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Guo G, Li MJ, Lai JL, Du ZY, Liao QS. Development of tobacco rattle virus-based platform for dual heterologous gene expression and CRISPR/Cas reagent delivery. Plant Sci 2022; 325:111491. [PMID: 36216296 DOI: 10.1016/j.plantsci.2022.111491] [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] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 09/29/2022] [Accepted: 10/05/2022] [Indexed: 06/16/2023]
Abstract
A large number of viral delivery systems have been developed for characterizing functional genes and producing heterologous recombinant proteins in plants, and but most of them are unable to co-express two fusion-free foreign proteins in the whole plant for extended periods of time. In this study, we modified tobacco rattle virus (TRV) as a TRVe dual delivery vector, using the strategy of gene substitution. The reconstructed TRVe had the capability to simultaneously produce two fusion-free foreign proteins at the whole level of Nicotiana benthamiana, and maintained the genetic stability for the insert of double foreign genes. Moreover, TRVe allowed systemic expression of two foreign proteins with the total lengths up to ∼900 aa residues. In addition, Cas12a protein and crRNA were delivered by the TRVe expression system for site-directed editing of genomic DNA in N. benthamiana 16c line constitutively expressing green fluorescent protein (GFP). Taker together, the TRV-based delivery system will be a simple and powerful means to rapidly co-express two non-fused foreign proteins at the whole level and facilitate functional genomics studies in plants.
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Affiliation(s)
- Ge Guo
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
| | - Meng-Jiao Li
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
| | - Jia-Liang Lai
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
| | - Zhi-You Du
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
| | - Qian-Sheng Liao
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, PR China.
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Zhu XM, Liang S, Shi HB, Lu JP, Dong B, Liao QS, Lin FC, Liu XH. VPS9 domain-containing proteins are essential for autophagy and endocytosis in Pyricularia oryzae. Environ Microbiol 2018; 20:1516-1530. [DOI: 10.1111/1462-2920.14076] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 02/14/2018] [Indexed: 11/29/2022]
Affiliation(s)
- Xue-Ming Zhu
- State Key Laboratory for Rice Biology, Biotechnology Institute; Zhejiang University; Hangzhou 310058 People's Republic of China
| | - Shuang Liang
- State Key Laboratory for Rice Biology, Biotechnology Institute; Zhejiang University; Hangzhou 310058 People's Republic of China
| | - Huan-Bin Shi
- State Key Laboratory for Rice Biology, Biotechnology Institute; Zhejiang University; Hangzhou 310058 People's Republic of China
| | - Jian-Ping Lu
- College of Life Sciences; Zhejiang University; Hangzhou 310058 People's Republic of China
| | - Bo Dong
- Institute of Virology and Biotechnology; Zhejiang Academy of Agricultural Science; Hangzhou 310021 People's Republic of China
| | - Qian-Sheng Liao
- College of Life Sciences; Zhejiang SCI-Tech University; Hangzhou 310018 People's Republic of China
| | - Fu-Cheng Lin
- State Key Laboratory for Rice Biology, Biotechnology Institute; Zhejiang University; Hangzhou 310058 People's Republic of China
| | - Xiao-Hong Liu
- State Key Laboratory for Rice Biology, Biotechnology Institute; Zhejiang University; Hangzhou 310058 People's Republic of China
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Yang J, Zhang TY, Liao QS, He L, Li J, Zhang HM, Chen X, Li J, Yang J, Li JB, Chen JP. Chinese Wheat Mosaic Virus-Induced Gene Silencing in Monocots and Dicots at Low Temperature. Front Plant Sci 2018; 9:1627. [PMID: 30487803 PMCID: PMC6247046 DOI: 10.3389/fpls.2018.01627] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Accepted: 10/18/2018] [Indexed: 05/21/2023]
Abstract
Virus-induced gene silencing (VIGS) is an important tool for functional genomics studies in plants. With this method, it is possible to target most endogenous genes and downregulate the messenger RNA (mRNA) in a sequence-specific manner. Chinese wheat mosaic virus (CWMV) has a bipartite, single-strand positive RNA genome, and can infect both wheat and Nicotiana benthamiana, and the optimal temperature for systemic infection in plants is 17°C. To assess the potential of the virus as a vector for gene silencing at low temperature, a fragment of the N. benthamiana or wheat phytoene desaturase (PDS) gene was expressed from a modified CWMV RNA2 clone and the resulting photo bleaching in infected plants was used as a reporter for silencing. Downregulation of PDS mRNA was also measured by quantitative reverse-transcriptase polymerase chain reaction (RT-qPCR). In experiments using fragments of PDS ranging from 500 to 1500 nucleotides, insert length influenced the stability and the efficiency of VIGS. The CWMV induced silencing system was also used to suppress miR165/166 and miR3134a through expression of miRNA target mimics. The relative expression levels of mature miR165/166 and miR3134a decreased whereas the transcript levels of their target genes increased. Interestingly, we also found the CWMV-induced silencing system was more efficient compare with the vector based on Barley stripe mosaic virus (BSMV) or Foxtail mosaic virus (FoMV) in wheat or the vector based on TRV in N. benthamiana at 17°C. In summary, the CWMV vector is effective in silencing endogenous genes and miRNAs at 17°C, thereby providing a powerful tool for gene function analysis in both N. benthamiana and wheat at low temperature.
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Affiliation(s)
- Jian Yang
- Institute of Plant Virology, Ningbo University, Ningbo, China
| | - Tian-Ye Zhang
- Institute of Plant Virology, Ningbo University, Ningbo, China
| | - Qian-Sheng Liao
- College of Life Science, Zhejiang SCI-Tech University, Hangzhou, China
| | - Long He
- Institute of Plant Virology, Ningbo University, Ningbo, China
| | - Juang Li
- Institute of Plant Virology, Ningbo University, Ningbo, China
| | - Heng-Mu Zhang
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Key Laboratory of Plant Protection and Biotechnology, Ministry of Agriculture, Beijing, China
- Zhejiang Provincial Key Laboratory of Plant Virology, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
- *Correspondence: Heng-Mu Zhang, Jian-Ping Chen,
| | - Xuan Chen
- Institute of Plant Virology, Ningbo University, Ningbo, China
| | - Jing Li
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Key Laboratory of Plant Protection and Biotechnology, Ministry of Agriculture, Beijing, China
- Zhejiang Provincial Key Laboratory of Plant Virology, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Jin Yang
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Key Laboratory of Plant Protection and Biotechnology, Ministry of Agriculture, Beijing, China
- Zhejiang Provincial Key Laboratory of Plant Virology, Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Jin-Bang Li
- Nanyang Academy of Agricultural Sciences, Nanyang, China
| | - Jian-Ping Chen
- Institute of Plant Virology, Ningbo University, Ningbo, China
- *Correspondence: Heng-Mu Zhang, Jian-Ping Chen,
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Du ZY, Chen FF, Liao QS, Zhang HR, Chen YF, Chen JS. 2b ORFs encoded by subgroup IB strains of cucumber mosaic virus induce differential virulence on Nicotiana species. J Gen Virol 2007; 88:2596-2604. [PMID: 17698672 DOI: 10.1099/vir.0.82927-0] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Cucumber mosaic virus (CMV)-encoded 2b protein from subgroup IA or subgroup II was shown to be a determinant of virulence in many solanaceous hosts. In this study, the virulence of 2b proteins from subgroup IB strains was analysed using four intraspecies hybrid viruses, which were generated by precise replacement of the 2b open reading frame (ORF) in subgroup IA strain Fny-CMV with the 2b ORFs of four subgroup IB strains, Cb7-CMV, PGs-CMV, Rad35-CMV and Na-CMV, generating FCb7(2b)-CMV, FPGs(2b)-CMV, FRad35(2b)-CMV and FNa(2b)-CMV, respectively. FCb7(2b)-CMV was more virulent than Fny-CMV, and was similar in phenotype to its parental virus Cb7-CMV on the three Nicotiana species tested. FNa(2b)-CMV also was virulent on these host species, equivalent to Fny-CMV or Na-CMV. However, FRad35(2b)-CMV only caused mild mosaic or undetectable symptoms on all the host species tested, and was less virulent than Fny-CMV or Rad35-CMV. FPGs(2b)-CMV infected all the host species systemically, and induced either mosaic or barely visible symptoms, demonstrating that the inability of PGs-CMV to infect these three Nicotiana species was not due to its 2b protein. The diverse virulence was shown to be mediated by the 2b proteins rather than the C-terminal overlapping parts of the 2a proteins, and was associated with the level of viral progeny RNA accumulation in systemically infected leaves, but not with the rate of long-distance viral movement in host plants. Through analysis of encapsidation of viral RNAs, there was an apparent correlation between the virulence and the high level of encapsidated RNA 2 in virions of Fny-CMV, FCb7(2b)-CMV and FNa(2b)-CMV.
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Affiliation(s)
- Zhi-You Du
- Institute of Bioengineering, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
| | - Fei-Fei Chen
- Institute of Bioengineering, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
| | - Qian-Sheng Liao
- College of Life Sciences, Zhejiang University, Hangzhou 310029, PR China
- Institute of Bioengineering, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
| | - Hua-Rong Zhang
- College of Life Sciences, Zhejiang University, Hangzhou 310029, PR China
| | - Yan-Fei Chen
- Institute of Bioengineering, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
| | - Ji-Shuang Chen
- Institute of Bioengineering, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
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