Large subclonal variation in Phytophthora infestans populations associated with Ecuadorian potato landraces
The population of Phytophthora infestans on potato landraces in three provinces (Carchi, Chimborazo and Loja) of Ecuador was analysed. All isolates (n = 66) were of the A1 mating type. Simple sequence repeats (SSR) were used to assess the genetic diversity of the isolates. The P. infestans isolates from the potato landraces grouped in a single clade together with reference isolates belonging to the clonal lineage EC-1. In the 66 SSR profiles obtained, 31 multilocus genotypes were identified. The 66 isolates constituted 49 different races according to the Solanum demissum differential set (R1 to R11). The P. infestans population was complex and virulent on 4 to 11 R genes. Analysis showed that the subclonal variation in the Ecuadorian EC-1 clone is increasing over time and is much larger than clonal variation in lineages in the Netherlands and Nicaragua, suggesting high mutation rates and little or no selection in Ecuador.
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Format: | Journal articles biblioteca |
Language: | English |
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2013-02
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Subjects: | PAPAS NATIVAS, SOLANUM PHUREJA, DIVERSIDAD, TIZÓN TARDÍO, PHYTOPHTHORA INFESTANS, SSRS, VIRULENCIA, |
Online Access: | http://repositorio.iniap.gob.ec/handle/41000/4824 |
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dig-iniap-41000-48242023-11-20T01:55:59Z Large subclonal variation in Phytophthora infestans populations associated with Ecuadorian potato landraces Plant Pathology 62(5):1081–1088 Delgado, Ricardo Monteros, Alvaro Li, Y. Visser, R.G.F. Lee, T.A.J. van der Vosman, B. PAPAS NATIVAS SOLANUM PHUREJA DIVERSIDAD TIZÓN TARDÍO PHYTOPHTHORA INFESTANS SSRS VIRULENCIA The population of Phytophthora infestans on potato landraces in three provinces (Carchi, Chimborazo and Loja) of Ecuador was analysed. All isolates (n = 66) were of the A1 mating type. Simple sequence repeats (SSR) were used to assess the genetic diversity of the isolates. The P. infestans isolates from the potato landraces grouped in a single clade together with reference isolates belonging to the clonal lineage EC-1. In the 66 SSR profiles obtained, 31 multilocus genotypes were identified. The 66 isolates constituted 49 different races according to the Solanum demissum differential set (R1 to R11). The P. infestans population was complex and virulent on 4 to 11 R genes. Analysis showed that the subclonal variation in the Ecuadorian EC-1 clone is increasing over time and is much larger than clonal variation in lineages in the Netherlands and Nicaragua, suggesting high mutation rates and little or no selection in Ecuador. 2018-02-19T19:53:20Z 2018-02-19T19:53:20Z 2013-02 Revista Artículo *EC-INIAP-BEESC-MGC. Quito (Plant Pathology 62(5):1081–1088) http://repositorio.iniap.gob.ec/handle/41000/4824 en p. 1081–1088 application/pdf E. E. Santa Catalina |
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PAPAS NATIVAS SOLANUM PHUREJA DIVERSIDAD TIZÓN TARDÍO PHYTOPHTHORA INFESTANS SSRS VIRULENCIA PAPAS NATIVAS SOLANUM PHUREJA DIVERSIDAD TIZÓN TARDÍO PHYTOPHTHORA INFESTANS SSRS VIRULENCIA |
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PAPAS NATIVAS SOLANUM PHUREJA DIVERSIDAD TIZÓN TARDÍO PHYTOPHTHORA INFESTANS SSRS VIRULENCIA PAPAS NATIVAS SOLANUM PHUREJA DIVERSIDAD TIZÓN TARDÍO PHYTOPHTHORA INFESTANS SSRS VIRULENCIA Delgado, Ricardo Monteros, Alvaro Li, Y. Visser, R.G.F. Lee, T.A.J. van der Vosman, B. Large subclonal variation in Phytophthora infestans populations associated with Ecuadorian potato landraces |
description |
The population of Phytophthora infestans on potato landraces in three provinces (Carchi, Chimborazo and Loja) of Ecuador was analysed. All isolates (n = 66) were of the A1 mating type. Simple sequence repeats (SSR) were used to assess the genetic diversity of the isolates. The P. infestans isolates from the potato landraces grouped in a single clade together with reference isolates belonging to the clonal lineage EC-1. In the 66 SSR profiles obtained, 31 multilocus genotypes were identified. The 66 isolates constituted 49 different races according to the Solanum demissum differential
set (R1 to R11). The P. infestans population was complex and virulent on 4 to 11 R genes. Analysis showed that the subclonal variation in the Ecuadorian EC-1 clone is increasing over time and is much larger than clonal variation in lineages in the Netherlands and Nicaragua, suggesting high mutation rates and little or no selection in Ecuador. |
format |
Revista |
topic_facet |
PAPAS NATIVAS SOLANUM PHUREJA DIVERSIDAD TIZÓN TARDÍO PHYTOPHTHORA INFESTANS SSRS VIRULENCIA |
author |
Delgado, Ricardo Monteros, Alvaro Li, Y. Visser, R.G.F. Lee, T.A.J. van der Vosman, B. |
author_facet |
Delgado, Ricardo Monteros, Alvaro Li, Y. Visser, R.G.F. Lee, T.A.J. van der Vosman, B. |
author_sort |
Delgado, Ricardo |
title |
Large subclonal variation in Phytophthora infestans populations associated with Ecuadorian potato landraces |
title_short |
Large subclonal variation in Phytophthora infestans populations associated with Ecuadorian potato landraces |
title_full |
Large subclonal variation in Phytophthora infestans populations associated with Ecuadorian potato landraces |
title_fullStr |
Large subclonal variation in Phytophthora infestans populations associated with Ecuadorian potato landraces |
title_full_unstemmed |
Large subclonal variation in Phytophthora infestans populations associated with Ecuadorian potato landraces |
title_sort |
large subclonal variation in phytophthora infestans populations associated with ecuadorian potato landraces |
publishDate |
2013-02 |
url |
http://repositorio.iniap.gob.ec/handle/41000/4824 |
work_keys_str_mv |
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