Genotyping and phenotyping of grape tomato hybrids aiming at possible genitors for breeding program

ABSTRACT Grape and cherry mini tomatoes have been conquering Brazilian consumers due to their sweet taste, practicality of consumption, versatility in culinary use. Therefore, the present work aimed characterize ten grape tomato hybrids based on genetic diversity physical biochemical traits provide information for development new genotypes focused appearance enrichment nutritional factors. The evaluated were Aiko, BRSIG, BRS Zamir, Carolina, Dolcetto, Dulce, Guaraci, Santa West, SCI-023 Sweet Heaven. experiment was conducted 2019 a greenhouse at State University Londrina, using completely randomized design with four replications six plants each replication. grown following practices recommended cultivating tomatoes. characterization data subjected analysis variance by F test (p<0.05) Scott & Knott means cluster (p<0.05), molecular principal coordinates (PCoA) Bayesian clustering. Aiko presented highest fruit mass size as opposed that observed SCI-023, while BRSIG firmest largest pericarp thickness. Heaven had higher sugar content. soluble solids content ranged from 6.04 9.66 °Brix among genotypes. Hybrids Heaven, Dulce antioxidant activity levels. In phenotypic two groups formed. genotypic showed seven which high similarity verified well between Carolina Dulce. greatest dissimilarity BRSIG. Both characterizations useful evaluate aptitude these outstanding genitors breeding programs market.