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| Bertier, L.; Brouwer, H.; Cock, A.W.A.M. de; Cooke, D.E.L.; Olsson, C.H.B.; Höfte, M.. |
| Despite its association with important agricultural crops, Phytophthora clade 8b is a poorly studied group of species. The clade currently consists of three officially described species (Phytophthora porri, P. brassicae and P. primulae) that are host-specific pathogens of leek, cabbages and Primula spp., respectively. However, over the past few decades, several other clade 8b-like Phytophthoras have been found on a variety of different host plants that were all grown at low temperatures in winter seasons. In this study, a collection of 30 of these isolates was subjected to a phylogenetic study using two loci (the rDNA ITS region and the mitochondrial cox1 gene). This analysis revealed a clear clustering of isolates according to their host plants. To verify... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Host specificity; Low temperatures; Phylogeny; Phytophthora; Species description; Vegetables. |
| Ano: 2013 |
URL: http://www.repository.naturalis.nl/record/532058 |
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| Mideros, M.F.; Turissini, D.A.; Guayazán, N.; Ibarra-Avila, H.; Danies, G.; Cárdenas, M.; Myers, K.; Tabima, J.; Goss, E.M.; Bernal,, A.; Lagos, L.E.; Grajales, A.; Gonzalez, L.N.; Cooke, D.E.L.; Fry, W.E.; Grünwald, N.; Matute, D.R.; Restrepo, S.. |
| Over the past few years, symptoms akin to late blight disease have been reported on a variety of crop plants in South America. Despite the economic importance of these crops, the causal agents of the diseases belonging to the genus Phytophthora have not been completely characterized. In this study, a new Phytophthora species was described in Colombia from tree tomato (Solanum betaceum), a semi-domesticated fruit grown in northern South America. Comprehensive phylogenetic, morphological, population genetic analyses, and infection assays to characterize this new species, were conducted. All data support the description of the new species, Phytophthora betacei sp. nov. Phylogenetic analyses suggest that this new species belongs to clade 1c of the genus... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Host specificity; Microsatellites; Oomycetes; Species delimitation; Tree tomato. |
| Ano: 2018 |
URL: http://www.repository.naturalis.nl/record/643330 |
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