Genetics, Genomics and Breeding of Late Blight and Early Blight Resistance in Tomato
| Autor: | Hamid Ashrafi, Majid R. Foolad, Heather L. Merk |
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| Rok vydání: | 2008 |
| Předmět: | |
| Zdroj: | Critical Reviews in Plant Sciences. 27:75-107 |
| ISSN: | 1549-7836 0735-2689 |
| DOI: | 10.1080/07352680802147353 |
| Popis: | Late blight (LB), caused by the oomycete Phytophthora infestans, and early blight (EB), caused by the fungi Alternaria solani and A. tomatophila, are two common and destructive foliar diseases of the cultivated tomato (Solanum lycopersicum) and potato (Solanum tuberosum) in the United States and elsewhere in the world. While LB can infect and devastate tomato plants at any developmental stages, EB infection is usually associated with plant physiological maturity and fruit load where older senescing plants exhibit greater susceptibility and a heavy fruit set enhances the disease. At present, cultural practices and heavy use of fungicides are the most common measures for controlling LB and EB. Genetic resources for resistance have been identified for both diseases, largely within the tomato wild species, in particular the red-fruited species S. pimpinellifolium and the green-fruited species S. habrochaites. A few race-specific major resistance genes (e.g., Ph-1, Ph-2 and Ph-3) and several race-nonspecific r... |
| Databáze: | OpenAIRE |
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