Quantitative resistance differences between and within natural populations of Solanum chilense against the oomycete pathogen Phytophthora infestans
Abstract The wild tomato species Solanum chilense is divided into geographically and genetically distinct populations that show signs of defense gene selection and differential phenotypes when challenged with several phytopathogens, including the oomycete causal agent of late blight Phytophthora inf...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-06-01
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| Series: | Ecology and Evolution |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/ece3.7610 |
| _version_ | 1819062994869420032 |
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| author | Parvinderdeep S. Kahlon Melissa Verin Ralph Hückelhoven Remco Stam |
| author_facet | Parvinderdeep S. Kahlon Melissa Verin Ralph Hückelhoven Remco Stam |
| author_sort | Parvinderdeep S. Kahlon |
| collection | DOAJ |
| description | Abstract The wild tomato species Solanum chilense is divided into geographically and genetically distinct populations that show signs of defense gene selection and differential phenotypes when challenged with several phytopathogens, including the oomycete causal agent of late blight Phytophthora infestans. To better understand the phenotypic diversity of this disease resistance in S. chilense and to assess the effect of plant genotype versus pathogen isolate, respectively, we evaluated infection frequency in a systematic approach and with large sample sizes. We studied 85 genetically distinct individuals representing nine geographically separated populations of S. chilense. This showed that differences in quantitative resistance can be observed between but also within populations at the level of individual plants. Our data also did not reveal complete immunity in any of the genotypes. We further evaluated the resistance of a subset of the plants against P. infestans isolates with diverse virulence properties. This confirmed that the relative differences in resistance phenotypes between individuals were mainly determined by the plant genotype under consideration with modest effects of pathogen isolate used in the study. Thus, our report suggests that the observed quantitative resistance against P. infestans in natural populations of a wild tomato species S. chilense is the result of basal defense responses that depend on the host genotype and are pathogen isolate‐unspecific. |
| first_indexed | 2024-12-21T15:07:38Z |
| format | Article |
| id | doaj.art-2eec3b33f4f74fbf8edf81e31610ab75 |
| institution | Directory Open Access Journal |
| issn | 2045-7758 |
| language | English |
| last_indexed | 2024-12-21T15:07:38Z |
| publishDate | 2021-06-01 |
| publisher | Wiley |
| record_format | Article |
| series | Ecology and Evolution |
| spelling | doaj.art-2eec3b33f4f74fbf8edf81e31610ab752022-12-21T18:59:23ZengWileyEcology and Evolution2045-77582021-06-0111127768777810.1002/ece3.7610Quantitative resistance differences between and within natural populations of Solanum chilense against the oomycete pathogen Phytophthora infestansParvinderdeep S. Kahlon0Melissa Verin1Ralph Hückelhoven2Remco Stam3TUM School of Life Sciences Technical University of Munich Freising GermanyTUM School of Life Sciences Technical University of Munich Freising GermanyTUM School of Life Sciences Technical University of Munich Freising GermanyTUM School of Life Sciences Technical University of Munich Freising GermanyAbstract The wild tomato species Solanum chilense is divided into geographically and genetically distinct populations that show signs of defense gene selection and differential phenotypes when challenged with several phytopathogens, including the oomycete causal agent of late blight Phytophthora infestans. To better understand the phenotypic diversity of this disease resistance in S. chilense and to assess the effect of plant genotype versus pathogen isolate, respectively, we evaluated infection frequency in a systematic approach and with large sample sizes. We studied 85 genetically distinct individuals representing nine geographically separated populations of S. chilense. This showed that differences in quantitative resistance can be observed between but also within populations at the level of individual plants. Our data also did not reveal complete immunity in any of the genotypes. We further evaluated the resistance of a subset of the plants against P. infestans isolates with diverse virulence properties. This confirmed that the relative differences in resistance phenotypes between individuals were mainly determined by the plant genotype under consideration with modest effects of pathogen isolate used in the study. Thus, our report suggests that the observed quantitative resistance against P. infestans in natural populations of a wild tomato species S. chilense is the result of basal defense responses that depend on the host genotype and are pathogen isolate‐unspecific.https://doi.org/10.1002/ece3.7610natural populationsPhytophthora infestansquantitative resistanceSolanum chilense |
| spellingShingle | Parvinderdeep S. Kahlon Melissa Verin Ralph Hückelhoven Remco Stam Quantitative resistance differences between and within natural populations of Solanum chilense against the oomycete pathogen Phytophthora infestans Ecology and Evolution natural populations Phytophthora infestans quantitative resistance Solanum chilense |
| title | Quantitative resistance differences between and within natural populations of Solanum chilense against the oomycete pathogen Phytophthora infestans |
| title_full | Quantitative resistance differences between and within natural populations of Solanum chilense against the oomycete pathogen Phytophthora infestans |
| title_fullStr | Quantitative resistance differences between and within natural populations of Solanum chilense against the oomycete pathogen Phytophthora infestans |
| title_full_unstemmed | Quantitative resistance differences between and within natural populations of Solanum chilense against the oomycete pathogen Phytophthora infestans |
| title_short | Quantitative resistance differences between and within natural populations of Solanum chilense against the oomycete pathogen Phytophthora infestans |
| title_sort | quantitative resistance differences between and within natural populations of solanum chilense against the oomycete pathogen phytophthora infestans |
| topic | natural populations Phytophthora infestans quantitative resistance Solanum chilense |
| url | https://doi.org/10.1002/ece3.7610 |
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