This invention pertains to a transgenic Brassica plant cell,comprising elite event MS-B2, reference seed comprising said event having beendeposited at the ATCC under accession number PTA-850 or PTA-2485, thegenomic DNA of which can be used to amplify a DNA fragment of between 160and 200 bp, using a polymerase chain reaction with two primers having thenucleotide sequence of SEQ ID NO: 11 and SEQ ID NO: 12 respectively. Theinvention also pertains to methods and a kit for identifying a transgenicplant or acell or tissue thereof comprising elite event MS-B2.