Abstract: The present invention relates to novel tomato plants producing fruits displaying a modified sugar content, particularly displaying an increased sucrose content. The present invention also relates to seeds and parts of said plants, for example fruits. The present invention further relates to methods of making and using such seeds and plants. The present invention also relates to a novel sucrose modifier SucMod allele, which, when combined with a sucrose accumulation TIV allele derived from a green-fruited wild tomato accession, significantly alters the proportion of sugar stored in the fruit, confers increased fruit sucrose content at the expense of hexose sugars and results in a fruit with a distinctive flavour.