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Petrov NM, Stoyanova MI, Gaur RK. siRNAs based gene silencing of potato virus Y by simultaneous blocking of HC-Pro and NIa. BIOTECHNOL BIOTEC EQ 2023. [DOI: 10.1080/13102818.2022.2149349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Affiliation(s)
- Nikolay Manchev Petrov
- Laboratory of Virology, Department of Natural Sciences, New Bulgarian University, Sofia, Bulgaria
| | - Mariya Ivanova Stoyanova
- Department of Plant Protection, Institute of Soil Science, Agrotechnologies and Plant Protection “N. Pushkarov”, Agricultural Academy, Sofia, Bulgaria
| | - Rajarshi Kumar Gaur
- Plant Biotechnology Laboratory, Department of Biotechnology, Deen Dayal Upadhyaya Gorakhpur University, Gorakhpur, Uttar Pradesh, India
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Petrov NM, Stoyanova MI, Stoev AV, Gaur RK. Induction of gene silencing of NIb gene region of Potato virus Y by dsRNAs and siRNAs and reduction of infection in potato plants cultivar Djeli. BIOTECHNOL BIOTEC EQ 2022. [DOI: 10.1080/13102818.2022.2058889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Affiliation(s)
- Nikolay Manchev Petrov
- Laboratory of Virology, Department of Natural Sciences, New Bulgarian University, Sofia, Bulgaria
| | - Mariya Ivanova Stoyanova
- Department of Plant Protection, Institute of Soil Science, Agrotechnologies and Plant Protection “N. Pushkarov”, Agricultural Academy, Sofia, Bulgaria
| | - Antoniy Vasilev Stoev
- Department of Plant Protection, Institute of Soil Science, Agrotechnologies and Plant Protection “N. Pushkarov”, Agricultural Academy, Sofia, Bulgaria
| | - Rajarshi Kumar Gaur
- Plant Biotechnology Laboratory, Department of Biotechnology, Deen Dayal Upadhyaya Gorakhpur University, Gorakhpur, Uttar Pradesh, India
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Valmonte-Cortes GR, Lilly ST, Pearson MN, Higgins CM, MacDiarmid RM. The Potential of Molecular Indicators of Plant Virus Infection: Are Plants Able to Tell Us They Are Infected? PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11020188. [PMID: 35050076 PMCID: PMC8777591 DOI: 10.3390/plants11020188] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 12/21/2021] [Accepted: 01/06/2022] [Indexed: 05/06/2023]
Abstract
To our knowledge, there are no reports that demonstrate the use of host molecular markers for the purpose of detecting generic plant virus infection. Two approaches involving molecular indicators of virus infection in the model plant Arabidopsis thaliana were examined: the accumulation of small RNAs (sRNAs) using a microfluidics-based method (Bioanalyzer); and the transcript accumulation of virus-response related host plant genes, suppressor of gene silencing 3 (AtSGS3) and calcium-dependent protein kinase 3 (AtCPK3) by reverse transcriptase-quantitative PCR (RT-qPCR). The microfluidics approach using sRNA chips has previously demonstrated good linearity and good reproducibility, both within and between chips. Good limits of detection have been demonstrated from two-fold 10-point serial dilution regression to 0.1 ng of RNA. The ratio of small RNA (sRNA) to ribosomal RNA (rRNA), as a proportion of averaged mock-inoculation, correlated with known virus infection to a high degree of certainty. AtSGS3 transcript decreased between 14- and 28-days post inoculation (dpi) for all viruses investigated, while AtCPK3 transcript increased between 14 and 28 dpi for all viruses. A combination of these two molecular approaches may be useful for assessment of virus-infection of samples without the need for diagnosis of specific virus infection.
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Affiliation(s)
- Gardette R. Valmonte-Cortes
- School of Science, AUT City Campus, Auckland University of Technology, Auckland 1142, New Zealand;
- The New Zealand Institute for Plant & Food Research Limited, 120 Mt Albert Road, Auckland 1025, New Zealand; (S.T.L.); (R.M.M.)
- Correspondence:
| | - Sonia T. Lilly
- The New Zealand Institute for Plant & Food Research Limited, 120 Mt Albert Road, Auckland 1025, New Zealand; (S.T.L.); (R.M.M.)
- School of Biological Sciences, The University of Auckland, Thomas Building, 3a Symonds Street, Auckland 1010, New Zealand;
| | - Michael N. Pearson
- School of Biological Sciences, The University of Auckland, Thomas Building, 3a Symonds Street, Auckland 1010, New Zealand;
| | - Colleen M. Higgins
- School of Science, AUT City Campus, Auckland University of Technology, Auckland 1142, New Zealand;
| | - Robin M. MacDiarmid
- The New Zealand Institute for Plant & Food Research Limited, 120 Mt Albert Road, Auckland 1025, New Zealand; (S.T.L.); (R.M.M.)
- School of Biological Sciences, The University of Auckland, Thomas Building, 3a Symonds Street, Auckland 1010, New Zealand;
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Ibrahim AB, Monteiro TR, Cabral GB, Aragão FJL. RNAi-mediated resistance to whitefly (Bemisia tabaci) in genetically engineered lettuce (Lactuca sativa). Transgenic Res 2017; 26:613-624. [PMID: 28712067 DOI: 10.1007/s11248-017-0035-0] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Accepted: 07/10/2017] [Indexed: 01/09/2023]
Abstract
RNA interference (RNAi)-based transgenic technologies have evolved as potent biochemical tools for silencing specific genes of plant pathogens and pests. The approach has been demonstrated to be useful in silencing genes in insect species. Here, we report on the successful construction of RNAi-based plasmid containing an interfering cassette designed to generate dsRNAs that target a novel v-ATPase transcript in whitefly (Bemisia tabaci), an important agricultural pest in tropical and sub-tropical regions. The presence of the transgene was confirmed in T0 and T1 generations of transgenic lettuce lines, segregating in a Mendelian fashion. Seven lines were infested with whiteflies and monitored over a period of 32 days. Analysis of mortality showed that within five days of feeding, insects on transgenic plants showed a mortality rate of 83.8-98.1%. In addition, a reduced number of eggs (95 fold less) was observed in flies feeding on transgenic lettuce plants than insects on control lines. Quantitative reverse transcription PCR showed decreased expression level of endogenous v-ATPase gene in whiteflies feeding on transgenic plants. This technology is a foundation for the production of whitefly-resistant commercial crops, improving agricultural sustainability and food security, reducing the use of more environmentally aggressive methods of pest control.
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Affiliation(s)
- Abdulrazak B Ibrahim
- Embrapa Recursos Genéticos e Biotecnologia, PqEB W5 Norte, Brasília, DF, 70770-900, Brazil
- Departamento de Biologia Celular, Universidade de Brasília, Campus Universitário, Brasília, DF, 70910-900, Brazil
- Department of Biochemistry, Ahmadu Bello University, Zaria, Nigeria
| | - Tatiane R Monteiro
- Embrapa Recursos Genéticos e Biotecnologia, PqEB W5 Norte, Brasília, DF, 70770-900, Brazil
- Departamento de Biologia Celular, Universidade de Brasília, Campus Universitário, Brasília, DF, 70910-900, Brazil
| | - Glaucia B Cabral
- Embrapa Recursos Genéticos e Biotecnologia, PqEB W5 Norte, Brasília, DF, 70770-900, Brazil
| | - Francisco J L Aragão
- Embrapa Recursos Genéticos e Biotecnologia, PqEB W5 Norte, Brasília, DF, 70770-900, Brazil.
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Wang F, Li W, Zhu J, Fan F, Wang J, Zhong W, Wang MB, Liu Q, Zhu QH, Zhou T, Lan Y, Zhou Y, Yang J. Hairpin RNA Targeting Multiple Viral Genes Confers Strong Resistance to Rice Black-Streaked Dwarf Virus. Int J Mol Sci 2016; 17:ijms17050705. [PMID: 27187354 PMCID: PMC4881527 DOI: 10.3390/ijms17050705] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Revised: 05/03/2016] [Accepted: 05/04/2016] [Indexed: 01/13/2023] Open
Abstract
Rice black-streaked dwarf virus (RBSDV) belongs to the genus Fijivirus in the family of Reoviridae and causes severe yield loss in rice-producing areas in Asia. RNA silencing, as a natural defence mechanism against plant viruses, has been successfully exploited for engineering virus resistance in plants, including rice. In this study, we generated transgenic rice lines harbouring a hairpin RNA (hpRNA) construct targeting four RBSDV genes, S1, S2, S6 and S10, encoding the RNA-dependent RNA polymerase, the putative core protein, the RNA silencing suppressor and the outer capsid protein, respectively. Both field nursery and artificial inoculation assays of three generations of the transgenic lines showed that they had strong resistance to RBSDV infection. The RBSDV resistance in the segregating transgenic populations correlated perfectly with the presence of the hpRNA transgene. Furthermore, the hpRNA transgene was expressed in the highly resistant transgenic lines, giving rise to abundant levels of 21-24 nt small interfering RNA (siRNA). By small RNA deep sequencing, the RBSDV-resistant transgenic lines detected siRNAs from all four viral gene sequences in the hpRNA transgene, indicating that the whole chimeric fusion sequence can be efficiently processed by Dicer into siRNAs. Taken together, our results suggest that long hpRNA targeting multiple viral genes can be used to generate stable and durable virus resistance in rice, as well as other plant species.
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Affiliation(s)
- Fangquan Wang
- Institute of Food Crops, Jiangsu Academy of Agricultural Sciences/Nanjing Branch of Chinese National Center for Rice Improvement/Jiangsu High Quality Rice R & D Center, Nanjing 210014, China.
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China.
| | - Wenqi Li
- Institute of Food Crops, Jiangsu Academy of Agricultural Sciences/Nanjing Branch of Chinese National Center for Rice Improvement/Jiangsu High Quality Rice R & D Center, Nanjing 210014, China.
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China.
| | - Jinyan Zhu
- Institute of Food Crops, Jiangsu Academy of Agricultural Sciences/Nanjing Branch of Chinese National Center for Rice Improvement/Jiangsu High Quality Rice R & D Center, Nanjing 210014, China.
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China.
| | - Fangjun Fan
- Institute of Food Crops, Jiangsu Academy of Agricultural Sciences/Nanjing Branch of Chinese National Center for Rice Improvement/Jiangsu High Quality Rice R & D Center, Nanjing 210014, China.
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China.
| | - Jun Wang
- Institute of Food Crops, Jiangsu Academy of Agricultural Sciences/Nanjing Branch of Chinese National Center for Rice Improvement/Jiangsu High Quality Rice R & D Center, Nanjing 210014, China.
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China.
| | - Weigong Zhong
- Institute of Food Crops, Jiangsu Academy of Agricultural Sciences/Nanjing Branch of Chinese National Center for Rice Improvement/Jiangsu High Quality Rice R & D Center, Nanjing 210014, China.
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China.
| | - Ming-Bo Wang
- CSIRO Agriculture, GPO Box 1600, Canberra, ACT 2601, Australia.
| | - Qing Liu
- CSIRO Agriculture, GPO Box 1600, Canberra, ACT 2601, Australia.
| | - Qian-Hao Zhu
- CSIRO Agriculture, GPO Box 1600, Canberra, ACT 2601, Australia.
| | - Tong Zhou
- Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China.
| | - Ying Lan
- Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China.
| | - Yijun Zhou
- Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China.
| | - Jie Yang
- Institute of Food Crops, Jiangsu Academy of Agricultural Sciences/Nanjing Branch of Chinese National Center for Rice Improvement/Jiangsu High Quality Rice R & D Center, Nanjing 210014, China.
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China.
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