| Sumario: | Introgression lines derived from the cross between cultivated tomato Moneymaker
and wild species Solanum pimpinellifolium showed resistance to the whiteflies Bemisia tabaci
(Gennadius) and Trialeurodes vaporariorum (Westwood) (Hemiptera: Aleyrodidae). In these
introgression lines, type IV glandular trichomes that produce acylsugars, conferred antixenosis
and antibiosis properties. Plant resistance to whitefly effectively reduced the spread of Tomato
yellow curl begomovirus (TYLCV) and Tomato chlorosis crinivirus (ToCV). However, early
developmental stages of these introgressed tomato plants showed limited protection against
whiteflies due to the non-abundance of glandular trichomes and low acylsugars synthesis. In
this work, the inoculation of introgressed tomato seedlings by Nesidiocoris tenuis Reuter
(Hemiptera: Miridae) resulted in an effective induction of type IV glandular trichomes and
prompted the production of acylsugars, leading to resistance to whitefly and whiteflytransmitted
viruses at early stages of crop development. Therefore, integrating traditional
breeding techniques with biological control in integrated pest management programs can offer
an efficient strategy for managing whiteflies and virus incidence in tomatoes.
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