Abstract: Method for selecting at least one potential marker molecule indicating an user defined phenotype feature of an organic object, comprising the steps of providing genotype data of genes of a group of organic objects and phenotype data of said group of organic objects, categorizing said genotype data and said phenotype data to generate categorized data of said group of organic objects, relating statistically said phenotype feature with the generated categorized data to extract genes having a strong statistical relationship with said phenotype feature, wherein the extracted genes and proteins corresponding to said extracted genes are selected as potential marker molecules.