Molecular identification of the causal agent of bacterial wilt in tomato plants in southwestern Paraná
Bacterial wilt, caused by phytopathogenic species of the genus Ralstonia, is one of the main diseases affecting the tomato crop. The Ralstonia solanacearum species complex occurs as a result of variants being widely diverse in terms of adaptation to different climatic conditions, host variations, a...
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| Format: | Article |
| Language: | English |
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Universidade Estadual de Londrina
2024-01-01
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| Series: | Semina: Ciências Agrárias |
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| Online Access: | https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/48251 |
| _version_ | 1827368204064784384 |
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| author | Vanessa Casiraghi Zanon João Matheus Kafer Jaqueline Hagn Jessica Cardoso Rosangela Dallemole-Giaretta Taciane Finatto Thiago de Oliveira Vargas |
| author_facet | Vanessa Casiraghi Zanon João Matheus Kafer Jaqueline Hagn Jessica Cardoso Rosangela Dallemole-Giaretta Taciane Finatto Thiago de Oliveira Vargas |
| author_sort | Vanessa Casiraghi Zanon |
| collection | DOAJ |
| description |
Bacterial wilt, caused by phytopathogenic species of the genus Ralstonia, is one of the main diseases affecting the tomato crop. The Ralstonia solanacearum species complex occurs as a result of variants being widely diverse in terms of adaptation to different climatic conditions, host variations, and aggressiveness, which complicate disease control recommendations. In this study, we employed molecular methods to analyze 26 R. solanacearum isolates collected from tomato plants cultivated in the southwest region of Paraná, Brazil. Isolates were obtained from plants exhibiting wilt symptoms in a protected cultivation system and in an open field. The specific primers 759/760 confirmed the isolates as part of the Ralstonia solanacearum complex, and Nmult primers were used to identify the phylotype. Variability analysis using BOX-PCR with the BOX-A1R primer on 19 isolates revealed molecular diversity. All 26 isolates were confirmed as Ralstonia solanacearum, belonging to phylotype II. Comparison of genomic DNA band patterns amplified by BOX-PCR indicated molecular variability, forming eight groups at a similarity level of 0.63. These results confirm the prevalence of R. solanacearum phylotype II in southwestern Paraná. This information aids decision-making in disease management and contributes to breeding efforts aiming at the development of resistant cultivars.
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| first_indexed | 2024-03-08T09:27:14Z |
| format | Article |
| id | doaj.art-b39348c18a1e452197b37989d96fa445 |
| institution | Directory Open Access Journal |
| issn | 1676-546X 1679-0359 |
| language | English |
| last_indexed | 2024-03-08T09:27:14Z |
| publishDate | 2024-01-01 |
| publisher | Universidade Estadual de Londrina |
| record_format | Article |
| series | Semina: Ciências Agrárias |
| spelling | doaj.art-b39348c18a1e452197b37989d96fa4452024-01-31T06:44:23ZengUniversidade Estadual de LondrinaSemina: Ciências Agrárias1676-546X1679-03592024-01-0144610.5433/1679-0359.2023v44n6p2249Molecular identification of the causal agent of bacterial wilt in tomato plants in southwestern ParanáVanessa Casiraghi Zanon0João Matheus Kafer1Jaqueline Hagn2Jessica Cardoso3Rosangela Dallemole-Giaretta4Taciane Finatto5Thiago de Oliveira Vargas6Universidade Tecnológica Federal do ParanáUniversidade Tecnológica Federal do ParanáUniversidade Tecnológica Federal do ParanáUniversidade Tecnológica Federal do ParanáUniversidade Tecnológica Federal do ParanáUniversidade Tecnológica Federal do ParanáUniversidade Tecnológica Federal do Paraná Bacterial wilt, caused by phytopathogenic species of the genus Ralstonia, is one of the main diseases affecting the tomato crop. The Ralstonia solanacearum species complex occurs as a result of variants being widely diverse in terms of adaptation to different climatic conditions, host variations, and aggressiveness, which complicate disease control recommendations. In this study, we employed molecular methods to analyze 26 R. solanacearum isolates collected from tomato plants cultivated in the southwest region of Paraná, Brazil. Isolates were obtained from plants exhibiting wilt symptoms in a protected cultivation system and in an open field. The specific primers 759/760 confirmed the isolates as part of the Ralstonia solanacearum complex, and Nmult primers were used to identify the phylotype. Variability analysis using BOX-PCR with the BOX-A1R primer on 19 isolates revealed molecular diversity. All 26 isolates were confirmed as Ralstonia solanacearum, belonging to phylotype II. Comparison of genomic DNA band patterns amplified by BOX-PCR indicated molecular variability, forming eight groups at a similarity level of 0.63. These results confirm the prevalence of R. solanacearum phylotype II in southwestern Paraná. This information aids decision-making in disease management and contributes to breeding efforts aiming at the development of resistant cultivars. https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/48251Genetic variabilityRalstonia solanacearumSolanum lycopersicum. |
| spellingShingle | Vanessa Casiraghi Zanon João Matheus Kafer Jaqueline Hagn Jessica Cardoso Rosangela Dallemole-Giaretta Taciane Finatto Thiago de Oliveira Vargas Molecular identification of the causal agent of bacterial wilt in tomato plants in southwestern Paraná Semina: Ciências Agrárias Genetic variability Ralstonia solanacearum Solanum lycopersicum. |
| title | Molecular identification of the causal agent of bacterial wilt in tomato plants in southwestern Paraná |
| title_full | Molecular identification of the causal agent of bacterial wilt in tomato plants in southwestern Paraná |
| title_fullStr | Molecular identification of the causal agent of bacterial wilt in tomato plants in southwestern Paraná |
| title_full_unstemmed | Molecular identification of the causal agent of bacterial wilt in tomato plants in southwestern Paraná |
| title_short | Molecular identification of the causal agent of bacterial wilt in tomato plants in southwestern Paraná |
| title_sort | molecular identification of the causal agent of bacterial wilt in tomato plants in southwestern parana |
| topic | Genetic variability Ralstonia solanacearum Solanum lycopersicum. |
| url | https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/48251 |
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