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Khan MK, Pandey A, Athar T, Choudhary S, Deval R, Gezgin S, Hamurcu M, Topal A, Atmaca E, Santos PA, Omay MR, Suslu H, Gulcan K, Inanc M, Akkaya MS, Kahraman A, Thomas G. Fusarium head blight in wheat: contemporary status and molecular approaches. 3 Biotech 2020; 10:172. [PMID: 32206506 PMCID: PMC7080935 DOI: 10.1007/s13205-020-2158-x] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 02/28/2020] [Indexed: 02/07/2023] Open
Abstract
Fusarium head blight (FHB) disease that occurs in wheat is caused by Fusarium graminearum and is a major risk to wheat yield. Although several research efforts focusing on FHB have been conducted in the past several decades, conditions have become more critical due to the increase in its virulent forms. In such a scenario, conferring complete resistance in plants seems to be difficult for handling this issue. The phenotyping for FHB and finding a solution for it at the genetic level comprises a long-term process as FHB infection is largely affected by environmental conditions. Modern molecular strategies have played a crucial role in revealing the host-pathogen interaction in FHB. The integration of molecular biology-based methods such as genome-wide association studies and marker-based genomic selection has provided potential cultivars for breeding programs. In this review, we aim at outlining the contemporary status of the studies conducted on FHB in wheat. The influence of FHB in wheat on animals and human health is also discussed. In addition, a summary of the advancement in the molecular technologies for identifying and developing the FHB-resistant wheat genetic resources is provided. It also suggests the future measures that are required to reduce the world's vulnerability to FHB which was one of the main goals of the US Wheat and Barley Scab Initiative.
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Affiliation(s)
- Mohd. Kamran Khan
- Department of Soil Science and Plant Nutrition, Faculty of Agriculture, Selcuk University, Konya, 42079 Turkey
| | - Anamika Pandey
- Department of Soil Science and Plant Nutrition, Faculty of Agriculture, Selcuk University, Konya, 42079 Turkey
| | - Tabinda Athar
- Faculty of Agriculture, Institute of Soil and Environmental Sciences, University of Agriculture Faisalabad, Faisalabad, 38040 Pakistan
| | - Saumya Choudhary
- Department of Molecular and Cellular Engineering, Sam Higginbottom University of Agriculture, Technology and Sciences, Allahabad, 211007 India
- Biomedical Informatics Centre, National Institute of Pathology–Indian Council of Medical Research, New Delhi, 110029 India
| | - Ravi Deval
- Department of Biotechnology, Invertis University, Bareilly, India
| | - Sait Gezgin
- Department of Soil Science and Plant Nutrition, Faculty of Agriculture, Selcuk University, Konya, 42079 Turkey
| | - Mehmet Hamurcu
- Department of Soil Science and Plant Nutrition, Faculty of Agriculture, Selcuk University, Konya, 42079 Turkey
| | - Ali Topal
- Department of Field Crops, Selcuk University, Konya, 42079 Turkey
| | - Emel Atmaca
- Department of Soil Science and Plant Nutrition, Faculty of Agriculture, Selcuk University, Konya, 42079 Turkey
| | - Pamela Aracena Santos
- Department of Soil Science and Plant Nutrition, Faculty of Agriculture, Selcuk University, Konya, 42079 Turkey
| | - Makbule Rumeysa Omay
- Department of Soil Science and Plant Nutrition, Faculty of Agriculture, Selcuk University, Konya, 42079 Turkey
| | - Hatice Suslu
- Department of Soil Science and Plant Nutrition, Faculty of Agriculture, Selcuk University, Konya, 42079 Turkey
| | - Kamer Gulcan
- Department of Soil Science and Plant Nutrition, Faculty of Agriculture, Selcuk University, Konya, 42079 Turkey
| | - Merve Inanc
- Department of Soil Science and Plant Nutrition, Faculty of Agriculture, Selcuk University, Konya, 42079 Turkey
| | - Mahinur S. Akkaya
- School of Bioengineering, Dalian University of Technology, No. 2 Linggong Road, Dalian, 116023 Liaoning China
| | - Abdullah Kahraman
- Department of Field Crops, Faculty of Agriculture, Harran University, Sanliurfa, 63300 Turkey
| | - George Thomas
- Department of Molecular and Cellular Engineering, Sam Higginbottom University of Agriculture, Technology and Sciences, Allahabad, 211007 India
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Höfle L, Biedenkopf D, Werner BT, Shrestha A, Jelonek L, Koch A. Study on the efficiency of dsRNAs with increasing length in RNA-based silencing of the Fusarium CYP51 genes. RNA Biol 2020. [PMID: 31814508 DOI: 10.1101/824953] [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] [Indexed: 05/08/2023] Open
Abstract
Previously, we have demonstrated that transgenic Arabidopsis and barley plants, expressing a 791 nucleotide (nt) dsRNA (CYP3RNA) that targets all three CYP51 genes (FgCYP51A, FgCYP51B, FgCYP51C) in Fusarium graminearum (Fg), inhibited fungal infection via a process designated as host-induced gene silencing (HIGS). More recently, we have shown that spray applications of CYP3RNA also protect barley from fungal infection via a process termed spray-induced gene silencing (SIGS). Thus, RNAi technology may have the potential to revolutionize plant protection in agriculture. Therefore, successful field application will require optimization of RNAi design necessary to maximize the efficacy of the RNA silencing construct for making RNAi-based strategies a realistic and sustainable approach in agriculture. Previous studies indicate that silencing is correlated with the number of siRNAs generated from a dsRNA precursor. To prove the hypothesis that silencing efficiency is correlated with the number of siRNAs processed out of the dsRNA precursor, we tested in a HIGS and SIGS approach dsRNA precursors of increasing length ranging from 400 nt to 1500 nt to assess gene silencing efficiency of individual FgCYP51 genes. Concerning HIGS-mediated disease control, we found that there is no significant correlation between the length of the dsRNA precursor and the reduction of Fg infection on CYP51-dsRNA-expressing Arabidopsis plants. Importantly and in clear contrast to HIGS, we measured a decrease in SIGS-mediated Fg disease resistance that significantly correlates with the length of the dsRNA construct that was sprayed, indicating that the size of the dsRNA interferes with a sufficient uptake of dsRNAs by the fungus.
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Affiliation(s)
- L Höfle
- Institute of Phytopathology, Centre for BioSystems, Land Use and Nutrition, Justus Liebig University, Giessen, Germany
| | - D Biedenkopf
- Institute of Phytopathology, Centre for BioSystems, Land Use and Nutrition, Justus Liebig University, Giessen, Germany
| | - B T Werner
- Institute of Phytopathology, Centre for BioSystems, Land Use and Nutrition, Justus Liebig University, Giessen, Germany
| | - A Shrestha
- Institute for Epidemiology and Pathogen Diagnostics, Julius Kühn-Institute, Braunschweig, Germany
| | - L Jelonek
- Institute of Bioinformatics and Systems Biology, Justus Liebig University, Giessen, Germany
| | - A Koch
- Institute of Phytopathology, Centre for BioSystems, Land Use and Nutrition, Justus Liebig University, Giessen, Germany
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Höfle L, Biedenkopf D, Werner BT, Shrestha A, Jelonek L, Koch A. Study on the efficiency of dsRNAs with increasing length in RNA-based silencing of the Fusarium CYP51 genes. RNA Biol 2020; 17:463-473. [PMID: 31814508 DOI: 10.1080/15476286.2019.1700033] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
Previously, we have demonstrated that transgenic Arabidopsis and barley plants, expressing a 791 nucleotide (nt) dsRNA (CYP3RNA) that targets all three CYP51 genes (FgCYP51A, FgCYP51B, FgCYP51C) in Fusarium graminearum (Fg), inhibited fungal infection via a process designated as host-induced gene silencing (HIGS). More recently, we have shown that spray applications of CYP3RNA also protect barley from fungal infection via a process termed spray-induced gene silencing (SIGS). Thus, RNAi technology may have the potential to revolutionize plant protection in agriculture. Therefore, successful field application will require optimization of RNAi design necessary to maximize the efficacy of the RNA silencing construct for making RNAi-based strategies a realistic and sustainable approach in agriculture. Previous studies indicate that silencing is correlated with the number of siRNAs generated from a dsRNA precursor. To prove the hypothesis that silencing efficiency is correlated with the number of siRNAs processed out of the dsRNA precursor, we tested in a HIGS and SIGS approach dsRNA precursors of increasing length ranging from 400 nt to 1500 nt to assess gene silencing efficiency of individual FgCYP51 genes. Concerning HIGS-mediated disease control, we found that there is no significant correlation between the length of the dsRNA precursor and the reduction of Fg infection on CYP51-dsRNA-expressing Arabidopsis plants. Importantly and in clear contrast to HIGS, we measured a decrease in SIGS-mediated Fg disease resistance that significantly correlates with the length of the dsRNA construct that was sprayed, indicating that the size of the dsRNA interferes with a sufficient uptake of dsRNAs by the fungus.
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Affiliation(s)
- L Höfle
- Institute of Phytopathology, Centre for BioSystems, Land Use and Nutrition, Justus Liebig University, Giessen, Germany
| | - D Biedenkopf
- Institute of Phytopathology, Centre for BioSystems, Land Use and Nutrition, Justus Liebig University, Giessen, Germany
| | - B T Werner
- Institute of Phytopathology, Centre for BioSystems, Land Use and Nutrition, Justus Liebig University, Giessen, Germany
| | - A Shrestha
- Institute for Epidemiology and Pathogen Diagnostics, Julius Kühn-Institute, Braunschweig, Germany
| | - L Jelonek
- Institute of Bioinformatics and Systems Biology, Justus Liebig University, Giessen, Germany
| | - A Koch
- Institute of Phytopathology, Centre for BioSystems, Land Use and Nutrition, Justus Liebig University, Giessen, Germany
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