Fuente: WIPO "tomato" The present invention relates to a modified CCA gene which encodes a CCA-adding enzyme, which modified CCA gene leads to resistance against a positive-strand RNA virus having a TLS, wherein the modified CCA gene comprises a gene comprising a nucleotide sequence that encodes a CCA-adding enzyme, a gene comprising a promoter sequence, or a gene comprising a nucleotide sequence that encodes a CCA-adding enzyme having a deletion, a substitution, or an insertion of at least one amino acid. The invention further relates to plants and seeds comprising the modified genes, methods for making and identifying such plants and use of the gene.