The invention relates to a Solanum lycopersicum plant comprising in its genome, on chromosome 1, introgressed sequences from Solanum habrochaites, wherein said introgressed sequences confer to the plant an improved phenotype corresponding to both an increased yield and an increased amount of soluble sugars allocated to fruits (Brix*Yield), with respect to a corresponding plant devoid of said sequences, and wherein said introgressed sequences are chosen from those present in the genome of a plant of the seeds ToPATYIELD NCIMB accession number 42567. The introgressed sequences are preferably characterized by defined alleles of different SNPs. on chromosome 1, inter alia allele T of SNP IL2_3605 (SEQ ID No.9) and/or allele A IL2_6411 (SEQ ID No.12). The invention is also directed to parts of these plants with improved phenotype, as well as progeny, to the use of these plants for introgressing the improved phenotype in another genetic background, as well as to different methods for obtaining tomato plants or seeds with increased yield and brix*yield.
