Identification of an A2 population of Phythophthora andina attacking tree tomato in Peru indicates a risk of sexual reproduction in this pathosystem
Tree tomato, Solanum betaceum, is an Andean fruit crop previously shown to be attacked by Phytophthora andina in Ecuador and Colombia. Blight‐like symptoms were discovered on tree tomato plants in the central highlands of Peru in 2003 and shown to be caused by P. andina. Isolates of P. andina, colle...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
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Wiley
2016
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| Online Access: | https://hdl.handle.net/10568/72879 |
| _version_ | 1855513023433670656 |
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| author | Forbes, G. Gamboa, S. Lindqvist-Kreuze, H. Oliva, R.F. Pérez, W. |
| author_browse | Forbes, G. Gamboa, S. Lindqvist-Kreuze, H. Oliva, R.F. Pérez, W. |
| author_facet | Forbes, G. Gamboa, S. Lindqvist-Kreuze, H. Oliva, R.F. Pérez, W. |
| author_sort | Forbes, G. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Tree tomato, Solanum betaceum, is an Andean fruit crop previously shown to be attacked by Phytophthora andina in Ecuador and Colombia. Blight‐like symptoms were discovered on tree tomato plants in the central highlands of Peru in 2003 and shown to be caused by P. andina. Isolates of P. andina, collected from three different plantations in Peru over a 6‐year time span (2003–2008), were compared genetically with P. andina isolates from Colombia and Ecuador to test whether the pathogen population is geographically structured in the Andes. Restriction fragment length polymorphism (RFLP), mitochondrial DNA and simple sequence repeat (SSR) genetic markers, and mating type behaviour indicated that the Peruvian P. andina population from tree tomato is genetically distinct from populations infecting tree tomato in Colombia (CO‐1) and Ecuador (EC‐3, Ia, A1), but is more similar to the population infecting solanaceous hosts of the Anarrhichomenum complex (EC‐2, Ic, A2). Such geographic substructuring within this pathogen species could result from spatial isolation. Most strikingly, in contrast to the Ecuadorian and Colombian P. andina isolates from tree tomato, the Peruvian isolates have the A2 mating type. The presence of both mating types in the Andean population of P. andina attacking tree tomato indicates a risk of sexual reproduction and the presence of long‐lasting oospores in this pathosystem. |
| format | Journal Article |
| id | CGSpace72879 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2016 |
| publishDateRange | 2016 |
| publishDateSort | 2016 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | CGSpace728792025-11-12T04:54:52Z Identification of an A2 population of Phythophthora andina attacking tree tomato in Peru indicates a risk of sexual reproduction in this pathosystem Forbes, G. Gamboa, S. Lindqvist-Kreuze, H. Oliva, R.F. Pérez, W. tree tomato phytophthora horticulture genetics Tree tomato, Solanum betaceum, is an Andean fruit crop previously shown to be attacked by Phytophthora andina in Ecuador and Colombia. Blight‐like symptoms were discovered on tree tomato plants in the central highlands of Peru in 2003 and shown to be caused by P. andina. Isolates of P. andina, collected from three different plantations in Peru over a 6‐year time span (2003–2008), were compared genetically with P. andina isolates from Colombia and Ecuador to test whether the pathogen population is geographically structured in the Andes. Restriction fragment length polymorphism (RFLP), mitochondrial DNA and simple sequence repeat (SSR) genetic markers, and mating type behaviour indicated that the Peruvian P. andina population from tree tomato is genetically distinct from populations infecting tree tomato in Colombia (CO‐1) and Ecuador (EC‐3, Ia, A1), but is more similar to the population infecting solanaceous hosts of the Anarrhichomenum complex (EC‐2, Ic, A2). Such geographic substructuring within this pathogen species could result from spatial isolation. Most strikingly, in contrast to the Ecuadorian and Colombian P. andina isolates from tree tomato, the Peruvian isolates have the A2 mating type. The presence of both mating types in the Andean population of P. andina attacking tree tomato indicates a risk of sexual reproduction and the presence of long‐lasting oospores in this pathosystem. 2016-09 2016-04-11T20:15:27Z 2016-04-11T20:15:27Z Journal Article https://hdl.handle.net/10568/72879 en Open Access application/pdf Wiley Forbes, G.A.; Gamboa, S.; Lindqvist-Kreuze, H.; Oliva, R.F.; Perez, W. 2016. Identification of an A2 population of Phythophthora andina attacking tree tomato in Peru indicates a risk of sexual reproduction in this pathosystem. Plant Pathology. (UK). ISSN 0032-0862. 65(7):1109-1117. |
| spellingShingle | tree tomato phytophthora horticulture genetics Forbes, G. Gamboa, S. Lindqvist-Kreuze, H. Oliva, R.F. Pérez, W. Identification of an A2 population of Phythophthora andina attacking tree tomato in Peru indicates a risk of sexual reproduction in this pathosystem |
| title | Identification of an A2 population of Phythophthora andina attacking tree tomato in Peru indicates a risk of sexual reproduction in this pathosystem |
| title_full | Identification of an A2 population of Phythophthora andina attacking tree tomato in Peru indicates a risk of sexual reproduction in this pathosystem |
| title_fullStr | Identification of an A2 population of Phythophthora andina attacking tree tomato in Peru indicates a risk of sexual reproduction in this pathosystem |
| title_full_unstemmed | Identification of an A2 population of Phythophthora andina attacking tree tomato in Peru indicates a risk of sexual reproduction in this pathosystem |
| title_short | Identification of an A2 population of Phythophthora andina attacking tree tomato in Peru indicates a risk of sexual reproduction in this pathosystem |
| title_sort | identification of an a2 population of phythophthora andina attacking tree tomato in peru indicates a risk of sexual reproduction in this pathosystem |
| topic | tree tomato phytophthora horticulture genetics |
| url | https://hdl.handle.net/10568/72879 |
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