Allelochemical

Selection of processing tomato genotypes with high acyl sugar content that are resistant to the tomato pinworm

D. M. Dias, Resende, J. T. V., Faria, M. V., Camargo, L. K. P., Chagas, R. R., and Lima, I. P., Selection of processing tomato genotypes with high acyl sugar content that are resistant to the tomato pinworm, vol. 12, pp. 381-389, 2013.

Acyl sugars are allelochemicals present at high concentrations in leaves of accessions of the wild tomato Solanum pennellii; they confer resistance to a large number of arthropod pests, including the tomato pinworm, Tuta absoluta (Lepidoptera, Gelechiidae). Accession 'LA716', with high contents of acyl sugars in the leaves, was used as a source of resistance to start a genetic breeding program of processing cultivated tomato, S. lycopersicum. We selected plants of the F2 generation of an interspecific cross (S. lycopersicum cv.

Inheritance of acylsugar contents in tomatoes derived from an interspecific cross with the wild tomato Lycopersicon pennellii and their effect on spider mite repellence

J. T. V. Resende, Maluf, W. Roberto, Nelson, D. L., Faria, M. Ventura, and Cardoso, Mdas Graça, Inheritance of acylsugar contents in tomatoes derived from an interspecific cross with the wild tomato Lycopersicon pennellii and their effect on spider mite repellence, vol. 1, pp. 106-116, 2002.

Acylsugars present in Lycopersicon pennellii are responsible for the high levels of pest resistance often found in this wild tomato taxon. We investigated the inheritance of acylsugar contents in segregating populations of the interspecific tomato cross L. esculentum x L. pennellii and estimated correlations between leaflet acylsugar contents and the levels of mite repellence. Acylsugar contents were quantified with the Sommogy-Nelson colorimetric method in the acessions L.

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