Fecha de publicación: -- Fuente: WIPO "tomato" The present invention relates to Solanum lycopersicum plants that display improved resistance to a Botrytis cinerea infection. The invention relates to plants comprising a mutant allele of at least one gene encoding a Cas1p-like protein and wherein the loss-of-function mutant allele of said gene confers an improved resistance to a Botrytis cinerea infection to said plant. The invention is also directed to parts of these plants, to methods for producing and identifying, detecting and/or selecting such plants.