T H E unexpected composition of the progeny of a triploid plant of the Red Cherry variety of tomato (Lycopersicon esculentum) attracted our attention to the possibilities of greater tolerance of aneuploidy in primitive than in highly selected horticultural varieties. Previous experience with the latter varieties revealed striking morphological manifestations, reduced vigor, and decreased fertil...

Many quantitative trait loci (QTLs) for quality traits have been located on the tomato genetic map, but introgression of favourable wild alleles into large fruited species is hampered by co-localizations of QTLs with antagonist effects. The aim of this study was to assess the growth processes controlled by the main QTLs for fruit size and composition. Four nearly isogenic lines (NILs) derived f...