#Phlo fly rods free#

Data extracted from 129 studies, comprising 41 insect species across eight insect taxa and 12 host-plant families representing over 30 species, demonstrates that mechanisms deployed by resistant plants have common consequences on the feeding behaviour of diverse insect groups. Sap-feeding insects cause significant yield losses to the worlds crops, these insects feed using syringe-like mouthparts and electrophysiology can be used to compare feeding behaviour on susceptible and resistant plants to identify the mechanistic processes behind resistant phenotypes. The QTL on chromosome 12 was validated in F3 lines. vaporariorum were mapped on chromosomes 12 and 7 (explaining 13.9% and 6.0% of the variance respectively). Two Quantitative trait loci (QTLs) for reduced AS of T. A segregating F2 population was created to map the non-trichome based resistance. The resistance also had a small but significant effect on the whitefly Bemisia tabaci, but not on the thrips Frankliniella occidentalis. The effectiveness of the non-trichome based resistance appeared to depend on the season in which the plants were grown.

galapagense, in addition to trichome based resistance, also carries non-trichome based resistance components. The resistance affected whitefly adult survival (AS), but not oviposition rate. vaporariorum on plants without glandular trichomes type IV. Analysis of a collection of recombinant inbred lines derived from a cross between Solanum lycopersicum and Solanum galapagense showed resistance to the whitefly T.

In greenhouse grown tomatoes non-trichome based whitefly resistance may be better suited than glandular trichome based resistance as glandular trichomes may interfere with biocontrol, which is widely used. The greenhouse whitefly Trialeurodes vaporariorum is a major threat in tomato cultivation. These findings can be used to inform future breeding strategies to increase the resistance of commercial tomato varieties against this important pest. vaporariorum: a post-penetration, pre-phloem resistance mechanism and a phloem-located factor, which to the best of our knowledge is the first time that evidence for this has been presented. These findings evidence that a dual mode of resistance is present in this wild tomato against T. Whiteflies exhibited a shorter duration of the second feeding bout, reduced pathway phase probing, longer salivation in the phloem and more non-probing activities in the early stages of the EPG on the wild tomato species compared to the commercial tomato.

#Phlo fly rods free#

Results show that whiteflies preferentially settled on the commercial tomato more often in 80 % of the replicates when given free choice between the two tomato species and laid significantly fewer eggs on L.

The location of resistance factors was examined by use of electrical penetration graph (EPG) studies on these tomato species.

vaporariorum on this wild tomato species with data collected from a susceptible commercial tomato, S. Here, we assessed the pest resistance of Lycopersicon pimpinellifolium by comparing oviposition and feeding data from T. Therefore, locating the source of this enhanced resistance and breeding it into commercial tomato species is an important strategy to reduce the impact of pests on crops. Many wild tomato species exhibit a higher resistance to whiteflies. The glasshouse whitefly, Trialeurodes vaporariorum, is an important pest of many crop plants including tomato, Solanum lycopersicum.