Evaluation of tree tomato genotypes [Cyphomandra betacea (Cav.) Sendt.] for resistance to Phytophthora infestans (Mont.) de Bary sensu lato attacks
Tree tomato is a species of fruit that is characterized as a production alternative with good acceptance and high demand. However, production has been affected by “gota o tizon tardio”, a disease caused by the oomycete Phytophthora infestans sensu lato. One of the more used methods to control this p...
| Main Authors: | , , , , |
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| Format: | Online |
| Language: | spa |
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Sociedad Colombiana de Ciencias Hortícolas-SCCH and Universidad Pedagógica y Tecnológica de Colombia-UPTC
2017
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| Subjects: | |
| Online Access: | https://revistas.uptc.edu.co/index.php/ciencias_horticolas/article/view/4725 |
| _version_ | 1801706266731479040 |
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| author | Chañag-Miramag, Harold Andrés Viveros-Rojas, Jesús Álvarez-Ordoñez, Sandra Criollo-Escobar, Hernando Lagos-Mora, Luz E. |
| author_facet | Chañag-Miramag, Harold Andrés Viveros-Rojas, Jesús Álvarez-Ordoñez, Sandra Criollo-Escobar, Hernando Lagos-Mora, Luz E. |
| author_sort | Chañag-Miramag, Harold Andrés |
| collection | OJS |
| description | Tree tomato is a species of fruit that is characterized as a production alternative with good acceptance and high demand. However, production has been affected by “gota o tizon tardio”, a disease caused by the oomycete Phytophthora infestans sensu lato. One of the more used methods to control this pathogen in the field is chemicals, but there are efficient and sustainable alternatives that reduce the impact of this disease, such as genetic resistance. The objective of this research was to evaluate 29 tomato genotypes from the departments of Nariño and Putumayo (Colombia) for resistance to attacks from two strains of P. infestans sensu lato, using pathogenicity tests with the in leaf technique, analyzing the parameters: area under the disease progress curve (AUDPC), infection efficiency, lesion size, sporulation rate, and incubation period. When analyzing the results, differences in the behavior of the evaluated genotypes against the attack of the pathogen were found. The genotype G1 was notable because it had the lowest values for AUDPC (15,554), infection efficiency (39%) and lesion size (6.38 cm2), explained by the absence of a genotype-strain interaction and classified as potential for genetic improvement. |
| format | Online |
| id | oai:oai.revistas.uptc.edu.co:article-4725 |
| institution | Revista Colombiana de Ciencias Hortícolas |
| language | spa |
| publishDate | 2017 |
| publisher | Sociedad Colombiana de Ciencias Hortícolas-SCCH and Universidad Pedagógica y Tecnológica de Colombia-UPTC |
| record_format | ojs |
| spelling | oai:oai.revistas.uptc.edu.co:article-47252020-08-03T23:59:07Z Evaluation of tree tomato genotypes [Cyphomandra betacea (Cav.) Sendt.] for resistance to Phytophthora infestans (Mont.) de Bary sensu lato attacks Evaluación de genotipos de tomate de árbol [Cyphomandra betacea (Cav.) Sendt.] frente al ataque de Phytophthora infestans (Mont.) de Bary sensu lato Chañag-Miramag, Harold Andrés Viveros-Rojas, Jesús Álvarez-Ordoñez, Sandra Criollo-Escobar, Hernando Lagos-Mora, Luz E. In leaf Oomycete patogenicity tolerance. SB354-402 SB621-795 SB119-124 In leaf Oomycete patogenicidad tolerancia. SB354-402 SB621-795 SB119-124 Tree tomato is a species of fruit that is characterized as a production alternative with good acceptance and high demand. However, production has been affected by “gota o tizon tardio”, a disease caused by the oomycete Phytophthora infestans sensu lato. One of the more used methods to control this pathogen in the field is chemicals, but there are efficient and sustainable alternatives that reduce the impact of this disease, such as genetic resistance. The objective of this research was to evaluate 29 tomato genotypes from the departments of Nariño and Putumayo (Colombia) for resistance to attacks from two strains of P. infestans sensu lato, using pathogenicity tests with the in leaf technique, analyzing the parameters: area under the disease progress curve (AUDPC), infection efficiency, lesion size, sporulation rate, and incubation period. When analyzing the results, differences in the behavior of the evaluated genotypes against the attack of the pathogen were found. The genotype G1 was notable because it had the lowest values for AUDPC (15,554), infection efficiency (39%) and lesion size (6.38 cm2), explained by the absence of a genotype-strain interaction and classified as potential for genetic improvement. El tomate de árbol es una especie frutal que se caracteriza por ser una alternativa productiva, de buena aceptación y alta demanda. Sin embargo, su producción se ha visto afectada la “gota o tizón tardío” enfermedad causada por el oomycete Phytophthora infestans sensu lato. Uno de los métodos ampliamente utilizados para el control del patógeno en campo es de tipo químico, no obstante existen alternativas eficiente y sostenible para disminuir el impacto de la enfermedad como la resistencia genética. El objetivo de esta investigación fue evaluar 29 genotipos de tomate de árbol procedentes de los departamentos de Nariño y Putumayo (Colombia) frente al ataque de dos cepas de P. infestans sensu lato, mediante pruebas de patogenicidad empleando la técnica in leaf analizando las variables: área bajo la curva de progreso de la enfermedad (AUDPC), eficiencia de infección, tamaño de lesión, tasa de esporulación y periodo de incubación. Al analizar los resultados obtenidos, se encontraron diferencias en el comportamiento de los genotipos evaluados frente al ataque del patógeno. Se destacó el genotipo G1 por presentar los valores más bajos para las variables AUDPC (15,554), eficiencia de infección (39%) y tamaño de lesión (6,38 cm2), lo cual se explica por la de una interacción genotipo-cepa y permite clasificarlo como potencial de uso para mejoramiento genético. Sociedad Colombiana de Ciencias Hortícolas-SCCH and Universidad Pedagógica y Tecnológica de Colombia-UPTC 2017-06-13 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Experiment Experimental application/pdf https://revistas.uptc.edu.co/index.php/ciencias_horticolas/article/view/4725 10.17584/rcch.2017v11i1.4725 Revista Colombiana de Ciencias Hortícolas; Vol. 11 No. 1 (2017); 11-20 Revista Colombiana de Ciencias Hortícolas; Vol. 11 Núm. 1 (2017); 11-20 Revista Colombiana de Ciencias Hortícolas; Vol. 11 No 1 (2017); 11-20 Revista Colombiana de Ciencias Hortícolas; V. 11 N. 1 (2017); 11-20 Revista Colombiana de Ciencias Hortícolas; v. 11 n. 1 (2017); 11-20 2422-3719 2011-2173 spa https://revistas.uptc.edu.co/index.php/ciencias_horticolas/article/view/4725/pdf |
| spellingShingle | In leaf Oomycete patogenicity tolerance. SB354-402 SB621-795 SB119-124 In leaf Oomycete patogenicidad tolerancia. SB354-402 SB621-795 SB119-124 Chañag-Miramag, Harold Andrés Viveros-Rojas, Jesús Álvarez-Ordoñez, Sandra Criollo-Escobar, Hernando Lagos-Mora, Luz E. Evaluation of tree tomato genotypes [Cyphomandra betacea (Cav.) Sendt.] for resistance to Phytophthora infestans (Mont.) de Bary sensu lato attacks |
| title | Evaluation of tree tomato genotypes [Cyphomandra betacea (Cav.) Sendt.] for resistance to Phytophthora infestans (Mont.) de Bary sensu lato attacks |
| title_alt | Evaluación de genotipos de tomate de árbol [Cyphomandra betacea (Cav.) Sendt.] frente al ataque de Phytophthora infestans (Mont.) de Bary sensu lato |
| title_full | Evaluation of tree tomato genotypes [Cyphomandra betacea (Cav.) Sendt.] for resistance to Phytophthora infestans (Mont.) de Bary sensu lato attacks |
| title_fullStr | Evaluation of tree tomato genotypes [Cyphomandra betacea (Cav.) Sendt.] for resistance to Phytophthora infestans (Mont.) de Bary sensu lato attacks |
| title_full_unstemmed | Evaluation of tree tomato genotypes [Cyphomandra betacea (Cav.) Sendt.] for resistance to Phytophthora infestans (Mont.) de Bary sensu lato attacks |
| title_short | Evaluation of tree tomato genotypes [Cyphomandra betacea (Cav.) Sendt.] for resistance to Phytophthora infestans (Mont.) de Bary sensu lato attacks |
| title_sort | evaluation of tree tomato genotypes cyphomandra betacea cav sendt for resistance to phytophthora infestans mont de bary sensu lato attacks |
| topic | In leaf Oomycete patogenicity tolerance. SB354-402 SB621-795 SB119-124 In leaf Oomycete patogenicidad tolerancia. SB354-402 SB621-795 SB119-124 |
| topic_facet | In leaf Oomycete patogenicity tolerance. SB354-402 SB621-795 SB119-124 In leaf Oomycete patogenicidad tolerancia. SB354-402 SB621-795 SB119-124 |
| url | https://revistas.uptc.edu.co/index.php/ciencias_horticolas/article/view/4725 |
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