Acylsugars in tomato varieties confer resistance to the whitefly and reduce the spread of fumagine

Whiteflies (Bemisia tabaci) are a serious threat to tomato (Solanum lycopersicum) yield and production since all varieties highly susceptible this insect. The wild Solanum pennellii shows resistance towards whiteflies infestation due the high contents of acylsugars presents in its leaflets, which is not observed S. lycopersicum. Thus, plants from F2BC2 population derived cross between cultivar lycopersicum ‘Redenção’ (accession LA-716) were selected for levels evaluated whitefly fumagine, saprophyte fungus genus Capnodium (sooty mold) that grows on leaves using excretion. Biological behavior B. tabaci was significantly influenced by leaflets different genotypes. genotypes with higher exhibited lowest oviposition preference, number nymphs, exuviae adult survival. Also, percentage leaf coverage fumagine reduced acylsugars. it confirms use LA-716 enabled introgression genes increase degrees Finally, results presented suggest RVTA-2010-31-177pl#39, RVTA-2010-31-319pl#214 RVTA-2010-83-347pl#257 can be used as potential sources breeding programs.