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handle: 10261/42750
[ES]: Una entrada de la especie silvestre de tomate S. pimpinellifolium del banco de germoplasma de la Estación Experimental La Mayora-CSIC presenta resistencia a plagas (araña roja y mosca blanca) merced a sus tricomas glandulares de tipo IV y producción de acilsacarosas. Con el fin de estudiar si esta entrada y otros genotipos de tomate de ella derivados eran también resistentes a T. absoluta, se realizaron experimentos en condiciones de invernadero en CNPH (Brasilia, Brasil) y, una vez que Tuta se introdujo en España, en la E.E. La Mayora (Algarrobo, Málaga). Los genotipos con tricomas de tipo IV sufrieron menores daños por la plaga, especialmente en las hojas apicales, más jóvenes. La posibilidad del control de Tuta mediante la utilización de variedades resistentes queda abierta a futuros programas de mejora genética del carácter.
[EN]: We previously found resistance to pests (twospotted spider mite and whitefly) based on type IV glandular trichomes and acylsucrose production in an accession of the wild tomato species S. pimpinellifolium from the germplasm collection at the Experimental Station La Mayora – CSIC. Resistance to the South American tomato pinworm of that accession and plant materials derived from it was investigated in greenhouse conditions at CNPH (Brasilia, Brazil) and, when Tuta absoluta was introduced into Spain, at Exp. Sta. La Mayora (Málaga, southern Spain). Genotypes carrying type IV glandular trichomes showed reduced pest damage, especially on young, apical leaves. Possibility for control of Tuta by the utilization of resistant tomato cultivars looks forward to future breeding programmes for the trait.
2 páginas, 1 figura, 1 tabla.-- Artículo publicado en la revista profesional de sanidad vegetal.-- et al.
Trabajo financiado por MICINN-FEDER (Proyecto AGL2007-66760-C02-02/AGR).
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