Optimization of CTAB-based RNA Extraction for in planta Fusarium oxysporum f. sp. cubense Gene Expression Study
A crucial prerequisite for an insightful gene expression study is the quality of the nucleic acid extracted. High-quality nucleic acids allow comparative downstream analyses for both organisms during a phytopathogen infection. However, RNA extraction of pathogen-infected host materials usually invol...
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Penerbit Universiti Kebangsaan Malaysia
2019
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| author | Poon, Nee Kiew Othman, Rofina Yasmin Mebus, Katharina Teo, Chee How |
| author_facet | Poon, Nee Kiew Othman, Rofina Yasmin Mebus, Katharina Teo, Chee How |
| author_sort | Poon, Nee Kiew |
| collection | UM |
| description | A crucial prerequisite for an insightful gene expression study is the quality of the nucleic acid extracted. High-quality nucleic acids allow comparative downstream analyses for both organisms during a phytopathogen infection. However, RNA extraction of pathogen-infected host materials usually involves extraction methods that are optimised individually for either the pathogen or the host. Different sets of buffers or specialised commercial kits are often required. In this study, a streamlined CTAB-based extraction protocol was optimised for both the pure culture of Fusarium oxysporum f. sp. cubense (Foc) and infected banana roots. Foc cultures were grown on PDA overlaid by a nylon membrane and total nucleic acids were successfully extracted from mycelia with a ratio of 100 mg mycelia powder mass to 2 mL of CTAB buffer. Using the optimised protocol, LiCl-precipitated RNAs showed higher values of A260/280 (2.064 ± 0.021) and A260/230 (1.937 ± 0.076) compared to ethanol precipitated RNAs. Similar observation was observed for inoculated banana roots where LiCl-precipitated RNAs showed higher values of A260/230 and A260/280 compared to ethanol precipitated RNAs. qRT-PCR analysis using a pair of Foc specific primers, FoTEF1a, confirmed that the LiCl-precipitated RNA was more suitable for downstream gene expression studies. This extraction protocol is applicable for Foc in planta gene expression study with a high potential to be extended to other filamentous fungal pathogens. © 2019 Penerbit Universiti Kebangsaan Malaysia. All rights reserved. |
| first_indexed | 2024-03-06T06:00:46Z |
| format | Article |
| id | um.eprints-23747 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T06:00:46Z |
| publishDate | 2019 |
| publisher | Penerbit Universiti Kebangsaan Malaysia |
| record_format | dspace |
| spelling | um.eprints-237472020-02-12T01:10:08Z http://eprints.um.edu.my/23747/ Optimization of CTAB-based RNA Extraction for in planta Fusarium oxysporum f. sp. cubense Gene Expression Study Poon, Nee Kiew Othman, Rofina Yasmin Mebus, Katharina Teo, Chee How Q Science (General) QH Natural history A crucial prerequisite for an insightful gene expression study is the quality of the nucleic acid extracted. High-quality nucleic acids allow comparative downstream analyses for both organisms during a phytopathogen infection. However, RNA extraction of pathogen-infected host materials usually involves extraction methods that are optimised individually for either the pathogen or the host. Different sets of buffers or specialised commercial kits are often required. In this study, a streamlined CTAB-based extraction protocol was optimised for both the pure culture of Fusarium oxysporum f. sp. cubense (Foc) and infected banana roots. Foc cultures were grown on PDA overlaid by a nylon membrane and total nucleic acids were successfully extracted from mycelia with a ratio of 100 mg mycelia powder mass to 2 mL of CTAB buffer. Using the optimised protocol, LiCl-precipitated RNAs showed higher values of A260/280 (2.064 ± 0.021) and A260/230 (1.937 ± 0.076) compared to ethanol precipitated RNAs. Similar observation was observed for inoculated banana roots where LiCl-precipitated RNAs showed higher values of A260/230 and A260/280 compared to ethanol precipitated RNAs. qRT-PCR analysis using a pair of Foc specific primers, FoTEF1a, confirmed that the LiCl-precipitated RNA was more suitable for downstream gene expression studies. This extraction protocol is applicable for Foc in planta gene expression study with a high potential to be extended to other filamentous fungal pathogens. © 2019 Penerbit Universiti Kebangsaan Malaysia. All rights reserved. Penerbit Universiti Kebangsaan Malaysia 2019 Article PeerReviewed Poon, Nee Kiew and Othman, Rofina Yasmin and Mebus, Katharina and Teo, Chee How (2019) Optimization of CTAB-based RNA Extraction for in planta Fusarium oxysporum f. sp. cubense Gene Expression Study. Sains Malaysiana, 48 (10). pp. 2125-2133. ISSN 0126-6039, DOI https://doi.org/10.17576/jsm-2019-4810-07 <https://doi.org/10.17576/jsm-2019-4810-07>. https://doi.org/10.17576/jsm-2019-4810-07 doi:10.17576/jsm-2019-4810-07 |
| spellingShingle | Q Science (General) QH Natural history Poon, Nee Kiew Othman, Rofina Yasmin Mebus, Katharina Teo, Chee How Optimization of CTAB-based RNA Extraction for in planta Fusarium oxysporum f. sp. cubense Gene Expression Study |
| title | Optimization of CTAB-based RNA Extraction for in planta Fusarium oxysporum f. sp. cubense Gene Expression Study |
| title_full | Optimization of CTAB-based RNA Extraction for in planta Fusarium oxysporum f. sp. cubense Gene Expression Study |
| title_fullStr | Optimization of CTAB-based RNA Extraction for in planta Fusarium oxysporum f. sp. cubense Gene Expression Study |
| title_full_unstemmed | Optimization of CTAB-based RNA Extraction for in planta Fusarium oxysporum f. sp. cubense Gene Expression Study |
| title_short | Optimization of CTAB-based RNA Extraction for in planta Fusarium oxysporum f. sp. cubense Gene Expression Study |
| title_sort | optimization of ctab based rna extraction for in planta fusarium oxysporum f sp cubense gene expression study |
| topic | Q Science (General) QH Natural history |
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