Nucleotide sequences of primers specific for the terminal areas of the tested DNA fragment conjugated with Rfo restorer gene for CMS ogura in rape, method for DNA amplification by polymerase chain reaction (PCR) with primers specific for genomic DNA fragment coupled with Rfo gene for CMS ogura in rape, process for the preparation of the nucleotide sequence of the DNA fragment conjugated the Rfo restorer gene for CMS ogura in rape, process for the preparation of SCAR type DNA marker for the identification of rape plants with Rfo restorer gene for ogura gene-cytoplasmic male sterility, method for the identification of rape plants with Rfo restorer gene for ogura gene-cytoplasmic male sterility and test kit for the identification of rape plants with Rfo restorer gene for ogura gene-cytoplasmic male sterility