyang, Guizhou 550025, China; Guizhou Engineering Research Center for Fruit Crops, Guizhou University, Jiaxiu South Road, Guiyang, Guizhou 550025, China
| | - Chunxiang Li
- College of Agriculture, Guizhou University, Jiaxiu South Road, Guiyang, Guizhou 550025, China; Guizhou Engineering Research Center for Fruit Crops, Guizhou University, Jiaxiu South Road, Guiyang, Guizhou 550025, China
| | - Hu Cai
- College of Agriculture, Guizhou University, Jiaxiu South Road, Guiyang, Guizhou 550025, China; Guizhou Engineering Research Center for Fruit Crops, Guizhou University, Jiaxiu South Road, Guiyang, Guizhou 550025, China
| | - Erjuan Chen
- College of Agriculture, Guizhou University, Jiaxiu South Road, Guiyang, Guizhou 550025, China
| | - Xuejun Pan
- College of Agriculture, Guizhou University, Jiaxiu South Road, Guiyang, Guizhou 550025, China; Guizhou Engineering Research Center for Fruit Crops, Guizhou University, Jiaxiu South Road, Guiyang, Guizhou 550025, China.
| | - Wen'e Zhang
- College of Agriculture, Guizhou University, Jiaxiu South Road, Guiyang, Guizhou 550025, China.
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Tian L, Liu L, Jiang Y, Yang Y, Dong G, Yu H. Tobacco rattle virus-induced VcANS gene silencing in blueberry fruit. Gene 2023; 852:147054. [PMID: 36395971 DOI: 10.1016/j.gene.2022.147054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 11/07/2022] [Accepted: 11/11/2022] [Indexed: 11/16/2022]
Abstract
Blueberry (Vaccinium corymbosum L.), a woody perennial bush in the genus Vaccinium, is an economically important and popular fruit crop worldwide. Development the superior cultivars, which including excellent fruit traits, not only means higher yielding and economic efficiency, but also produce fruit that to meet the preferences of different consumers. Excavating fruit quality-related genes, studying their functions, and using transgenic or molecular-assisted breeding are beneficial to the development of excellent blueberry varieties. Genetic transformation is an excellent way to study the function of genes in plants, however, it is a labor-intensive and time-consuming process to genetically transform many woody plants, including blueberry. Virus-induced gene silencing (VIGS) provides an efficient approach to knock-down the expression of target genes for functional analysis. In this study, tobacco rattle virus induced genes silencing (TRV-VIGS) was established in blueberry fruits using the VcANS gene as a reporter. The silenced sector of the skin of blueberry fruits injected with pTRV2 (plasmid Tobacco Rattle Virus, TRV-RNA2)::VcANS remained green or white at 25 days after agroinfiltration. In agroinfiltrated materials, the VcANS transcript levels were much lower in fruits with phenotypic changes (delayed color change) than in those infiltrated with the pTRV2 empty vector. Silencing of VcANS also affected the expression of other genes involved in the anthocyanin synthesis pathway. The experimental results support that VcANS can be used as an effective marker gene for VIGS system. In addition, the TRV-VIGS system has been successfully established in blueberry fruits, which provided an effective verification method for functional identification of unknown genes in blueberry fruits.
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Shi G, Hao M, Tian B, Cao G, Wei F, Xie Z. A Methodological Advance of Tobacco Rattle Virus-Induced Gene Silencing for Functional Genomics in Plants. Front Plant Sci 2021; 12:671091. [PMID: 34149770 PMCID: PMC8212136 DOI: 10.3389/fpls.2021.671091] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 05/10/2021] [Indexed: 05/19/2023]
Abstract
As a promising high-throughput reverse genetic tool in plants, virus-induced gene silencing (VIGS) has already begun to fulfill some of this promise in diverse aspects. However, review of the technological advancements about widely used VIGS system, tobacco rattle virus (TRV)-mediated gene silencing, needs timely updates. Hence, this article mainly reviews viral vector construction, inoculation method advances, important influential factors, and summarizes the recent applications in diverse plant species, thus providing a better understanding and advice for functional gene analysis related to crop improvements.
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Affiliation(s)
- Gongyao Shi
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, China
- School of Life Sciences, Zhengzhou University, Zhengzhou, China
| | - Mengyuan Hao
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, China
- School of Life Sciences, Zhengzhou University, Zhengzhou, China
| | - Baoming Tian
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, China
- Henan International Joint Laboratory of Crop Gene Resources and Improvements, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, China
| | - Gangqiang Cao
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, China
- Henan International Joint Laboratory of Crop Gene Resources and Improvements, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, China
| | - Fang Wei
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, China
- Henan International Joint Laboratory of Crop Gene Resources and Improvements, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, China
| | - Zhengqing Xie
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, China
- Henan International Joint Laboratory of Crop Gene Resources and Improvements, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, China
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Zhang J, Yu D, Zhang Y, Liu K, Xu K, Zhang F, Wang J, Tan G, Nie X, Ji Q, Zhao L, Li C. Vacuum and Co-cultivation Agroinfiltration of (Germinated) Seeds Results in Tobacco Rattle Virus (TRV) Mediated Whole-Plant Virus-Induced Gene Silencing (VIGS) in Wheat and Maize. Front Plant Sci 2017; 8:393. [PMID: 28382049 PMCID: PMC5360694 DOI: 10.3389/fpls.2017.00393] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Accepted: 03/07/2017] [Indexed: 05/06/2023]
Abstract
Tobacco rattle virus (TRV)-mediated virus-induced gene silencing (VIGS) has been frequently used in dicots. Here we show that it can also be used in monocots, by presenting a system involving use of a novel infiltration solution (containing acetosyringone, cysteine, and Tween 20) that enables whole-plant level VIGS of (germinated) seeds in wheat and maize. Using the established system, phytoene desaturase (PDS) genes were successfully silenced, resulting in typical photo-bleaching symptoms in the leaves of treated wheat and maize. In addition, three wheat homoeoalleles of MLO, a key gene repressing defense responses to powdery mildew in wheat, were simultaneously silenced in susceptible wheat with this system, resulting in it becoming resistant to powdery mildew. The system has the advantages generally associated with TRV-mediated VIGS systems (e.g., high-efficiency, mild virus infection symptoms, and effectiveness in different organs). However, it also has the following further advantages: (germinated) seed-stage agroinfiltration; greater rapidity and convenience; whole-plant level gene silencing; adequately stable transformation; and suitability for studying functions of genes involved in seed germination and early plant development stages.
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Affiliation(s)
- Ju Zhang
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, ZhoukouChina
- Henan Key Laboratory of Crop Molecular Breeding and Bioreactor, ZhoukouChina
| | - Deshui Yu
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, ZhoukouChina
- Henan Key Laboratory of Crop Molecular Breeding and Bioreactor, ZhoukouChina
| | - Yi Zhang
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, ZhoukouChina
- Henan Key Laboratory of Crop Molecular Breeding and Bioreactor, ZhoukouChina
- College of Agronomy, Henan Agricultural University, ZhengzhouChina
| | - Kun Liu
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, ZhoukouChina
- Henan Key Laboratory of Crop Molecular Breeding and Bioreactor, ZhoukouChina
| | - Kedong Xu
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, ZhoukouChina
- Henan Key Laboratory of Crop Molecular Breeding and Bioreactor, ZhoukouChina
| | - Fuli Zhang
- College of Life Science and Agronomy, Zhoukou Normal University, ZhoukouChina
| | - Jian Wang
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, ZhoukouChina
- Henan Key Laboratory of Crop Molecular Breeding and Bioreactor, ZhoukouChina
| | - Guangxuan Tan
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, ZhoukouChina
- Henan Key Laboratory of Crop Molecular Breeding and Bioreactor, ZhoukouChina
| | - Xianhui Nie
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, ZhoukouChina
- Henan Key Laboratory of Crop Molecular Breeding and Bioreactor, ZhoukouChina
- College of Life Science and Agronomy, Zhoukou Normal University, ZhoukouChina
| | - Qiaohua Ji
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, ZhoukouChina
- Henan Key Laboratory of Crop Molecular Breeding and Bioreactor, ZhoukouChina
- College of Life Science and Agronomy, Zhoukou Normal University, ZhoukouChina
| | - Lu Zhao
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, ZhoukouChina
- Henan Key Laboratory of Crop Molecular Breeding and Bioreactor, ZhoukouChina
- College of Life Science and Agronomy, Zhoukou Normal University, ZhoukouChina
| | - Chengwei Li
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, ZhoukouChina
- Henan Key Laboratory of Crop Molecular Breeding and Bioreactor, ZhoukouChina
- College of Life Science and Technology, Henan Institute of Science and Technology, XinxiangChina
- *Correspondence: Chengwei Li,
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