FISH mapping of one karyotype marker from each of the eight sets on one set of B. rapa mitotic metaphase chromosomes. The numbers on the magnified chromosomes represent chromosome numbers. The lowest row shows the karyotype of mitotic metaphase chromosomes with FISH patterns of the karyotype markers. White arrows indicate chromosomes 1 and 2, which were recognized by the following morphological remarks: the largest chromosome for chromosome 1 and the NOR-bearing chromosome for chromosome 2. Scale bar = 5 μm.