DNA sequence of centromere of each macro-chromosome is specific. (A) Using DNA clones, which hybridized with centromere region by FISH, DNA sequence of each repeat-unit was characterized. Each DNA sequence was deposited in DDBJ/EMBL/GenBank DNA database. Accession numbers of Cen1, Cen2, Cen3, Cen4, Cen7, Cen8, and Cen11 are AB556722, AB556723, AB556724, AB556725, AB556726, AB556727, and AB556728, respectively. Length of each repeat-unit was determined by Southern hybridization. Probes are indicated in each panel. (B) Homology region in each repeat-unit sequence with known interspersed repeats is shown. Percentage of identity and position of repeats are also shown. Sequences of interspersed repeats are from RepBase. RepBase IDs of CR1-C, Satellite CR1, and GGXHOI sequence are CR1-C, Sat-CR1-GG, and GGXHOI, respectively. Li and Leung (2006) have previous shown that Cen4 contains a CR-1 repeat.
