2000
DOI: 10.1007/s11738-000-0051-0
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Searching for new resistance sources to tomato yellow leaf curl virus within a highly variable wild Lycopersicon genetic pool

Abstract: The high variability lbund among Tomato yellow leaf curl virus (TYLCV) isolates from different geographical areas makes progress in breeding for TYLCV resistance slow.By using Agrobacterium-mediated inoculation, we have identified several new resistant sources to TYLCV within a extraordinarily variable wild Lycopersicon gene pool, collected in semidesert areas of Ecuador and Peru changed into wet by "El Ni6o". This screening assay revealed a high susceptibility within L. esculentum and L. pennellii, but differ… Show more

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Cited by 25 publications
(20 citation statements)
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“…In contrast with classical R-genes none of the resistances to TYLCV described so far are associated with a HR. Moreover, in almost all TYLCV resistant materials, viral replication occurs [25]–[28]. This also holds true for Ty-1 / Ty-3 , where in the donors ( S. chilense LA1969/LA1932) as well as in a commercial line with a Ty-1 introgression (3761, A.B.…”
Section: Introductionmentioning
confidence: 99%
“…In contrast with classical R-genes none of the resistances to TYLCV described so far are associated with a HR. Moreover, in almost all TYLCV resistant materials, viral replication occurs [25]–[28]. This also holds true for Ty-1 / Ty-3 , where in the donors ( S. chilense LA1969/LA1932) as well as in a commercial line with a Ty-1 introgression (3761, A.B.…”
Section: Introductionmentioning
confidence: 99%
“…Wild relatives of tomato provide a rich source of quantitative resistances to pests and pathogens (Fernandez-Munoz, Domínguez, & Cuartero, 2000;Huang, Hoefs-van de Putte, Haanstra-van der Meer, Meijer-Dekens, & Lindhout, 2000;Pico, Sifres, Elia, Diez, & Nuez, 2000;Rosello et al, 1999). Quantitative resistance to B. cinerea in wild relatives of S. lycopersicum was reported in infection assays using leaves inoculated with mycelium grown on agar plugs (Urbasch, 1986).…”
Section: Introductionmentioning
confidence: 99%
“…Muchos de estos caracteres podrían tener un interés directo en mejora. Parte de las entradas estudiadas en este trabajo han sido caracterizadas para caracteres de calidad y resistencia a enfermedades (Picó et al, 2000;Sánchez et al, 2000) habiendo encontrado algunas de ellas de interés para su uso en mejora. Diferentes programas de mejora con este objetivo están actualmente en progreso.…”
Section: 3 Análisis De Polimorfismo Y De La Diversidad Genéticaunclassified